{"id":56656,"date":"2026-09-01T01:12:37","date_gmt":"2026-09-01T01:12:37","guid":{"rendered":"https:\/\/zobai.com\/?p=56656"},"modified":"2026-09-24T13:38:17","modified_gmt":"2026-09-24T13:38:17","slug":"common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks","status":"publish","type":"post","link":"https:\/\/zobai.com\/ar\/blog\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks\/","title":{"rendered":"\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0623\u0645\u0627\u0646 \u0641\u064a \u0645\u0634\u0639\u0628 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0634\u062a\u0631\u0643: \u0641\u062d\u0648\u0635\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0648\u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646"},"content":{"rendered":"<style>\n  .zobai-common-header-guide {\n    max-width: 100%;\n  }<\/p>\n<p>  .zobai-common-header-guide,\n  .zobai-common-header-guide * {\n    box-sizing: border-box;\n  }<\/p>\n<p>  .zobai-common-header-guide section {\n    scroll-margin-top: 6rem;\n  }<\/p>\n<p>  .zobai-common-header-guide a {\n    overflow-wrap: anywhere;\n    word-break: break-word;\n  }<\/p>\n<p>  .zobai-common-header-guide .zobai-table-scroll {\n    width: 100%;\n    max-width: 100%;\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n  }<\/p>\n<p>  .zobai-common-header-guide table {\n    width: 100%;\n    border-collapse: collapse;\n  }<\/p>\n<p>  .zobai-common-header-guide th,\n  .zobai-common-header-guide td {\n    vertical-align: top;\n    text-align: left;\n    overflow-wrap: break-word;\n  }<\/p>\n<p>  .zobai-common-header-guide .zobai-cta {\n    margin-top: 1.5rem;\n  }<\/p>\n<p>  @media (max-width: 390px) {\n    .zobai-common-header-guide .zobai-table-scroll table {\n      min-width: 620px;\n    }<\/p>\n<p>    .zobai-common-header-guide ul,\n    .zobai-common-header-guide ol {\n      padding-inline-start: 1.35rem;\n    }\n  }\n<\/style>\n<article class=\"zobai-common-header-guide\">\n<header class=\"zobai-common-header-guide__intro\">\n<p><strong>\u0625\u062c\u0627\u0628\u0629 \u0645\u0628\u0627\u0634\u0631\u0629:<\/strong> \u064a\u062c\u0639\u0644 \u0645\u0634\u0639\u0628 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0636\u063a\u0637 \u0645\u062e\u0631\u062c \u0635\u0645\u0627\u0645 \u0627\u0644\u0623\u0645\u0627\u0646 \u0646\u062a\u064a\u062c\u0629 \u0644\u0644\u0646\u0638\u0627\u0645 \u0648\u0644\u064a\u0633 \u0645\u062f\u062e\u0644\u0627\u064b \u0644\u0635\u0645\u0627\u0645 \u0648\u0627\u062d\u062f. \u064a\u062c\u0628 \u0623\u0646 \u064a\u062d\u062f\u062f \u0627\u0644\u0645\u0631\u0627\u062c\u0639\u0629 \u0633\u064a\u0646\u0627\u0631\u064a\u0648 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u0639\u0642\u0648\u0644\u060c \u0648\u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062a\u064a \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0633\u0627\u0647\u0645 \u0641\u064a \u0646\u0641\u0633 \u0627\u0644\u0648\u0642\u062a\u060c \u0648\u0627\u0644\u062a\u0645\u064a\u064a\u0632 \u0628\u064a\u0646 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062a\u0631\u0627\u0643\u0628 \u0627\u0644\u0645\u0648\u062c\u0648\u062f \u0645\u0633\u0628\u0642\u064b\u0627 \u0648\u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u062a\u062f\u0641\u0642 \u0627\u0644\u062a\u0646\u0641\u064a\u0633\u060c \u0648\u062a\u062a\u0628\u0639 \u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0641\u0631\u0639\u064a\u0629 \u0648\u0627\u0644\u0645\u0634\u062a\u0631\u0643\u0629\u060c \u0648\u062a\u062d\u062f\u064a\u062f \u0645\u062a\u0649 \u062a\u062a\u0637\u0644\u0628 \u0647\u0630\u0647 \u0627\u0644\u062a\u0641\u0627\u0639\u0644\u0627\u062a \u062a\u062d\u0644\u064a\u0644\u064b\u0627 \u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u064b\u0627 \u062e\u0627\u0635\u064b\u0627 \u0628\u0627\u0644\u0645\u0634\u0631\u0648\u0639. \u0627\u0644\u0627\u062a\u0635\u0627\u0644 \u0627\u0644\u0641\u064a\u0632\u064a\u0627\u0626\u064a \u0648\u062d\u062f\u0647 \u0644\u0627 \u064a\u062d\u062f\u062f \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646\u060c \u0648\u0628\u064a\u0627\u0646\u0627\u062a \u0635\u0645\u0627\u0645 \u0648\u0627\u062d\u062f \u0648\u062d\u062f\u0647\u0627 \u0644\u0627 \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u062d\u062f\u062f \u062d\u0627\u0644\u0629 \u0627\u0644\u0636\u063a\u0637 \u0641\u064a \u062c\u0645\u064a\u0639 \u0623\u0646\u062d\u0627\u0621 \u0627\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643.<\/p>\n<p>\u0647\u0630\u0627 \u0627\u0644\u062f\u0644\u064a\u0644 \u064a\u062e\u062a\u0635 \u0628\u0642\u0631\u0627\u0631 \u0639\u0644\u0649 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0646\u0638\u0627\u0645 \u0641\u0642\u0637. \u0633\u0644\u0648\u0643 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u062a\u0641\u0635\u064a\u0644\u064a \u0644\u0644\u0635\u0645\u0627\u0645\u060c \u0648\u062d\u0633\u0627\u0628 \u0627\u0644\u0645\u0642\u0627\u0633\u0627\u062a \u0627\u0644\u0641\u0631\u062f\u064a\u0629 \u0648\u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0645\u0639\u062a\u0645\u062f\u0629\u060c \u0648\u0627\u062e\u062a\u064a\u0627\u0631 \u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0623\u0645\u0627\u0646 \u0627\u0644\u0639\u0627\u0645\u0629\u060c \u0648\u0645\u0646\u0647\u062c\u064a\u0629 \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0623\u0648\u0633\u0639 \u0648\u0641\u0642 API 521 \u062a\u0628\u0642\u0649 \u0641\u064a \u0635\u0641\u062d\u0627\u062a\u0647\u0627 \u0627\u0644\u0645\u062e\u0635\u0635\u0629.<\/p>\n<\/header>\n<section id=\"section-common-header-system-coupling\" aria-labelledby=\"common-header-system-coupling\">\n<h2 id=\"common-header-system-coupling\">\u0644\u0645\u0627\u0630\u0627 \u064a\u063a\u064a\u0631 \u0645\u0634\u0639\u0628 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0645\u0634\u0643\u0644\u0629 \u0635\u0645\u0627\u0645 \u0627\u0644\u062a\u0646\u0641\u064a\u0633<\/h2>\n<p>\u064a\u0645\u0643\u0646 \u0641\u062d\u0635 \u0635\u0645\u0627\u0645 \u0627\u0644\u0623\u0645\u0627\u0646 \u0630\u0648 \u0645\u0633\u0627\u0631 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0633\u062a\u0642\u0644 \u0645\u0642\u0627\u0628\u0644 \u062d\u0627\u0644\u0629 \u0627\u0644\u0636\u063a\u0637 \u0641\u064a \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0645\u0635\u0628 \u0627\u0644\u0645\u062e\u0635\u0635 \u0644\u0630\u0644\u0643 \u0627\u0644\u0645\u0633\u0627\u0631. \u0639\u0646\u062f\u0645\u0627 \u062a\u0641\u0631\u063a \u0639\u062f\u0629 \u0623\u062c\u0647\u0632\u0629 \u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0636\u063a\u0637 \u0641\u064a \u0623\u0646\u0627\u0628\u064a\u0628 \u0645\u062a\u0631\u0627\u0628\u0637\u0629 \u0641\u064a \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0645\u0635\u0628\u060c \u064a\u062a\u063a\u064a\u0631 \u0647\u0630\u0627 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636: \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0639\u062a\u0645\u062f \u0627\u0644\u0636\u063a\u0637 \u0639\u0646\u062f \u0645\u062e\u0631\u062c \u0648\u0627\u062d\u062f \u0639\u0644\u0649 \u0645\u0627 \u064a\u062d\u062f\u062b \u0641\u064a \u0645\u0643\u0627\u0646 \u0622\u062e\u0631 \u0641\u064a \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u0645\u0634\u062a\u0631\u0643.<\/p>\n<h3 id=\"coupled-downstream-system\">\u0645\u0646 \u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0645\u062e\u0631\u062c \u0627\u0644\u0641\u0631\u062f\u064a\u0629 \u0625\u0644\u0649 \u0646\u0638\u0627\u0645 \u0645\u0635\u0628 \u0645\u062a\u0631\u0627\u0628\u0637<\/h3>\n<p>\u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u062f\u0644\u064a\u0644\u060c <strong>\u0645\u0634\u0639\u0628 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0634\u062a\u0631\u0643<\/strong> \u064a\u0639\u0646\u064a \u0623\u0646\u0627\u0628\u064a\u0628 \u0645\u062a\u0631\u0627\u0628\u0637\u0629 \u0641\u064a \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0645\u0635\u0628 \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0633\u062a\u0642\u0628\u0644 \u062a\u062f\u0641\u0642 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0645\u0646 \u0623\u0643\u062b\u0631 \u0645\u0646 \u062c\u0647\u0627\u0632 \u062a\u0646\u0641\u064a\u0633 \u0636\u063a\u0637. \u0647\u0630\u0627 \u0648\u0635\u0641 \u0646\u0638\u0627\u0645\u064a \u0639\u0645\u0644\u064a\u060c \u0648\u0644\u064a\u0633 \u0627\u062f\u0639\u0627\u0621\u064b \u0628\u0623\u0646 \u0627\u0644\u0639\u0628\u0627\u0631\u0629 \u0644\u0647\u0627 \u062a\u0639\u0631\u064a\u0641 \u0645\u0639\u064a\u0627\u0631\u064a \u0639\u0627\u0644\u0645\u064a \u0648\u0627\u062d\u062f.<\/p>\n<p><a href=\"https:\/\/www.tsask.ca\/publication\/pressure-relief-device-common-discharge-header-sizing\/\/\" target=\"_blank\" rel=\"noopener\">\u0625\u0631\u0634\u0627\u062f\u0627\u062a TSASK \u0627\u0644\u0645\u0646\u0634\u0648\u0631\u0629 \u0628\u0634\u0623\u0646 \u0627\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643<\/a> \u062a\u062a\u0646\u0627\u0648\u0644 \u0635\u0631\u0627\u062d\u0629 \u0623\u0646\u0627\u0628\u064a\u0628 \u062a\u0635\u0631\u064a\u0641 \u0623\u062c\u0647\u0632\u0629 \u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u062a\u0631\u0627\u0628\u0637\u0629 \u0645\u0639 \u0623\u062c\u0647\u0632\u0629 \u062a\u0646\u0641\u064a\u0633 \u0623\u062e\u0631\u0649 \u0645\u0646 \u062e\u0644\u0627\u0644 \u0645\u0634\u0639\u0628 \u0645\u0634\u062a\u0631\u0643. \u0636\u0645\u0646 \u0647\u0630\u0627 \u0627\u0644\u0633\u064a\u0627\u0642 \u0627\u0644\u062a\u0646\u0638\u064a\u0645\u064a \u0627\u0644\u0645\u062d\u062f\u062f\u060c \u0627\u0644\u0646\u0642\u0637\u0629 \u0627\u0644\u0645\u0647\u0645\u0629 \u0648\u0627\u0636\u062d\u0629: \u064a\u062c\u0628 \u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0645\u062e\u0627\u0631\u062c \u0627\u0644\u0645\u062a\u0631\u0627\u0628\u0637\u0629 \u0643\u0646\u0638\u0627\u0645 \u0648\u0644\u064a\u0633 \u0643\u062e\u0637\u0648\u0637 \u062a\u0635\u0631\u064a\u0641 \u063a\u064a\u0631 \u0645\u0631\u062a\u0628\u0637\u0629.<\/p>\n<p>\u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629 \u0647\u064a \u0627\u0644\u0627\u0642\u062a\u0631\u0627\u0646. \u0644\u0627 \u064a\u0646\u062a\u0647\u064a \u0627\u0644\u0641\u0631\u0639 \u062a\u062d\u0644\u064a\u0644\u064a\u064b\u0627 \u0639\u0646\u062f \u0641\u0648\u0647\u0629 \u0645\u062e\u0631\u062c \u0627\u0644\u0635\u0645\u0627\u0645\u061b \u0628\u0644 \u064a\u063a\u0630\u064a \u0645\u0633\u0627\u0631\u064b\u0627 \u0633\u0641\u0644\u064a\u064b\u0627 \u0642\u062f \u064a\u062d\u0645\u0644 \u0623\u064a\u0636\u064b\u0627 \u062a\u062f\u0641\u0642\u064b\u0627 \u0623\u0648 \u0636\u063a\u0637\u064b\u0627 \u0645\u0646 \u0645\u0635\u0627\u062f\u0631 \u0623\u062e\u0631\u0649 \u0645\u062a\u0635\u0644\u0629. \u0644\u0630\u0644\u0643 \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0639\u062a\u0645\u062f \u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u062e\u0631\u062c \u0627\u0644\u062a\u064a \u064a\u0631\u0627\u0647\u0627 \u0627\u0644\u0635\u0645\u0627\u0645 \u0639\u0644\u0649 \u0641\u0631\u0639\u0647 \u0627\u0644\u0645\u062d\u0644\u064a\u060c \u0648\u0627\u0644\u0645\u0642\u0637\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0644\u0644\u0645\u062c\u0645\u0639\u060c \u0648\u0645\u0635\u0627\u062f\u0631 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0633\u0641\u0644\u064a\u060c \u0648\u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u062a\u064a \u064a\u062a\u0645 \u062a\u0642\u064a\u064a\u0645\u0647\u0627.<\/p>\n<h3 id=\"one-valve-affects-another-outlet\">\u0643\u064a\u0641 \u064a\u0645\u0643\u0646 \u0644\u062a\u0635\u0631\u064a\u0641 \u0635\u0645\u0627\u0645 \u0648\u0627\u062d\u062f \u0623\u0646 \u064a\u063a\u064a\u0631 \u062d\u0627\u0644\u0629 \u0645\u062e\u0631\u062c \u0635\u0645\u0627\u0645 \u0622\u062e\u0631<\/h3>\n<p><a href=\"https:\/\/dam.bakerhughes.com\/m\/48a8b71d60414af9\/original\/Consolidated-2900-3900-BT-Design-White-Paper-English.pdf\" target=\"_blank\" rel=\"noopener\">\u0625\u0631\u0634\u0627\u062f\u0627\u062a \u0647\u0646\u062f\u0633\u0629 Baker Hughes<\/a> \u062a\u062d\u062f\u062f \u0635\u0645\u0627\u0645\u0627\u062a \u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0623\u062e\u0631\u0649 \u0627\u0644\u0645\u062a\u0635\u0644\u0629 \u0628\u0645\u062c\u0645\u0639 \u0645\u0634\u062a\u0631\u0643 \u0643\u0645\u0635\u062f\u0631 \u0645\u062d\u062a\u0645\u0644 \u0644\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062a\u0631\u0627\u0643\u0628 \u0627\u0644\u0645\u062a\u063a\u064a\u0631. \u0643\u0645\u0627 \u062a\u0644\u0627\u062d\u0638 \u0623\u0646 \u0636\u063a\u0637 \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u062a\u063a\u064a\u0631 \u0648\u0641\u0642\u064b\u0627 \u0644\u0644\u062c\u0647\u0627\u0632 \u0623\u0648 \u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062a\u064a \u062a\u0642\u0648\u0645 \u0628\u0627\u0644\u062a\u0646\u0641\u064a\u0633.<\/p>\n<p>\u0644\u0627 \u064a\u0628\u0631\u0631 \u0630\u0644\u0643 \u0627\u0641\u062a\u0631\u0627\u0636 \u0623\u0646 \u0643\u0644 \u0627\u062a\u0635\u0627\u0644 \u064a\u0631\u0649 \u0646\u0641\u0633 \u0627\u0644\u0636\u063a\u0637\u060c \u0623\u0648 \u0623\u0646 \u0635\u0645\u0627\u0645\u064b\u0627 \u0648\u0627\u062d\u062f\u064b\u0627 \u064a\u0646\u0641\u062b \u064a\u062e\u0644\u0642 \u0627\u0631\u062a\u0641\u0627\u0639\u064b\u0627 \u064a\u0645\u0643\u0646 \u0627\u0644\u062a\u0646\u0628\u0624 \u0628\u0647 \u0641\u064a \u0627\u0644\u0636\u063a\u0637 \u0641\u064a \u0643\u0644 \u0645\u0643\u0627\u0646 \u0641\u064a \u0627\u0644\u0634\u0628\u0643\u0629. \u0625\u0646\u0647 \u064a\u0639\u0646\u064a \u0623\u0646 \u062d\u0627\u0644\u0629 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u0629 \u0647\u064a \u0646\u062a\u064a\u062c\u0629 \u0644\u0644\u0646\u0638\u0627\u0645.<\/p>\n<p>\u0644\u0630\u0644\u0643 \u0641\u0625\u0646 \u0627\u0644\u0633\u0624\u0627\u0644 \u0627\u0644\u062a\u0634\u062e\u064a\u0635\u064a \u0627\u0644\u0639\u0645\u0644\u064a \u0647\u0648:<\/p>\n<ul>\n<li>\u0625\u0630\u0627 \u0628\u062f\u0623 \u062c\u0647\u0627\u0632 \u062a\u0646\u0641\u064a\u0633 \u0622\u062e\u0631 \u0641\u064a \u0627\u0644\u062a\u0635\u0631\u064a\u0641\u060c \u0641\u0647\u0644 \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u062a\u063a\u064a\u0631 \u062d\u0627\u0644\u0629 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0633\u0641\u0644\u064a \u0639\u0646\u062f \u0645\u062e\u0631\u062c \u0647\u0630\u0627 \u0627\u0644\u0635\u0645\u0627\u0645\u061f<\/li>\n<li>\u0625\u0630\u0627 \u0643\u0627\u0646 \u0627\u0644\u062c\u0648\u0627\u0628 \u0646\u0639\u0645\u060c \u0641\u0644\u0627 \u064a\u0645\u0643\u0646 \u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0635\u0645\u0627\u0645 \u0641\u0642\u0637 \u0645\u0646 \u0628\u064a\u0627\u0646\u0627\u062a \u0645\u062e\u0631\u062c\u0647 \u0627\u0644\u0645\u0633\u062a\u0642\u0644\u0629.<\/li>\n<li>\u064a\u062c\u0628 \u0623\u0648\u0644\u0627\u064b \u062a\u062d\u062f\u064a\u062f \u062d\u0627\u0644\u0629 \u0627\u0644\u0646\u0638\u0627\u0645 \u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0630\u0627\u062a \u0627\u0644\u0635\u0644\u0629\u060c \u062b\u0645 \u062a\u0645\u0631\u064a\u0631\u0647\u0627 \u0645\u0631\u0629 \u0623\u062e\u0631\u0649 \u0625\u0644\u0649 \u0641\u062d\u0635 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u062f\u064a.<\/li>\n<\/ul>\n<figure class=\"wp-block-image size-full zobai-figure\" data-image-slot=\"IMG-01\"><img loading=\"lazy\" src=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-01.webp\" alt=\"\u0645\u062e\u0637\u0637 \u0645\u0641\u0627\u0647\u064a\u0645\u064a \u0644\u0639\u062f\u0629 \u0641\u0631\u0648\u0639 \u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0623\u0645\u0627\u0646 \u0645\u062a\u0635\u0644\u0629 \u0628\u0645\u0634\u0639\u0628 \u062a\u0635\u0631\u064a\u0641 \u0645\u0634\u062a\u0631\u0643 \u0645\u0639 \u0638\u0631\u0648\u0641 \u0645\u0646\u0628\u0639 \u0645\u0634\u062a\u0631\u0643\u0629.\" title=\"\u0635\u0645\u0627\u0645\u0627\u062a \u0623\u0645\u0627\u0646 \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0644\u0644\u062a\u0635\u0631\u064a\u0641: \u0641\u062d\u0648\u0635\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0648\u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646 - IMG-01\" width=\"1200\" height=\"900\" class=\"wp-image-56756\" decoding=\"async\" srcset=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-01.webp 1200w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-01-300x225.webp 300w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-01-1024x768.webp 1024w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-01-768x576.webp 768w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-01-16x12.webp 16w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-01-400x300.webp 400w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption>\u064a\u062e\u0644\u0642 \u0645\u062c\u0645\u0639 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0646\u0638\u0627\u0645\u064b\u0627 \u0633\u0641\u0644\u064a\u064b\u0627 \u0645\u0642\u062a\u0631\u0646\u064b\u0627 \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u062d\u0627\u0644\u0627\u062a \u0645\u062e\u0631\u062c \u0645\u0639\u0632\u0648\u0644\u0629.<\/figcaption><\/figure>\n<\/section>\n<section id=\"section-shared-header-back-pressure\" aria-labelledby=\"shared-header-back-pressure\">\n<h2 id=\"shared-header-back-pressure\">\u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062a\u0631\u0627\u0643\u0628 \u0645\u0642\u0627\u0628\u0644 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062a\u0648\u0644\u062f \u0641\u064a \u0645\u062c\u0645\u0639 \u0645\u0634\u062a\u0631\u0643<\/h2>\n<p>\u062a\u0635\u0628\u062d \u0645\u0634\u0643\u0644\u0629 \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0623\u0633\u0647\u0644 \u0641\u064a \u0627\u0644\u062a\u0641\u0643\u064a\u0631 \u0628\u0645\u062c\u0631\u062f \u0641\u0635\u0644 \u0645\u0643\u0648\u0646\u0627\u062a \u0636\u063a\u0637 \u0627\u0644\u0645\u062e\u0631\u062c \u062d\u0633\u0628 \u0627\u0644\u0645\u0635\u062f\u0631 \u0648\u0627\u0644\u062a\u0648\u0642\u064a\u062a. <a href=\"https:\/\/www.iso.org\/obp\/ui?_escaped_fragment_=iso%3Astd%3Aiso%3A4126%3A-7%3Aed-2%3Av1%3Aen\" target=\"_blank\" rel=\"noopener\">ISO 4126-7<\/a> \u064a\u0645\u064a\u0632 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062a\u0631\u0627\u0643\u0628 \u0639\u0646 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0646\u0627\u062a\u062c\u061b \u062a\u0633\u062a\u062e\u062f\u0645 \u0647\u0630\u0647 \u0627\u0644\u0635\u0641\u062d\u0629 \u0647\u0630\u0647 \u0627\u0644\u062a\u0639\u0631\u064a\u0641\u0627\u062a \u0641\u0642\u0637 \u0644\u0634\u0631\u062d \u0622\u0644\u064a\u0629 \u0627\u0644\u0631\u0623\u0633 \u0627\u0644\u0645\u0634\u062a\u0631\u0643. \u062a\u0628\u0642\u0649 \u062a\u0623\u062b\u064a\u0631\u0627\u062a \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u062a\u0641\u0635\u064a\u0644\u064a\u0629 \u0645\u0639 <a href=\"https:\/\/zobai.com\/ar\/engineering\/back-pressure-and-bellows\/\">\u062f\u0644\u064a\u0644 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0648\u0627\u0644\u0645\u0646\u0641\u0627\u062e<\/a>.<\/p>\n<div class=\"zobai-table-scroll\" role=\"region\" aria-label=\"\u0645\u0642\u0627\u0631\u0646\u0629 \u0645\u0643\u0648\u0646\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a\" tabindex=\"0\">\n<table>\n<thead>\n<tr>\n<th scope=\"col\">\u0645\u0643\u0648\u0646 \u0627\u0644\u0636\u063a\u0637<\/th>\n<th scope=\"col\">\u0627\u0644\u0645\u0639\u0646\u0649 \u0627\u0644\u0647\u0646\u062f\u0633\u064a \u0647\u0646\u0627<\/th>\n<th scope=\"col\">\u0633\u0624\u0627\u0644 \u0627\u0644\u0631\u0623\u0633 \u0627\u0644\u0645\u0634\u062a\u0631\u0643<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062a\u0631\u0627\u0643\u0628<\/td>\n<td>\u0636\u063a\u0637 \u0627\u0644\u0645\u062e\u0631\u062c \u0627\u0644\u0645\u0648\u062c\u0648\u062f \u0639\u0646\u062f\u0645\u0627 \u064a\u064f\u0637\u0644\u0628 \u0645\u0646 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0639\u0645\u0644 \u0648\u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0645\u0635\u0627\u062f\u0631 \u0636\u063a\u0637 \u0623\u062e\u0631\u0649 \u0641\u064a \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0641\u0631\u064a\u063a.<\/td>\n<td>\u0645\u0627 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0648\u062c\u0648\u062f \u0628\u0627\u0644\u0641\u0639\u0644 \u0639\u0646\u062f \u0647\u0630\u0627 \u0627\u0644\u0645\u062e\u0631\u062c \u0642\u0628\u0644 \u0623\u0646 \u064a\u0633\u0628\u0628 \u062a\u062f\u0641\u0642 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u062e\u0627\u0635 \u0628\u0647\u0630\u0627 \u0627\u0644\u0635\u0645\u0627\u0645 \u062a\u0623\u062b\u064a\u0631\u0627\u062a \u0645\u0642\u0627\u0648\u0645\u0629 \u0625\u0636\u0627\u0641\u064a\u0629\u061f<\/td>\n<\/tr>\n<tr>\n<td>\u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062a\u0631\u0627\u0643\u0645<\/td>\n<td>\u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u062a\u062f\u0641\u0642 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0639\u0628\u0631 \u0627\u0644\u0635\u0645\u0627\u0645 \u0648\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u0646\u0647\u0627\u0626\u064a.<\/td>\n<td>\u0645\u0627 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0625\u0636\u0627\u0641\u064a \u0639\u0646\u062f \u0627\u0644\u0645\u062e\u0631\u062c \u0627\u0644\u0630\u064a \u064a\u062a\u0637\u0648\u0631 \u0644\u0623\u0646 \u062a\u062f\u0641\u0642 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u064a\u062a\u062d\u0631\u0643 \u0639\u0628\u0631 \u0627\u0644\u0641\u0631\u0639 \u0648\u0627\u0644\u0645\u0633\u0627\u0631 \u0627\u0644\u0646\u0647\u0627\u0626\u064a \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u061f<\/td>\n<\/tr>\n<tr>\n<td>\u062d\u0627\u0644\u0629 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0623\u062b\u0646\u0627\u0621 \u0627\u0644\u062d\u0627\u0644\u0629<\/td>\n<td>\u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u062d\u062a\u0648\u064a \u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u062e\u0631\u062c \u0630\u0627\u062a \u0627\u0644\u0635\u0644\u0629 \u0639\u0644\u0649 \u0645\u0643\u0648\u0646\u0627\u062a \u0645\u062a\u0631\u0627\u0643\u0628\u0629 \u0648\u0646\u0627\u062a\u062c\u0629 \u0645\u0639\u064b\u0627.<\/td>\n<td>\u0645\u0627 \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u064a \u064a\u0648\u0627\u062c\u0647\u0647\u0627 \u0647\u0630\u0627 \u0627\u0644\u0635\u0645\u0627\u0645 \u0641\u0639\u0644\u064a\u064b\u0627 \u0641\u064a \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u062a\u064a \u064a\u062a\u0645 \u0641\u062d\u0635\u0647\u0627\u061f<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<h3 id=\"pressure-present-before-opening\">\u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0643\u0648\u0646 \u0645\u0648\u062c\u0648\u062f\u064b\u0627 \u0628\u0627\u0644\u0641\u0639\u0644 \u0642\u0628\u0644 \u0641\u062a\u062d \u0627\u0644\u0635\u0645\u0627\u0645<\/h3>\n<p>\u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062a\u0631\u0627\u0643\u0628 \u0644\u064a\u0633 \u0645\u062c\u0631\u062f \u0627\u0633\u0645 \u0622\u062e\u0631 \u0644\u0643\u0644 \u0627\u0644\u0636\u063a\u0637 \u0641\u064a \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643. \u0627\u0644\u062a\u0645\u064a\u064a\u0632 \u0627\u0644\u0645\u0641\u064a\u062f \u0647\u0648 \u0623\u0646 \u0627\u0644\u0636\u063a\u0637 \u0645\u0648\u062c\u0648\u062f \u0628\u0627\u0644\u0641\u0639\u0644 \u0639\u0646\u062f \u0627\u0644\u0645\u062e\u0631\u062c \u0639\u0646\u062f\u0645\u0627 \u064a\u064f\u0637\u0644\u0628 \u0645\u0646 \u0630\u0644\u0643 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0639\u0645\u0644\u060c \u0648\u064a\u0623\u062a\u064a \u0645\u0646 \u0645\u0635\u0627\u062f\u0631 \u0636\u063a\u0637 \u0623\u062e\u0631\u0649 \u0641\u064a \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0635\u0631\u064a\u0641.<\/p>\n<p>\u0641\u064a \u0634\u0628\u0643\u0629 \u062a\u0635\u0631\u064a\u0641 \u0645\u0634\u062a\u0631\u0643\u0629\u060c \u064a\u0645\u0643\u0646 \u0644\u0645\u0635\u062f\u0631 \u062a\u0646\u0641\u064a\u0633 \u0622\u062e\u0631 \u0645\u062a\u0635\u0644 \u0623\u0646 \u064a\u0633\u0627\u0647\u0645 \u0641\u064a \u062d\u0627\u0644\u0629 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0646\u0647\u0627\u0626\u064a \u0647\u0630\u0647. \u062a\u0633\u062a\u062e\u062f\u0645 Baker Hughes \u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0628\u0648\u0627\u0633\u0637\u0629 \u0623\u062c\u0647\u0632\u0629 \u062a\u0646\u0641\u064a\u0633 \u0623\u062e\u0631\u0649 \u0643\u0645\u062b\u0627\u0644 \u0639\u0644\u0649 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062a\u0631\u0627\u0643\u0628 \u0627\u0644\u0645\u062a\u063a\u064a\u0631.<\/p>\n<h3 id=\"pressure-developed-by-relieving-flow\">\u0645\u0627 \u064a\u062a\u0637\u0648\u0631 \u0639\u0646\u062f\u0645\u0627 \u064a\u062f\u062e\u0644 \u062a\u062f\u0641\u0642 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0625\u0644\u0649 \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0635\u0631\u064a\u0641<\/h3>\n<p>\u064a\u062a\u0637\u0648\u0631 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0646\u0627\u062a\u062c \u0639\u0646 \u0627\u0644\u062a\u0631\u0627\u0643\u0645 \u0644\u0623\u0646 \u062a\u062f\u0641\u0642 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u064a\u0645\u0631 \u0639\u0628\u0631 \u0627\u0644\u0635\u0645\u0627\u0645 \u0648\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0646\u0647\u0627\u0626\u064a. \u0627\u0644\u0633\u0644\u0633\u0644\u0629 \u0627\u0644\u0633\u0628\u0628\u064a\u0629 \u0647\u064a \u0628\u0627\u0644\u062a\u0627\u0644\u064a:<\/p>\n<ol>\n<li>\u064a\u062e\u0641\u0641 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0636\u063a\u0637\u061b;<\/li>\n<li>\u064a\u062f\u062e\u0644 \u0627\u0644\u062a\u062f\u0641\u0642 \u0625\u0644\u0649 \u0641\u0631\u0639 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u062e\u0627\u0635 \u0628\u0647\u061b;<\/li>\n<li>\u064a\u0633\u062a\u0645\u0631 \u0647\u0630\u0627 \u0627\u0644\u062a\u062f\u0641\u0642 \u0639\u0628\u0631 \u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629\u061b;<\/li>\n<li>\u062a\u062a\u0636\u0645\u0646 \u062d\u0627\u0644\u0629 \u0636\u063a\u0637 \u0627\u0644\u0645\u062e\u0631\u062c \u0627\u0644\u0646\u0627\u062a\u062c\u0629 \u0627\u0644\u0645\u0643\u0648\u0646 \u0627\u0644\u0645\u062a\u0631\u0627\u0643\u0645 \u0627\u0644\u0645\u0631\u062a\u0628\u0637 \u0628\u062a\u062f\u0641\u0642 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0647\u0630\u0627.<\/li>\n<\/ol>\n<p>\u0641\u064a \u0645\u062c\u0645\u0639 \u0645\u0634\u062a\u0631\u0643\u060c \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0645\u062a\u062f \u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629 \u0630\u0627\u062a \u0627\u0644\u0635\u0644\u0629 \u0628\u062a\u0644\u0643 \u0627\u0644\u0639\u0645\u0644\u064a\u0629 \u0625\u0644\u0649 \u0645\u0627 \u0628\u0639\u062f \u0627\u0644\u0641\u0631\u0639 \u0627\u0644\u0645\u062d\u0644\u064a \u0644\u0644\u0635\u0645\u0627\u0645 \u0625\u0644\u0649 \u0623\u0646\u0627\u0628\u064a\u0628 \u0645\u0634\u062a\u0631\u0643\u0629 \u0645\u0639 \u0645\u0635\u0627\u062f\u0631 \u062a\u0646\u0641\u064a\u0633 \u0623\u062e\u0631\u0649. \u064a\u0638\u0644 \u0627\u0646\u062e\u0641\u0627\u0636 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0641\u0639\u0644\u064a \u0648\u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0648\u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u0633\u0645\u0648\u062d \u0628\u0647 \u0645\u0639\u062a\u0645\u062f\u064a\u0646 \u0639\u0644\u0649 \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0648\u0627\u0644\u062c\u0647\u0627\u0632\u061b \u0644\u0627 \u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0623\u064a \u0642\u064a\u0645\u0629 \u0639\u0627\u0645\u0629 \u0647\u0646\u0627.<\/p>\n<h3 id=\"case-dependent-back-pressure\">\u0644\u0645\u0627\u0630\u0627 \u064a\u0639\u062a\u0645\u062f \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0630\u0648 \u0627\u0644\u0635\u0644\u0629 \u0639\u0644\u0649 \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633<\/h3>\n<p>\u0627\u0644\u062a\u0645\u064a\u064a\u0632 \u0627\u0644\u0623\u0643\u062b\u0631 \u0641\u0627\u0626\u062f\u0629 \u0644\u064a\u0633 \u0645\u062c\u0631\u062f \u201c\u0645\u062a\u0631\u0627\u0643\u0628 \u0645\u0642\u0627\u0628\u0644 \u0645\u062a\u0631\u0627\u0643\u0645\u201d. \u0628\u0644 \u0647\u0648 <strong>\u0645\u0635\u0627\u062f\u0631 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0648\u062c\u0648\u062f\u0629 \u0641\u064a \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0647\u0630\u0647<\/strong>.<\/p>\n<p>\u0644\u0643\u0644 \u0635\u0645\u0627\u0645 \u064a\u062a\u0645 \u0641\u062d\u0635\u0647\u060c \u0627\u0637\u0631\u062d \u0633\u0624\u0627\u0644\u064a\u0646 \u0645\u0646\u0641\u0635\u0644\u064a\u0646:<\/p>\n<ul>\n<li><strong>\u0642\u0628\u0644 \u0623\u0646 \u064a\u0633\u0627\u0647\u0645 \u0647\u0630\u0627 \u0627\u0644\u0635\u0645\u0627\u0645 \u0641\u064a \u0627\u0644\u062a\u062f\u0641\u0642:<\/strong> \u0645\u0627 \u0647\u0648 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u0641\u0631\u0648\u0636 \u0628\u0627\u0644\u0641\u0639\u0644 \u0645\u0646 \u0628\u0642\u064a\u0629 \u0627\u0644\u0646\u0638\u0627\u0645\u061f<\/li>\n<li><strong>\u0639\u0646\u062f\u0645\u0627 \u064a\u062a\u0645 \u062a\u062e\u0641\u064a\u0641 \u0627\u0644\u0636\u063a\u0637 \u0628\u0648\u0627\u0633\u0637\u0629 \u0647\u0630\u0627 \u0627\u0644\u0635\u0645\u0627\u0645 \u0648\u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0627\u0644\u0645\u062d\u062a\u0645\u0644\u064a\u0646 \u0627\u0644\u0622\u062e\u0631\u064a\u0646:<\/strong> \u0645\u0627 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0625\u0636\u0627\u0641\u064a \u0627\u0644\u0630\u064a \u064a\u062a\u0637\u0648\u0631 \u0639\u0628\u0631 \u0645\u0633\u0627\u0631\u0627\u062a \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0639\u0645\u0648\u0644 \u0628\u0647\u0627\u061f<\/li>\n<\/ul>\n<p>\u0625\u0630\u0627 \u062a\u063a\u064a\u0631\u062a \u0647\u0630\u0647 \u0627\u0644\u0625\u062c\u0627\u0628\u0627\u062a \u0645\u0646 \u062d\u0627\u0644\u0629 \u0645\u062d\u062a\u0645\u0644\u0629 \u0625\u0644\u0649 \u0623\u062e\u0631\u0649\u060c \u0641\u0644\u0627 \u064a\u0646\u0628\u063a\u064a \u0627\u0633\u062a\u0628\u062f\u0627\u0644 \u0642\u064a\u0645\u0629 \u0636\u063a\u0637 \u062e\u0644\u0641\u064a \u062a\u0639\u0633\u0641\u064a\u0629 \u0648\u0627\u062d\u062f\u0629 \u0644\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0628\u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0646\u0638\u0627\u0645.<\/p>\n<\/section>\n<section id=\"section-simultaneous-relief-case\" aria-labelledby=\"simultaneous-relief-case\">\n<h2 id=\"simultaneous-relief-case\">\u0623\u064a \u0635\u0645\u0627\u0645\u0627\u062a \u0623\u0645\u0627\u0646 \u062a\u0646\u062a\u0645\u064a \u0625\u0644\u0649 \u0646\u0641\u0633 \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u062e\u0641\u064a\u0641 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646\u061f<\/h2>\n<p>\u0627\u0644\u0627\u062a\u0635\u0627\u0644 \u0628\u0646\u0641\u0633 \u0627\u0644\u0645\u0634\u0639\u0628 \u064a\u062d\u062f\u062f \u0627\u062d\u062a\u0645\u0627\u0644\u064a\u0629 \u0627\u0644\u062a\u0641\u0627\u0639\u0644 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u061b \u0648\u0644\u0643\u0646\u0647 \u0644\u0627 \u064a\u062d\u062f\u062f \u0628\u062d\u062f \u0630\u0627\u062a\u0647 \u0627\u0644\u062a\u0632\u0627\u0645\u0646. \u064a\u062c\u0628 \u0628\u0646\u0627\u0621 \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u062e\u0641\u064a\u0641 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646 \u0645\u0646 \u0633\u064a\u0646\u0627\u0631\u064a\u0648 \u0627\u0644\u062a\u062e\u0641\u064a\u0641 \u0648\u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062a\u064a \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0633\u0627\u0647\u0645 \u0628\u0634\u0643\u0644 \u0645\u0648\u062b\u0648\u0642 \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0633\u064a\u0646\u0627\u0631\u064a\u0648.<\/p>\n<h3 id=\"credible-initiating-event\">\u0627\u0628\u062f\u0623 \u0628\u0627\u0644\u062d\u062f\u062b \u0627\u0644\u0645\u0633\u0628\u0628 \u0627\u0644\u0645\u0648\u062b\u0648\u0642<\/h3>\n<p>\u0627\u0644\u0642\u0631\u0627\u0631 \u0627\u0644\u0623\u0648\u0644 \u0644\u064a\u0633 \u0639\u062f\u062f \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0645\u0648\u062c\u0648\u062f\u0629 \u0639\u0644\u0649 \u0634\u0628\u0643\u0629 \u0627\u0644\u062a\u0635\u0631\u064a\u0641. \u0628\u0644 \u0647\u0648 \u0627\u0644\u062d\u062f\u062b \u0623\u0648 \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u062a\u064a \u064a\u062a\u0645 \u062a\u0642\u064a\u064a\u0645\u0647\u0627. \u0641\u0642\u0637 \u0628\u0639\u062f \u0630\u0644\u0643 \u064a\u0645\u0643\u0646 \u0644\u0644\u0645\u0647\u0646\u062f\u0633 \u062a\u062d\u062f\u064a\u062f \u0623\u064a \u0623\u062c\u0647\u0632\u0629 \u062a\u062e\u0641\u064a\u0641 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u062a\u0635\u0644\u0629 \u0647\u064a \u0645\u0633\u0627\u0647\u0645\u0648\u0646 \u0645\u0648\u062b\u0648\u0642\u0648\u0646 \u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u062d\u0627\u0644\u0629.<\/p>\n<p>\u0627\u0644\u0645\u0646\u0647\u062c\u064a\u0629 \u0627\u0644\u0623\u0648\u0633\u0639 \u0644\u062a\u062d\u062f\u064a\u062f \u0633\u064a\u0646\u0627\u0631\u064a\u0648\u0647\u0627\u062a \u0627\u0644\u062a\u062e\u0641\u064a\u0641 \u062a\u0646\u062a\u0645\u064a \u0625\u0644\u0649 <a href=\"https:\/\/zobai.com\/ar\/standards\/api-521-pressure-relief-systems\/\">\u062f\u0644\u064a\u0644 \u0623\u0646\u0638\u0645\u0629 \u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0636\u063a\u0637 API 521<\/a>. \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0647\u0630\u0647 \u0627\u0644\u0645\u0642\u0627\u0644\u0629\u060c \u0641\u0625\u0646 \u0627\u0644\u0645\u062a\u0637\u0644\u0628 \u0639\u0644\u0649 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0646\u0638\u0627\u0645 \u0623\u0636\u064a\u0642: \u064a\u062c\u0628 \u0623\u0646 \u064a\u0633\u062a\u062e\u062f\u0645 \u062d\u0633\u0627\u0628 \u0623\u0648 \u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u062d\u0627\u0644\u0629 \u062a\u062e\u0641\u064a\u0641 \u0645\u062d\u062f\u062f\u0629 \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0645\u062c\u0645\u0648\u0639\u0629 \u063a\u064a\u0631 \u0645\u062d\u062f\u062f\u0629 \u0645\u0646 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0645\u062a\u0635\u0644\u0629.<\/p>\n<h3 id=\"credible-contributors-vs-connected-valves\">\u0627\u0641\u0635\u0644 \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646\u064a\u0646 \u0639\u0646 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0645\u062a\u0635\u0644\u0629 \u0641\u0642\u0637<\/h3>\n<p><a href=\"https:\/\/www.tsask.ca\/publication\/pressure-relief-device-common-discharge-header-sizing\/\/\" target=\"_blank\" rel=\"noopener\">\u0625\u0631\u0634\u0627\u062f\u0627\u062a TSASK \u0644\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643<\/a> \u064a\u0648\u0641\u0631 \u0645\u062b\u0627\u0644\u0627\u064b \u0645\u0641\u064a\u062f\u0627\u064b \u0645\u062d\u062f\u062f \u0627\u0644\u0646\u0637\u0627\u0642. \u0648\u0647\u0648 \u064a\u062f\u0631\u0643 \u0623\u0646 \u0623\u0643\u062b\u0631 \u0645\u0646 \u062c\u0647\u0627\u0632 \u062a\u0646\u0641\u064a\u0633 \u0636\u063a\u0637 \u0648\u0627\u062d\u062f \u0642\u062f \u064a\u0642\u0648\u0645 \u0628\u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0648\u064a\u0634\u064a\u0631 \u0625\u0644\u0649 \u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062d\u062f\u062f\u0629 \u0628\u0648\u0636\u0648\u062d. \u0648\u0641\u064a \u0645\u0646\u0627\u0642\u0634\u062a\u0647 \u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u062d\u0631\u064a\u0642\u060c \u064a\u062f\u0639\u0648 \u0623\u064a\u0636\u0627\u064b \u0625\u0644\u0649 \u0627\u0644\u062d\u0643\u0645 \u0627\u0644\u0647\u0646\u062f\u0633\u064a \u062d\u0648\u0644 \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0625\u0636\u0627\u0641\u064a\u0629 \u0633\u062a\u0642\u0648\u0645 \u0628\u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0628\u0634\u0643\u0644 \u0648\u0627\u0642\u0639\u064a.<\/p>\n<p>\u0644\u0627 \u064a\u0646\u0628\u063a\u064a \u062a\u062d\u0648\u064a\u0644 \u0647\u0630\u0627 \u0627\u0644\u062a\u0648\u062c\u064a\u0647 \u0627\u0644\u062e\u0627\u0635 \u0628\u0627\u0644\u0648\u0644\u0627\u064a\u0629 \u0627\u0644\u0642\u0636\u0627\u0626\u064a\u0629 \u0625\u0644\u0649 \u0642\u0627\u0639\u062f\u0629 \u0639\u0627\u0644\u0645\u064a\u0629 \u0644\u0644\u062a\u0632\u0627\u0645\u0646. \u0627\u0644\u0645\u0646\u0637\u0642 \u0627\u0644\u0647\u0646\u062f\u0633\u064a \u0627\u0644\u0642\u0627\u0628\u0644 \u0644\u0644\u0646\u0642\u0644 \u0647\u0648:<\/p>\n<ol>\n<li>\u062d\u062f\u062f \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633.<\/li>\n<li>\u0642\u0645 \u0628\u0625\u062f\u0631\u0627\u062c \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u0645\u062a\u0635\u0644\u0629 \u0628\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0641\u0631\u064a\u063a \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0630\u064a \u0627\u0644\u0635\u0644\u0629.<\/li>\n<li>\u062d\u062f\u062f \u0623\u064a \u0645\u0646 \u062a\u0644\u0643 \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0633\u0627\u0647\u0645 \u0628\u0634\u0643\u0644 \u0645\u0648\u062b\u0648\u0642 \u0641\u064a \u062a\u0644\u0643 \u0627\u0644\u062d\u0627\u0644\u0629.<\/li>\n<li>\u0627\u0633\u062a\u0628\u0639\u062f \u062c\u0647\u0627\u0632\u0627\u064b \u0645\u0646 \u062a\u0644\u0643 \u0627\u0644\u062d\u0627\u0644\u0629 \u0641\u0642\u0637 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0623\u0633\u0627\u0633 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0644\u0644\u0645\u0634\u0631\u0648\u0639 \u064a\u062f\u0639\u0645 \u0627\u0644\u0627\u0633\u062a\u0628\u0639\u0627\u062f\u060c \u0648\u0644\u064a\u0633 \u0628\u0628\u0633\u0627\u0637\u0629 \u0644\u0623\u0646 \u062a\u0636\u0645\u064a\u0646\u0647 \u063a\u064a\u0631 \u0645\u0631\u064a\u062d.<\/li>\n<li>\u0627\u0646\u0642\u0644 \u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0627\u0644\u0646\u0627\u062a\u062c\u0629 \u0625\u0644\u0649 \u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0631\u0623\u0633 \u0627\u0644\u0645\u0634\u062a\u0631\u0643.<\/li>\n<\/ol>\n<h3 id=\"all-valves-not-universal-rule\">\u0644\u0645\u0627\u0630\u0627 \u201c\u0625\u0636\u0627\u0641\u0629 \u0643\u0644 \u0635\u0645\u0627\u0645\u201d \u0644\u064a\u0633\u062a \u0642\u0627\u0639\u062f\u0629 \u0639\u0627\u0644\u0645\u064a\u0629<\/h3>\n<p>\u0627\u0644\u062c\u0645\u0639 \u0627\u0644\u062a\u0644\u0642\u0627\u0626\u064a \u0644\u0643\u0644 \u0635\u0645\u0627\u0645 \u0645\u062a\u0635\u0644 \u063a\u064a\u0631 \u0645\u062f\u0639\u0648\u0645 \u0643\u0642\u0627\u0639\u062f\u0629 \u0639\u0627\u0644\u0645\u064a\u0629 \u0628\u0627\u0644\u0623\u062f\u0644\u0629 \u0627\u0644\u0645\u062c\u0645\u062f\u0629. \u0648\u0643\u0630\u0644\u0643 \u0627\u0644\u0627\u062e\u062a\u0635\u0627\u0631 \u0627\u0644\u0645\u0639\u0627\u0643\u0633 \u0644\u0627\u0641\u062a\u0631\u0627\u0636 \u0623\u0646 \u0635\u0645\u0627\u0645\u0627\u064b \u0648\u0627\u062d\u062f\u0627\u064b \u0641\u0642\u0637 \u0647\u0648 \u0627\u0644\u0645\u0647\u0645.<\/p>\n<p>\u0641\u062d\u0635 \u0627\u0644\u0641\u0631\u064a\u0642 \u0627\u0644\u0623\u062d\u0645\u0631 \u0627\u0644\u0645\u0641\u064a\u062f \u0647\u0648 \u062a\u062d\u062f\u064a \u0643\u0644\u0627 \u0627\u0644\u0637\u0631\u0641\u064a\u0646:<\/p>\n<div class=\"zobai-table-scroll\" role=\"region\" aria-label=\"\u0641\u062d\u0635 \u0627\u0641\u062a\u0631\u0627\u0636 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646\" tabindex=\"0\">\n<table>\n<thead>\n<tr>\n<th scope=\"col\">\u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636<\/th>\n<th scope=\"col\">\u0627\u0644\u0633\u0624\u0627\u0644 \u0627\u0644\u0630\u064a \u064a\u062c\u0628 \u0627\u0644\u0625\u062c\u0627\u0628\u0629 \u0639\u0644\u064a\u0647<\/th>\n<th scope=\"col\">\u0627\u0644\u0625\u062c\u0631\u0627\u0621 \u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0627\u0644\u0625\u062c\u0627\u0628\u0629 \u063a\u064a\u0631 \u0645\u0639\u0631\u0648\u0641\u0629<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u064a\u0645\u0643\u0646 \u0644\u0635\u0645\u0627\u0645 \u0648\u0627\u062d\u062f \u0645\u062a\u0635\u0644 \u0641\u0642\u0637 \u0623\u0646 \u064a\u0646\u0641\u0651\u0633<\/td>\n<td>\u0645\u0627 \u0633\u064a\u0646\u0627\u0631\u064a\u0648 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0644\u0644\u0645\u0634\u0631\u0648\u0639 \u0627\u0644\u0630\u064a \u064a\u062b\u0628\u062a \u0623\u0646 \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u0623\u062e\u0631\u0649 \u0627\u0644\u0645\u062a\u0635\u0644\u0629 \u0644\u064a\u0633\u062a \u0645\u0633\u0627\u0647\u0645\u0627\u062a \u0645\u0648\u062b\u0648\u0642\u0629\u061f<\/td>\n<td>\u0623\u0628\u0642\u0650 \u0633\u0624\u0627\u0644 \u0627\u0644\u062a\u0632\u0627\u0645\u0646 \u0645\u0641\u062a\u0648\u062d\u064b\u0627.<\/td>\n<\/tr>\n<tr>\n<td>\u0643\u0644 \u0635\u0645\u0627\u0645 \u0645\u062a\u0635\u0644 \u064a\u0646\u0641\u0651\u0633 \u0641\u064a \u0646\u0641\u0633 \u0627\u0644\u0648\u0642\u062a<\/td>\n<td>\u0645\u0627 \u0627\u0644\u062d\u062f\u062b \u0627\u0644\u0645\u0633\u0628\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0623\u0648 \u0623\u0633\u0627\u0633 \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0627\u0644\u0630\u064a \u064a\u062c\u0639\u0644\u0647\u0627 \u062c\u0645\u064a\u0639\u064b\u0627 \u0645\u0633\u0627\u0647\u0645\u0627\u062a \u0645\u0648\u062b\u0648\u0642\u0629\u061f<\/td>\n<td>\u0644\u0627 \u062a\u0639\u0627\u0645\u0644 \u0627\u0644\u0627\u062a\u0635\u0627\u0644 \u0627\u0644\u0641\u064a\u0632\u064a\u0627\u0626\u064a \u0648\u062d\u062f\u0647 \u0643\u062f\u0644\u064a\u0644.<\/td>\n<\/tr>\n<tr>\n<td>\u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0633\u0627\u0628\u0642\u0629 \u0644\u0627 \u062a\u0632\u0627\u0644 \u062d\u0627\u0643\u0645\u0629<\/td>\n<td>\u0647\u0644 \u0627\u0644\u0633\u064a\u0646\u0627\u0631\u064a\u0648 \u0627\u0644\u062d\u0627\u0644\u064a \u0644\u0647 \u0646\u0641\u0633 \u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0648\u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629\u061f<\/td>\n<td>\u0623\u0639\u062f \u062a\u0623\u0633\u064a\u0633 \u0627\u0644\u062d\u0627\u0644\u0629 \u0642\u0628\u0644 \u0625\u0639\u0627\u062f\u0629 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0646\u062a\u064a\u062c\u0629.<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<p>\u0623\u0633\u0627\u0633 \u0627\u0644\u062a\u062f\u0641\u0642 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a \u0644\u0647\u0624\u0644\u0627\u0621 \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u064a\u062c\u0628 \u0623\u0646 \u064a\u0623\u062a\u064a \u0645\u0646 \u0623\u0633\u0627\u0633 \u062a\u0635\u0645\u064a\u0645 \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0644\u0644\u0645\u0634\u0631\u0648\u0639 \u0627\u0644\u0645\u0639\u0645\u0648\u0644 \u0628\u0647. \u0644\u0627 \u064a\u064f\u062d\u062f\u062f \u0647\u0646\u0627 \u0623\u064a \u0623\u0633\u0627\u0633 \u0648\u0627\u062d\u062f \u0644\u0644\u0633\u0639\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u0623\u0648 \u0627\u0644\u0645\u0635\u062f\u0642\u0629 \u0623\u0648 \u0627\u0644\u0645\u0642\u062f\u0631\u0629 \u0639\u0644\u0649 \u0623\u0646\u0647 \u0635\u062d\u064a\u062d \u0639\u0627\u0644\u0645\u064a\u064b\u0627.<\/p>\n<figure class=\"wp-block-image size-full zobai-figure\" data-image-slot=\"IMG-02\"><img loading=\"lazy\" src=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-02.webp\" alt=\"\u0645\u0635\u0641\u0648\u0641\u0629 \u0646\u0648\u0639\u064a\u0629 \u0644\u0633\u064a\u0646\u0627\u0631\u064a\u0648 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646 \u062a\u064f\u0638\u0647\u0631 \u062a\u0631\u0643\u064a\u0628\u0627\u062a \u0645\u062e\u062a\u0644\u0641\u0629 \u0645\u0646 \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0627\u0644\u0645\u062d\u062a\u0645\u0644\u064a\u0646 \u0641\u064a \u0645\u062c\u0645\u0639 \u0645\u0634\u062a\u0631\u0643.\" title=\"\u0635\u0645\u0627\u0645\u0627\u062a \u0623\u0645\u0627\u0646 \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0644\u0644\u062a\u0635\u0631\u064a\u0641: \u0641\u062d\u0648\u0635\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0648\u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646 - IMG-02\" width=\"1200\" height=\"900\" class=\"wp-image-56757\" decoding=\"async\" srcset=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-02.webp 1200w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-02-300x225.webp 300w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-02-1024x768.webp 1024w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-02-768x576.webp 768w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-02-16x12.webp 16w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-02-400x300.webp 400w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption>\u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646 \u062a\u0628\u062f\u0623 \u0645\u0646 \u0627\u0644\u0633\u064a\u0646\u0627\u0631\u064a\u0648 \u0627\u0644\u0645\u062d\u062f\u062f\u061b \u0627\u0644\u0627\u062a\u0635\u0627\u0644 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0648\u062d\u062f\u0647 \u0644\u0627 \u064a\u062b\u0628\u062a \u0627\u0644\u062a\u0632\u0627\u0645\u0646.<\/figcaption><\/figure>\n<\/section>\n<section id=\"section-combined-discharge-review\" aria-labelledby=\"combined-discharge-review\">\n<h2 id=\"combined-discharge-review\">\u0643\u064a\u0641\u064a\u0629 \u0645\u0631\u0627\u062c\u0639\u0629 \u062d\u0627\u0644\u0629 \u062a\u0635\u0631\u064a\u0641 \u0645\u0634\u062a\u0631\u0643\u0629 \u062f\u0648\u0646 \u0627\u0644\u062e\u0644\u0637 \u0628\u064a\u0646\u0647\u0627 \u0648\u0628\u064a\u0646 \u062d\u0633\u0627\u0628 \u0645\u0642\u0627\u0633\u0627\u062a \u0635\u0645\u0627\u0645 \u0627\u0644\u0623\u0645\u0627\u0646<\/h2>\n<p>\u0628\u0645\u062c\u0631\u062f \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0627\u0644\u0645\u0639\u0642\u0648\u0644\u064a\u0646\u060c \u064a\u0643\u0648\u0646 \u0627\u0644\u063a\u0631\u0636 \u0645\u0646 \u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0647\u0648 \u062a\u062d\u062f\u064a\u062f \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u0646\u0627\u062a\u062c\u0629 \u0641\u064a \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0645\u0635\u0628 \u0644\u062a\u0644\u0643 \u0627\u0644\u062d\u0627\u0644\u0629. \u0625\u0646\u0647 \u0644\u064a\u0633 \u0642\u0631\u0627\u0631\u064b\u0627 \u0628\u0634\u0623\u0646 \u0646\u0648\u0639 \u0627\u0644\u0635\u0645\u0627\u0645 \u0628\u0639\u062f\u060c \u0648\u0644\u0627 \u064a\u062d\u0644 \u0645\u062d\u0644 \u062d\u0633\u0627\u0628 \u0645\u0642\u0627\u0633\u0627\u062a \u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0623\u0645\u0627\u0646 \u0627\u0644\u0641\u0631\u062f\u064a\u0629.<\/p>\n<h3 id=\"contributors-and-flow-basis\">\u062a\u0623\u0643\u064a\u062f \u0623\u0633\u0627\u0633 \u0627\u0644\u062a\u062f\u0641\u0642 \u0627\u0644\u0645\u0639\u0645\u0648\u0644 \u0628\u0647 \u0641\u064a \u0627\u0644\u0645\u0634\u0631\u0648\u0639<\/h3>\n<p>\u062a\u0623\u062a\u064a \u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0645\u0646 \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062d\u062f\u062f\u0629. \u064a\u062c\u0628 \u0628\u0639\u062f \u0630\u0644\u0643 \u062a\u0623\u0643\u064a\u062f \u0623\u0633\u0627\u0633 \u0627\u0644\u0625\u062f\u062e\u0627\u0644 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a \u0644\u0647\u0624\u0644\u0627\u0621 \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0645\u0646 \u0623\u0633\u0627\u0633 \u062a\u0635\u0645\u064a\u0645 \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u062d\u0627\u0643\u0645 \u0641\u064a \u0627\u0644\u0645\u0634\u0631\u0648\u0639.<\/p>\n<p>\u0645\u0639\u062f\u0644 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u060c \u0648\u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0645\u0642\u062f\u0631\u0629\u060c \u0648\u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0645\u0639\u062a\u0645\u062f\u0629 \u0644\u064a\u0633\u062a \u0645\u0635\u0637\u0644\u062d\u0627\u062a \u064a\u0645\u0643\u0646 \u0628\u0628\u0633\u0627\u0637\u0629 \u0627\u0633\u062a\u0628\u062f\u0627\u0644\u0647\u0627 \u0628\u0628\u0639\u0636\u0647\u0627 \u0627\u0644\u0628\u0639\u0636\u060c \u0648\u0627\u0644\u0623\u062f\u0644\u0629 \u0627\u0644\u0645\u062c\u0645\u062f\u0629 \u0644\u0627 \u062a\u062b\u0628\u062a \u0623\u064a\u064b\u0627 \u0645\u0646\u0647\u0627 \u0643\u0623\u0633\u0627\u0633 \u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a \u0639\u0627\u0644\u0645\u064a \u0644\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643.<\/p>\n<p>\u064a\u0638\u0644 \u062d\u0633\u0627\u0628 \u0645\u0642\u0627\u0633\u0627\u062a \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0641\u0631\u062f\u064a\u060c \u0648\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0641\u062a\u062d\u0629\u060c \u0648\u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0645\u0639\u062a\u0645\u062f\u0629 \u0636\u0645\u0646 <a href=\"https:\/\/zobai.com\/ar\/blog\/safety-valve-sizing-and-certified-relieving-capacity-guide\/\">\u062f\u0644\u064a\u0644 \u062d\u0633\u0627\u0628 \u0645\u0642\u0627\u0633\u0627\u062a \u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0623\u0645\u0627\u0646 \u0648\u0633\u0639\u0629 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0639\u062a\u0645\u062f\u0629<\/a>.<\/p>\n<h3 id=\"branch-shared-resistance-boundary\">\u062a\u062a\u0628\u0639 \u0645\u0633\u0627\u0631\u0627\u062a \u0627\u0644\u0641\u0631\u0648\u0639\u060c \u0648\u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u0629\u060c \u0648\u0627\u0644\u062d\u062f\u0648\u062f \u0641\u064a \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0645\u0635\u0628<\/h3>\n<p>\u0627\u0644\u0645\u0647\u0645\u0629 \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u0647\u064a \u062a\u062d\u062f\u064a\u062f \u0645\u0633\u0627\u0631 \u062a\u0635\u0631\u064a\u0641 \u0643\u0644 \u0645\u0633\u0627\u0647\u0645 \u0645\u0639\u0642\u0648\u0644. \u064a\u062c\u0628 \u0623\u0646 \u062a\u0645\u064a\u0632 \u0627\u0644\u0645\u0631\u0627\u062c\u0639\u0629 \u0628\u064a\u0646 \u062b\u0644\u0627\u062b\u0629 \u0639\u0646\u0627\u0635\u0631 \u0641\u064a \u0627\u0644\u0646\u0638\u0627\u0645:<\/p>\n<ul>\n<li><strong>\u0645\u0633\u0627\u0631 \u0627\u0644\u0641\u0631\u0639 \u0627\u0644\u0645\u062d\u0644\u064a:<\/strong> \u0627\u0644\u0645\u0633\u0627\u0631 \u0641\u064a \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0645\u0635\u0628 \u0627\u0644\u062e\u0627\u0635 \u0628\u062c\u0647\u0627\u0632 \u062a\u0646\u0641\u064a\u0633 \u0648\u0627\u062d\u062f \u0642\u0628\u0644 \u0623\u0646 \u064a\u0646\u0636\u0645 \u0625\u0644\u0649 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u0629.<\/li>\n<li><strong>\u0645\u0633\u0627\u0631 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0634\u062a\u0631\u0643:<\/strong> \u0627\u0644\u062c\u0632\u0621 \u0645\u0646 \u0627\u0644\u0634\u0628\u0643\u0629 \u0627\u0644\u0633\u0641\u0644\u064a\u0629 \u0627\u0644\u0630\u064a \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0645\u0631 \u0645\u0646 \u062e\u0644\u0627\u0644\u0647 \u0627\u0644\u062a\u062f\u0641\u0642 \u0645\u0646 \u0623\u0643\u062b\u0631 \u0645\u0646 \u0645\u0633\u0627\u0647\u0645 \u0645\u0639\u0642\u0648\u0644.<\/li>\n<li><strong>\u0627\u0644\u062d\u062f \u0627\u0644\u0633\u0641\u0644\u064a \u0623\u0648 \u0645\u0635\u062f\u0631 \u0627\u0644\u0636\u063a\u0637:<\/strong> \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u062e\u0627\u0631\u062c\u064a\u0629 \u0644\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u064a \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0641\u0631\u0636 \u0636\u063a\u0637\u064b\u0627 \u0645\u0631\u062a\u062f\u064b\u0627 \u0625\u0644\u0649 \u0634\u0628\u0643\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.iso.org\/obp\/ui?_escaped_fragment_=iso%3Astd%3Aiso%3A4126%3A-7%3Aed-2%3Av1%3Aen\" target=\"_blank\" rel=\"noopener\">ISO 4126-7<\/a> \u064a\u062f\u0639\u0645 \u0627\u0644\u062a\u0645\u064a\u064a\u0632 \u0627\u0644\u0633\u0628\u0628\u064a \u0627\u0644\u0623\u0633\u0627\u0633\u064a: \u064a\u0646\u0634\u0623 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062a\u0631\u0627\u0643\u0645 \u0645\u0646 \u0627\u0644\u062a\u062f\u0641\u0642 \u0639\u0628\u0631 \u0627\u0644\u0635\u0645\u0627\u0645 \u0648\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0635\u0631\u064a\u0641\u060c \u0628\u064a\u0646\u0645\u0627 \u064a\u0646\u0634\u0623 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062a\u0631\u0627\u0643\u0628 \u0645\u0646 \u0645\u0635\u0627\u062f\u0631 \u0636\u063a\u0637 \u0623\u062e\u0631\u0649 \u0641\u064a \u0630\u0644\u0643 \u0627\u0644\u0646\u0638\u0627\u0645.<\/p>\n<p>\u064a\u064f\u0639\u062f \u0647\u0630\u0627 \u0627\u0644\u062a\u0645\u064a\u064a\u0632 \u0628\u064a\u0646 \u0627\u0644\u0641\u0631\u0639 \u0627\u0644\u0645\u0646\u0641\u0635\u0644 \u0648\u0627\u0644\u0645\u0633\u0627\u0631 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0645\u0647\u0645\u064b\u0627 \u0644\u0623\u0646 \u0627\u0644\u0635\u0645\u0627\u0645 \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u062a\u0623\u062b\u0631 \u0628\u0645\u0633\u0627\u0631 \u062a\u0635\u0631\u064a\u0641\u0647 \u0627\u0644\u062e\u0627\u0635 \u0648\u0628\u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u062a\u0648\u0644\u062f \u0641\u064a \u0645\u0643\u0627\u0646 \u0622\u062e\u0631 \u0645\u0646 \u0627\u0644\u0634\u0628\u0643\u0629 \u0627\u0644\u0645\u062a\u0635\u0644\u0629. \u0625\u0646 \u0627\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0646\u0638\u0627\u0645 \u0627\u0644\u0645\u062e\u0631\u062c \u0628\u0627\u0644\u0643\u0627\u0645\u0644 \u0643\u0645\u0642\u0627\u0648\u0645\u0629 \u0648\u0627\u062d\u062f\u0629 \u063a\u064a\u0631 \u0645\u062a\u0645\u0627\u064a\u0632\u0629 \u0642\u062f \u064a\u062e\u0641\u064a \u0645\u0635\u062f\u0631 \u0647\u0630\u0627 \u0627\u0644\u062a\u0641\u0627\u0639\u0644.<\/p>\n<figure class=\"wp-block-image size-full zobai-figure\" data-image-slot=\"IMG-03\"><img loading=\"lazy\" src=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-03.webp\" alt=\"\u0645\u062e\u0637\u0637 \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u064a\u0628\u0631\u0632 \u0645\u0633\u0627\u0631\u0627\u062a \u0627\u0644\u0641\u0631\u0648\u0639 \u0648\u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u0629 \u0641\u064a \u0627\u062a\u062c\u0627\u0647 \u0627\u0644\u0645\u0635\u0628 \u0648\u062d\u062f\u0648\u062f \u0627\u0644\u0636\u063a\u0637 \u0641\u064a \u0627\u0644\u0645\u0635\u0628.\" title=\"\u0635\u0645\u0627\u0645\u0627\u062a \u0623\u0645\u0627\u0646 \u0639\u0644\u0649 \u0645\u062c\u0645\u0639 \u062a\u0635\u0631\u064a\u0641 \u0645\u0634\u062a\u0631\u0643: \u0641\u062d\u0648\u0635\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0648\u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646 - IMG-03\" width=\"1200\" height=\"900\" class=\"wp-image-56758\" decoding=\"async\" srcset=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-03.webp 1200w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-03-300x225.webp 300w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-03-1024x768.webp 1024w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-03-768x576.webp 768w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-03-16x12.webp 16w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-03-400x300.webp 400w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption>\u064a\u062c\u0628 \u0623\u0646 \u064a\u0631\u0627\u0639\u064a \u0641\u062d\u0635 \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0643\u0644\u0627\u064b \u0645\u0646 \u0627\u0644\u0645\u0633\u0627\u0631\u0627\u062a \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0643\u0644 \u0641\u0631\u0639 \u0648\u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u0629 \u0641\u064a \u0627\u0644\u0645\u0635\u0628.<\/figcaption><\/figure>\n<h3 id=\"outlet-pressure-condition-per-valve\">\u062d\u062f\u062f \u062d\u0627\u0644\u0629 \u0636\u063a\u0637 \u0627\u0644\u0645\u062e\u0631\u062c \u0630\u0627\u062a \u0627\u0644\u0635\u0644\u0629 \u0628\u0643\u0644 \u0635\u0645\u0627\u0645<\/h3>\n<p>\u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0639\u0644\u0649 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u064a \u062a\u0647\u0645 \u0641\u062d\u0635 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u062f\u064a \u0647\u064a \u062d\u0627\u0644\u0629 \u0636\u063a\u0637 \u0627\u0644\u0645\u062e\u0631\u062c \u0627\u0644\u0645\u0637\u0628\u0642\u0629 \u0639\u0646\u062f \u0648\u0635\u0644\u0629 \u0630\u0644\u0643 \u0627\u0644\u0635\u0645\u0627\u0645 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0642\u064a\u062f \u0627\u0644\u062f\u0631\u0627\u0633\u0629.<\/p>\n<p>\u062a\u0633\u0644\u0633\u0644 \u0645\u0631\u0627\u062c\u0639\u0629 \u0639\u0645\u0644\u064a \u0647\u0648:<\/p>\n<ol>\n<li>\u062a\u062b\u0628\u064a\u062a \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633\u061b;<\/li>\n<li>\u062a\u062b\u0628\u064a\u062a \u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u0645\u0635\u0627\u062f\u0631 \u0627\u0644\u0645\u062d\u062a\u0645\u0644\u0629 \u0627\u0644\u0645\u0648\u062b\u0648\u0642\u0629\u061b;<\/li>\n<li>\u062a\u0623\u0643\u064a\u062f \u0623\u0633\u0627\u0633 \u0627\u0644\u062a\u062f\u0641\u0642 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0645\u0646 \u0627\u0644\u0645\u0634\u0631\u0648\u0639\u061b;<\/li>\n<li>\u062a\u062a\u0628\u0639 \u0643\u0644 \u0645\u0635\u062f\u0631 \u0639\u0628\u0631 \u0641\u0631\u0639\u0647 \u0627\u0644\u0645\u062d\u0644\u064a \u0648\u0645\u0633\u0627\u0631 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u061b;<\/li>\n<li>\u062a\u0636\u0645\u064a\u0646 \u062d\u062f \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0637\u0628\u0642 \u0641\u064a \u0627\u0644\u0645\u0635\u0628 \u0623\u0648 \u0645\u0635\u0627\u062f\u0631 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0623\u062e\u0631\u0649\u061b;<\/li>\n<li>\u062a\u062d\u062f\u064a\u062f \u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u062e\u0631\u062c \u0630\u0627\u062a \u0627\u0644\u0635\u0644\u0629 \u0628\u0643\u0644 \u0648\u0635\u0644\u0629 \u0635\u0645\u0627\u0645\u061b \u0648<\/li>\n<li>\u0639\u0646\u062f\u0647\u0627 \u0641\u0642\u0637 \u0642\u0627\u0631\u0646 \u0647\u0630\u0627 \u0627\u0644\u0634\u0631\u0637 \u0645\u0639 \u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0645\u0639\u0646\u064a.<\/li>\n<\/ol>\n<p>\u0644\u0627 \u064a\u0646\u0628\u063a\u064a \u0627\u0641\u062a\u0631\u0627\u0636 \u0623\u0646 \u0646\u0642\u0627\u0637 \u0627\u0644\u0627\u062a\u0635\u0627\u0644 \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629 \u0644\u0647\u0627 \u0638\u0631\u0648\u0641 \u0645\u062a\u0637\u0627\u0628\u0642\u0629 \u0645\u0627 \u0644\u0645 \u064a\u062b\u0628\u062a \u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0647\u0630\u0627 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636.<\/p>\n<h3 id=\"route-individual-valve-checks\">\u0623\u0628\u0642\u0650 \u0641\u062d\u0648\u0635\u0627\u062a \u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0641\u0631\u062f\u064a\u0629 \u0648\u0646\u0648\u0639 \u0627\u0644\u0635\u0645\u0627\u0645 \u0644\u062f\u0649 \u0627\u0644\u062c\u0647\u0627\u062a \u0627\u0644\u0645\u0633\u0624\u0648\u0644\u0629 \u0639\u0646\u0647\u0627 \u0627\u0644\u062d\u0627\u0644\u064a\u0629<\/h3>\n<p>\u0643\u0641\u0627\u064a\u0629 \u0627\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0648\u0643\u0641\u0627\u064a\u0629 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u062f\u064a \u0645\u062a\u0631\u0627\u0628\u0637\u062a\u0627\u0646\u060c \u0644\u0643\u0646\u0647\u0645\u0627 \u0644\u064a\u0633\u062a\u0627 \u0627\u0644\u0642\u0631\u0627\u0631 \u0646\u0641\u0633\u0647.<\/p>\n<p>\u0645\u0639\u0627\u0645\u0644 <a href=\"https:\/\/zobai.com\/ar\/blog\/safety-valve-sizing-and-certified-relieving-capacity-guide\/\">\u062f\u0644\u064a\u0644 \u062d\u0633\u0627\u0628 \u0627\u0644\u0645\u0642\u0627\u0633\u0627\u062a \u0648\u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0645\u0639\u062a\u0645\u062f\u0629<\/a> \u064a\u062a\u0648\u0644\u0649 \u0645\u0633\u0627\u0631 \u0627\u0644\u0633\u0639\u0629 \u0627\u0644\u0641\u0631\u062f\u064a\u0629. \u0627\u0644 <a href=\"https:\/\/zobai.com\/ar\/blog\/safety-valve-selection-guide\/\">\u062f\u0644\u064a\u0644 \u0627\u062e\u062a\u064a\u0627\u0631 \u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0623\u0645\u0627\u0646 \u0627\u0644\u0639\u0627\u0645<\/a> \u064a\u062a\u0648\u0644\u0649 \u0627\u062e\u062a\u064a\u0627\u0631 \u0646\u0648\u0639 \u0627\u0644\u0635\u0645\u0627\u0645 \u0648\u0627\u0644\u062a\u0637\u0628\u064a\u0642. \u0627\u0644 <a href=\"https:\/\/zobai.com\/ar\/engineering\/back-pressure-and-bellows\/\">\u062f\u0644\u064a\u0644 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0648\u0627\u0644\u0645\u0646\u0641\u0627\u062e<\/a> \u064a\u062a\u0648\u0644\u0649 \u0627\u0644\u062a\u0623\u062b\u064a\u0631 \u0627\u0644\u062a\u0641\u0635\u064a\u0644\u064a \u0644\u0634\u0631\u0637 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0645\u062d\u062f\u062f \u0639\u0644\u0649 \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0635\u0645\u0627\u0645.<\/p>\n<p>\u062a\u062a\u0648\u0642\u0641 \u0647\u0630\u0647 \u0627\u0644\u0635\u0641\u062d\u0629 \u062e\u0637\u0648\u0629 \u0648\u0627\u062d\u062f\u0629 \u0642\u0628\u0644 \u0630\u0644\u0643: \u0641\u0647\u064a \u062a\u0633\u0627\u0639\u062f \u0641\u064a \u062a\u062d\u062f\u064a\u062f \u0634\u0631\u0637 \u0627\u0644\u0645\u0635\u0628 \u0627\u0644\u0630\u064a \u064a\u062c\u0628 \u0623\u0646 \u062a\u0633\u062a\u062e\u062f\u0645\u0647 \u062a\u0644\u0643 \u0627\u0644\u0641\u062d\u0648\u0635\u0627\u062a \u0627\u0644\u0641\u0631\u062f\u064a\u0629.<\/p>\n<\/section>\n<section id=\"section-hydraulic-analysis-stop-gate\" aria-labelledby=\"hydraulic-analysis-stop-gate\">\n<h2 id=\"hydraulic-analysis-stop-gate\">\u0639\u0646\u062f\u0645\u0627 \u064a\u062a\u0637\u0644\u0628 \u0627\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u062a\u062d\u0644\u064a\u0644\u064b\u0627 \u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u064b\u0627 \u062e\u0627\u0635\u064b\u0627 \u0628\u0627\u0644\u0645\u0634\u0631\u0648\u0639<\/h2>\n<p>\u064a\u062c\u0628 \u0623\u0646 \u064a\u062a\u0648\u0642\u0641 \u0627\u0644\u0641\u062d\u0635 \u0627\u0644\u0646\u0648\u0639\u064a \u0639\u0646\u062f\u0645\u0627 \u064a\u0639\u062a\u0645\u062f \u0634\u0631\u0637 \u0627\u0644\u0645\u062e\u0631\u062c \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0639\u0644\u0649 \u0627\u0644\u062a\u062f\u0641\u0642 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0627\u0644\u062e\u0627\u0635 \u0628\u0627\u0644\u0633\u064a\u0646\u0627\u0631\u064a\u0648 \u0639\u0628\u0631 \u0634\u0628\u0643\u0629 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u062a\u0631\u0627\u0628\u0637\u0629 \u0627\u0644\u0641\u0639\u0644\u064a\u0629 \u0648\u0644\u0627 \u064a\u0645\u0643\u0646 \u062a\u062d\u062f\u064a\u062f\u0647 \u0628\u062e\u0644\u0627\u0641 \u0630\u0644\u0643. \u0645\u062c\u0631\u062f \u0648\u062c\u0648\u062f \u0639\u062f\u0629 \u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0645\u0648\u062b\u0648\u0642\u064a\u0646 \u0644\u064a\u0633 \u0647\u0648 \u0627\u0644\u0645\u062d\u0641\u0632\u061b \u0627\u0644\u0645\u062d\u0641\u0632 \u0647\u0648 \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u062a\u0635\u0631\u064a\u0641\u0647\u0645 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u064a\u0624\u062b\u0631 \u0639\u0644\u0649 \u0634\u0631\u0637 \u0627\u0644\u0645\u062e\u0631\u062c \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0628\u0637\u0631\u064a\u0642\u0629 \u064a\u062c\u0628 \u062d\u0644\u0647\u0627 \u0645\u0646 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u0627 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0645\u0634\u0631\u0648\u0639.<\/p>\n<h3 id=\"qualitative-check-stop-conditions\">\u0627\u0644\u0638\u0631\u0648\u0641 \u0627\u0644\u062a\u064a \u062a\u064f\u0628\u0637\u0644 \u0641\u062d\u0635 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0627\u0644\u0646\u0648\u0639\u064a \u0644\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643<\/h3>\n<p>\u064a\u0644\u0632\u0645 \u0625\u062c\u0631\u0627\u0621 \u062a\u062d\u0644\u064a\u0644 \u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a \u062e\u0627\u0635 \u0628\u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0639\u0646\u062f\u0645\u0627 \u062a\u0639\u062a\u0645\u062f \u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u062e\u0631\u062c \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u0639\u0644\u0649 \u062a\u0641\u0627\u0639\u0644 \u0623\u0648 \u0623\u0643\u062b\u0631 \u0645\u0646 \u062a\u0641\u0627\u0639\u0644\u0627\u062a \u0627\u0644\u0646\u0638\u0627\u0645 \u063a\u064a\u0631 \u0627\u0644\u0645\u062d\u0633\u0648\u0645\u0629\u060c \u0645\u062b\u0644:<\/p>\n<ul>\n<li>\u0645\u0633\u0627\u0647\u0645\u0627\u062a \u0645\u062a\u0639\u062f\u062f\u0629 \u0645\u062d\u062a\u0645\u0644\u0629 \u064a\u0624\u062f\u064a \u062a\u0635\u0631\u064a\u0641\u0647\u0627 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0625\u0644\u0649 \u062a\u063a\u064a\u064a\u0631 \u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u062e\u0631\u062c \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u0629 \u0628\u0637\u0631\u064a\u0642\u0629 \u064a\u062c\u0628 \u062d\u0644\u0647\u0627 \u0645\u0646 \u0627\u0644\u0634\u0628\u0643\u0629 \u0627\u0644\u0645\u062a\u0631\u0627\u0628\u0637\u0629\u061b;<\/li>\n<li>\u0636\u063a\u0637 \u0639\u0646\u062f \u0645\u062e\u0631\u062c \u064a\u062a\u063a\u064a\u0631 \u0648\u0641\u0642\u064b\u0627 \u0644\u0645\u0635\u0627\u062f\u0631 \u062a\u0646\u0641\u064a\u0633 \u0623\u062e\u0631\u0649 \u0646\u0634\u0637\u0629\u061b;<\/li>\n<li>\u0645\u0633\u0627\u0631\u0627\u062a \u0627\u0644\u0641\u0631\u0648\u0639 \u0627\u0644\u0645\u062d\u0644\u064a\u0629 \u0648\u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u0629 \u0641\u064a \u0627\u0644\u0645\u0635\u0628 \u0627\u0644\u062a\u064a \u062a\u0624\u062b\u0631 \u0643\u0644\u062a\u0627\u0647\u0645\u0627 \u0641\u064a \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u0646\u0627\u062a\u062c\u0629\u061b;<\/li>\n<li>\u062d\u062f \u0636\u063a\u0637 \u0641\u064a \u0627\u0644\u0645\u0635\u0628 \u064a\u062a\u063a\u064a\u0631 \u0645\u0639 \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0623\u0648 \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633\u061b \u0623\u0648<\/li>\n<li>\u0646\u0638\u0627\u0645 \u062a\u062f\u0641\u0642 \u062e\u0627\u0631\u062c \u062d\u062f\u0648\u062f \u0627\u0644\u0637\u0648\u0631 \u0627\u0644\u0648\u0627\u062d\u062f \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645 \u0641\u064a \u0627\u0644\u0645\u0646\u0627\u0642\u0634\u0629 \u0627\u0644\u0639\u0627\u062f\u064a\u0629 \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u062f\u0644\u064a\u0644.<\/li>\n<\/ul>\n<p>\u0647\u0630\u0647 \u0645\u062d\u0641\u0632\u0627\u062a \u0642\u0631\u0627\u0631 \u0648\u0644\u064a\u0633\u062a \u062d\u062f\u0648\u062f \u062a\u0635\u0645\u064a\u0645. \u0648\u0647\u064a \u0644\u0627 \u062a\u062d\u062f\u062f \u0646\u0633\u0628\u0629 \u0636\u063a\u0637 \u062e\u0644\u0641\u064a \u0645\u0633\u0645\u0648\u062d\u064b\u0627 \u0628\u0647\u0627\u060c \u0648\u0644\u0627 \u062d\u062f\u064b\u0627 \u0623\u062f\u0646\u0649 \u0644\u062d\u062c\u0645 \u0627\u0644\u0645\u062c\u0645\u0639\u060c \u0648\u0644\u0627 \u0642\u0627\u0639\u062f\u0629 \u0642\u0628\u0648\u0644 \u0639\u0627\u0645\u0629.<\/p>\n<h3 id=\"different-cases-different-pressure-profiles\">\u0644\u0645\u0627\u0630\u0627 \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0646\u062a\u062c \u062d\u0627\u0644\u0627\u062a \u062a\u0646\u0641\u064a\u0633 \u0645\u062e\u062a\u0644\u0641\u0629 \u0645\u0644\u0627\u0645\u062d \u0636\u063a\u0637 \u0645\u062e\u062a\u0644\u0641\u0629 \u0641\u064a \u0627\u0644\u0645\u062c\u0645\u0639<\/h3>\n<p><a href=\"https:\/\/dam.bakerhughes.com\/m\/48a8b71d60414af9\/original\/Consolidated-2900-3900-BT-Design-White-Paper-English.pdf\" target=\"_blank\" rel=\"noopener\">\u0625\u0631\u0634\u0627\u062f\u0627\u062a \u0647\u0646\u062f\u0633\u0629 Baker Hughes<\/a> \u0645\u0644\u0627\u062d\u0638\u0629 \u0623\u0646 \u0636\u063a\u0637 \u0627\u0644\u0645\u062c\u0645\u0639 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u062a\u063a\u064a\u0631 \u062d\u0633\u0628 \u0627\u0644\u062c\u0647\u0627\u0632 \u0623\u0648 \u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062a\u064a \u062a\u062a\u0646\u0641\u0633. \u0648\u0647\u0630\u0627 \u064a\u062e\u0644\u0642 \u0642\u0627\u0639\u062f\u0629 \u062a\u0634\u062e\u064a\u0635\u064a\u0629 \u0645\u0641\u064a\u062f\u0629: \u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u062d\u0627\u0644\u062a\u0627 \u062a\u0646\u0641\u064a\u0633 \u0644\u0647\u0645\u0627 \u0645\u062c\u0645\u0648\u0639\u062a\u0627\u0646 \u0645\u062e\u062a\u0644\u0641\u062a\u0627\u0646 \u0645\u0646 \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0623\u0648 \u0638\u0631\u0648\u0641 \u0645\u062e\u062a\u0644\u0641\u0629 \u0641\u064a \u0627\u0644\u0645\u0635\u0628\u060c \u0641\u0644\u0627 \u062a\u0641\u062a\u0631\u0636 \u0623\u0646 \u0646\u062a\u064a\u062c\u0629 \u0636\u063a\u0637 \u0627\u0644\u0645\u062c\u0645\u0639 \u0645\u0646 \u0625\u062d\u062f\u0649 \u0627\u0644\u062d\u0627\u0644\u062a\u064a\u0646 \u062a\u0645\u062b\u0644 \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0627 \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u0623\u062e\u0631\u0649.<\/p>\n<p>\u0648\u0628\u0627\u0644\u0645\u062b\u0644\u060c \u0641\u0625\u0646 \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u064a \u062a\u062d\u062a\u0648\u064a \u0639\u0644\u0649 \u0623\u0643\u0628\u0631 \u0639\u062f\u062f \u0645\u0646 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0644\u064a\u0633\u062a \u062a\u0644\u0642\u0627\u0626\u064a\u064b\u0627 \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u062d\u0627\u0643\u0645\u0629 \u0644\u0645\u062c\u0631\u062f \u0623\u0646 \u0639\u062f\u062f \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0641\u064a\u0647\u0627 \u0623\u0643\u0628\u0631. \u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0627\u0644\u062d\u0627\u0643\u0645\u0629 \u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0648\u062a\u0639\u062a\u0645\u062f \u0639\u0644\u0649 \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u0641\u0639\u0644\u064a\u0629 \u0648\u0627\u0644\u0634\u0628\u0643\u0629.<\/p>\n<h3 id=\"two-phase-flashing-escalation\">\u0627\u0644\u0638\u0631\u0648\u0641 \u062b\u0646\u0627\u0626\u064a\u0629 \u0627\u0644\u0637\u0648\u0631 \u0623\u0648 \u0638\u0631\u0648\u0641 \u0627\u0644\u062a\u0628\u062e\u0631 \u0643\u062d\u062f \u062a\u0635\u0639\u064a\u062f\u064a<\/h3>\n<p><a href=\"https:\/\/www.iso.org\/standard\/35393.html\" target=\"_blank\" rel=\"noopener\">ISO 4126-9<\/a> \u064a\u0648\u0636\u062d \u0623\u0646 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0648\u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0647 \u062a\u0641\u062a\u0631\u0636 \u062a\u0635\u0631\u064a\u0641\u064b\u0627 \u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0648\u0631\u060c \u0648\u064a\u0648\u062c\u0647 \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u062b\u0646\u0627\u0626\u064a\u0629 \u0627\u0644\u0637\u0648\u0631 \u0625\u0644\u0649 \u0645\u0639\u0627\u0644\u062c\u0629 \u0645\u0646\u0641\u0635\u0644\u0629. <a href=\"https:\/\/www.iso.org\/obp\/ui?_escaped_fragment_=iso%3Astd%3Aiso%3A4126%3A-7%3Aed-2%3Av1%3Aen\" target=\"_blank\" rel=\"noopener\">ISO 4126-7<\/a> \u0648\u0628\u0627\u0644\u0645\u062b\u0644\u060c \u064a\u0648\u062c\u0651\u0647 \u062d\u0627\u0644\u0627\u062a \u0627\u0644\u0633\u0627\u0626\u0644 \u0627\u0644\u0645\u062a\u0648\u0647\u062c \u0648\u0627\u0644\u0638\u0631\u0648\u0641 \u062b\u0646\u0627\u0626\u064a\u0629 \u0627\u0644\u0637\u0648\u0631 \u0628\u0639\u064a\u062f\u064b\u0627 \u0639\u0646 \u0645\u0639\u0627\u0644\u062c\u062a\u0647 \u0627\u0644\u0639\u0627\u062f\u064a\u0629.<\/p>\n<p>\u0648\u0647\u0630\u0627 \u064a\u0631\u0633\u064a \u062d\u062f\u064b\u0627 \u0648\u0627\u0636\u062d\u064b\u0627 \u0644\u0646\u0637\u0627\u0642 \u0647\u0630\u0647 \u0627\u0644\u0645\u0642\u0627\u0644\u0629: \u0625\u0630\u0627 \u0643\u0627\u0646 \u0633\u0644\u0648\u0643 \u0627\u0644\u062a\u0648\u0647\u062c \u0623\u0648 \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0637\u0648\u0631 \u0645\u062d\u062a\u0645\u0644\u064b\u0627\u060c \u0641\u0644\u0627 \u062a\u0648\u0633\u0651\u0639 \u0627\u0644\u0627\u0633\u062a\u062f\u0644\u0627\u0644 \u0627\u0644\u0646\u0648\u0639\u064a \u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0637\u0648\u0631 \u0647\u0646\u0627 \u0644\u064a\u0635\u0628\u062d \u0627\u0633\u062a\u0646\u062a\u0627\u062c\u064b\u0627 \u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u064b\u0627. \u0648\u064a\u062c\u0628 \u0623\u0646 \u062a\u062a\u0648\u0644\u0649 \u0627\u0644\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062a\u062e\u0635\u0635\u064a\u0629 \u0627\u0644\u0645\u0639\u0645\u0648\u0644 \u0628\u0647\u0627 \u0648\u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0647\u0630\u0647 \u0627\u0644\u0645\u0647\u0645\u0629.<\/p>\n<figure class=\"wp-block-image size-full zobai-figure\" data-image-slot=\"IMG-04\"><img loading=\"lazy\" src=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-04.webp\" alt=\"\u0645\u062e\u0637\u0637 \u0642\u0631\u0627\u0631 \u064a\u0648\u0636\u062d \u0645\u062a\u0649 \u064a\u062a\u0637\u0644\u0628 \u0645\u062c\u0645\u0639 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u062a\u062d\u0644\u064a\u0644\u064b\u0627 \u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u064b\u0627 \u062e\u0627\u0635\u064b\u0627 \u0628\u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0648\u062a\u0635\u0639\u064a\u062f\u064b\u0627 \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0637\u0648\u0631.\" title=\"\u0635\u0645\u0627\u0645\u0627\u062a \u0623\u0645\u0627\u0646 \u0639\u0644\u0649 \u0645\u062c\u0645\u0639 \u062a\u0635\u0631\u064a\u0641 \u0645\u0634\u062a\u0631\u0643: \u0641\u062d\u0648\u0635\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0648\u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646 - IMG-04\" width=\"1200\" height=\"900\" class=\"wp-image-56759\" decoding=\"async\" srcset=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-04.webp 1200w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-04-300x225.webp 300w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-04-1024x768.webp 1024w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-04-768x576.webp 768w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-04-16x12.webp 16w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/09\/common-discharge-header-safety-valves-back-pressure-simultaneous-relief-checks-img-04-400x300.webp 400w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption>\u0639\u0646\u062f\u0645\u0627 \u064a\u0639\u062a\u0645\u062f \u0636\u063a\u0637 \u0627\u0644\u0645\u062e\u0631\u062c \u0639\u0644\u0649 \u0634\u0628\u0643\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u062a\u0631\u0627\u0628\u0637\u0629 \u0627\u0644\u0641\u0639\u0644\u064a\u0629\u060c \u0644\u0645 \u064a\u0639\u062f \u0627\u0644\u062a\u0648\u062c\u064a\u0647 \u0627\u0644\u0646\u0648\u0639\u064a \u0643\u0627\u0641\u064a\u064b\u0627.<\/figcaption><\/figure>\n<\/section>\n<section id=\"section-project-data-stop-gate\" aria-labelledby=\"project-data-stop-gate\">\n<h2 id=\"project-data-stop-gate\">\u0645\u0627 \u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0627\u0644\u062a\u064a \u064a\u062c\u0628 \u062a\u062d\u062f\u064a\u062f\u0647\u0627 \u0642\u0628\u0644 \u0642\u0628\u0648\u0644 \u0627\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643<\/h2>\n<p>\u0627\u0644\u0633\u0624\u0627\u0644 \u0627\u0644\u0646\u0647\u0627\u0626\u064a \u0644\u064a\u0633 \u201c\u0645\u0627 \u0627\u0644\u0642\u0627\u0639\u062f\u0629 \u0627\u0644\u0639\u0627\u0645\u0629 \u0627\u0644\u062a\u064a \u062a\u0646\u0635 \u0639\u0644\u0649 \u0623\u0646 \u0647\u0630\u0627 \u0627\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0645\u0642\u0628\u0648\u0644\u061f\u201d \u0628\u0644 \u201c\u0647\u0644 \u0644\u062f\u064a\u0646\u0627 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0643\u0627\u0641\u064a\u0629 \u0639\u0646 \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0644\u062a\u062d\u062f\u064a\u062f \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u0641\u0639\u0644\u064a\u0629 \u0644\u0644\u0645\u0635\u0628 \u0641\u064a \u062d\u0627\u0644\u0627\u062a \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u0639\u0645\u0648\u0644 \u0628\u0647\u0627\u061f\u201d<\/p>\n<h3 id=\"scenario-and-contributor-inputs\">\u0633\u064a\u0646\u0627\u0631\u064a\u0648 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0648\u0645\u062f\u062e\u0644\u0627\u062a \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646\u064a\u0646<\/h3>\n<p>\u0642\u0628\u0644 \u0623\u0646 \u064a\u0645\u0643\u0646 \u062d\u0633\u0645 \u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u060c \u062a\u0623\u0643\u062f \u0645\u0646:<\/p>\n<ul>\n<li>\u0633\u064a\u0646\u0627\u0631\u064a\u0648 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0623\u0648 \u0627\u0644\u062d\u062f\u062b \u0627\u0644\u0645\u0633\u0628\u0628 \u0627\u0644\u0630\u064a \u064a\u062a\u0645 \u062a\u0642\u064a\u064a\u0645\u0647\u061b;<\/li>\n<li>\u0623\u062c\u0647\u0632\u0629 \u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u062a\u0631\u0627\u0628\u0637\u0629 \u0630\u0627\u062a \u0627\u0644\u0635\u0644\u0629 \u0628\u0630\u0644\u0643 \u0627\u0644\u0646\u0638\u0627\u0645\u061b;<\/li>\n<li>\u0623\u064a \u0645\u0646 \u062a\u0644\u0643 \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u062a\u064f\u0639\u062f \u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0645\u062a\u0632\u0627\u0645\u0646\u064a\u0646 \u0645\u0648\u062b\u0648\u0642\u064a\u0646 \u0641\u064a \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u062d\u062f\u062f\u0629\u061b;<\/li>\n<li>\u0623\u0633\u0627\u0633 \u0627\u0644\u062a\u062f\u0641\u0642 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0648\u0641\u0642 \u0623\u0633\u0627\u0633 \u062a\u0635\u0645\u064a\u0645 \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0627\u0644\u0645\u0639\u0645\u0648\u0644 \u0628\u0647 \u0641\u064a \u0627\u0644\u0645\u0634\u0631\u0648\u0639\u061b \u0648<\/li>\n<li>\u0643\u0648\u062f \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0627\u0644\u0645\u0639\u0645\u0648\u0644 \u0628\u0647 \u0648\u0627\u0644\u0627\u062e\u062a\u0635\u0627\u0635 \u0627\u0644\u0642\u0636\u0627\u0626\u064a \u0648\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u062a\u0635\u0645\u064a\u0645.<\/li>\n<\/ul>\n<p>\u0625\u0630\u0627 \u0643\u0627\u0646 \u0623\u0633\u0627\u0633 \u0645\u0639\u062f\u0644 \u0627\u0644\u062a\u0635\u0631\u064a\u0641 \u0623\u0648 \u0623\u0633\u0627\u0633 \u0627\u0644\u062a\u062f\u0641\u0642 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a \u0644\u0627 \u064a\u0632\u0627\u0644 \u062a\u062e\u0645\u064a\u0646\u064a\u064b\u0627\u060c \u0641\u0625\u0646 \u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0645\u0634\u0639\u0628 \u0627\u0644\u0645\u0634\u062a\u0631\u0643 \u0644\u064a\u0633\u062a \u062c\u0627\u0647\u0632\u0629 \u0644\u0627\u0633\u062a\u0646\u062a\u0627\u062c \u0646\u0647\u0627\u0626\u064a \u0628\u0634\u0623\u0646 \u0627\u0644\u0643\u0641\u0627\u064a\u0629.<\/p>\n<h3 id=\"fluid-network-boundary-inputs\">\u0645\u062f\u062e\u0644\u0627\u062a \u0627\u0644\u0645\u0627\u0626\u0639 \u0648\u0638\u0631\u0648\u0641 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0648\u0634\u0628\u0643\u0629 \u0627\u0644\u0647\u064a\u062f\u0631 \u0648\u0627\u0644\u062d\u062f\u0648\u062f \u0627\u0644\u0645\u0635\u0628\u0651\u064a\u0629<\/h3>\n<p>\u064a\u062c\u0628 \u0623\u0646 \u064a\u062a\u0636\u0645\u0646 \u062a\u062d\u0644\u064a\u0644 \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0623\u064a\u0636\u064b\u0627 \u0645\u0639\u0644\u0648\u0645\u0627\u062a \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u0644\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062d\u0633\u0627\u0628 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a \u0627\u0644\u0645\u0639\u0645\u0648\u0644 \u0628\u0647\u0627. \u0639\u0644\u0649 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0645\u0642\u0627\u0644\u060c \u062a\u0643\u0648\u0646 \u0641\u0626\u0627\u062a \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0643\u0627\u0644\u062a\u0627\u0644\u064a:<\/p>\n<ul>\n<li>\u0637\u0648\u0631 \u0627\u0644\u0645\u0627\u0626\u0639 \u0648\u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0627\u0644\u062a\u0628\u062e\u064a\u0631 \u0627\u0644\u0648\u0645\u064a\u0636\u064a \u0623\u0648 \u0627\u0644\u0633\u0644\u0648\u0643 \u062b\u0646\u0627\u0626\u064a \u0627\u0644\u0637\u0648\u0631 \u0645\u0645\u0643\u0646\u064b\u0627\u061b;<\/li>\n<li>\u0645\u062f\u062e\u0644\u0627\u062a \u0638\u0631\u0648\u0641 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 \u0648\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0645\u0627\u0626\u0639 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u0644\u0644\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u0645\u062e\u062a\u0627\u0631\u0629\u061b;<\/li>\n<li>\u0641\u0631\u0648\u0639 \u0627\u0644\u0645\u062e\u0631\u062c \u0648\u062a\u0631\u062a\u064a\u0628 \u0627\u0644\u0647\u064a\u062f\u0631 \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u061b;<\/li>\n<li>\u0627\u0644\u0623\u0628\u0639\u0627\u062f \u0648\u0627\u0644\u062e\u0635\u0627\u0626\u0635 \u0627\u0644\u0645\u0648\u0644\u0651\u062f\u0629 \u0644\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629 \u0644\u0644\u0646\u0645\u0648\u0630\u062c \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a\u061b;<\/li>\n<li>\u0645\u0648\u0627\u0642\u0639 \u062a\u0648\u0635\u064a\u0644 \u0627\u0644\u0641\u0631\u0648\u0639 \u0623\u0648 \u0646\u0642\u0627\u0637 \u0627\u0644\u0631\u0628\u0637 \u0630\u0627\u062a \u0627\u0644\u0635\u0644\u0629\u061b \u0648<\/li>\n<li>\u062d\u062f\u0648\u062f \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0635\u0628\u0651\u064a\u0629 \u0648\u0645\u0635\u0627\u062f\u0631 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0623\u062e\u0631\u0649 \u0627\u0644\u0645\u062a\u0635\u0644\u0629.<\/li>\n<\/ul>\n<p>\u0647\u0630\u0647 \u0627\u0644\u0641\u0626\u0627\u062a \u0646\u0648\u0639\u064a\u0629 \u0628\u0634\u0643\u0644 \u0645\u062a\u0639\u0645\u062f. \u064a\u062c\u0628 \u0623\u0646 \u062a\u0623\u062a\u064a \u0623\u0628\u0639\u0627\u062f \u0627\u0644\u062e\u0637\u0648\u0637 \u0627\u0644\u0641\u0639\u0644\u064a\u0629 \u0648\u0645\u0639\u062f\u0644\u0627\u062a \u0627\u0644\u062a\u062f\u0641\u0642 \u0648\u0627\u0644\u0636\u063a\u0648\u0637 \u0648\u062f\u0631\u062c\u0627\u062a \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0648\u0642\u064a\u0645 \u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0645\u0646 \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0648\u0644\u064a\u0633 \u0645\u0646 \u0645\u0642\u0627\u0644 \u0639\u0627\u0645.<\/p>\n<h3 id=\"valve-specific-checks-after-system-condition\">\u064a\u062a\u0645 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u062d\u062f\u0648\u062f \u0627\u0644\u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0635\u0645\u0627\u0645 \u0628\u0639\u062f \u0645\u0639\u0631\u0641\u0629 \u062d\u0627\u0644\u0629 \u0627\u0644\u0646\u0638\u0627\u0645<\/h3>\n<p>\u0628\u0639\u062f \u0623\u0646 \u064a\u062d\u062f\u062f \u062a\u062d\u0644\u064a\u0644 \u0646\u0638\u0627\u0645 \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u062e\u0631\u062c \u0627\u0644\u0645\u0637\u0628\u0642\u0629 \u0639\u0644\u0649 \u0627\u0644\u0635\u0645\u0627\u0645\u060c \u064a\u0645\u0643\u0646 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u062a\u0644\u0643 \u0627\u0644\u062d\u0627\u0644\u0629 \u0645\u0642\u0627\u0628\u0644 \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0627\u0644\u062c\u0647\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629 \u0648\u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0630\u0627\u062a \u0627\u0644\u0635\u0644\u0629 \u0644\u0644\u062c\u0647\u0627\u0632 \u0627\u0644\u0645\u062e\u062a\u0627\u0631.<\/p>\n<p>\u0644\u0630\u0644\u0643 \u064a\u062c\u0628 \u0623\u0646 \u064a\u0628\u0642\u0649 \u0627\u0644\u062a\u0633\u0644\u0633\u0644 \u0643\u0627\u0644\u062a\u0627\u0644\u064a:<\/p>\n<ol>\n<li>\u062a\u062d\u062f\u064a\u062f \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633\u061b;<\/li>\n<li>\u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0645\u0633\u0627\u0647\u0645\u064a\u0646 \u0627\u0644\u0645\u062a\u0632\u0627\u0645\u0646\u064a\u0646 \u0627\u0644\u0645\u062d\u062a\u0645\u0644\u064a\u0646\u061b;<\/li>\n<li>\u062a\u062d\u062f\u064a\u062f \u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u062e\u0631\u062c \u0644\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u0645\u0634\u062a\u0631\u0643\u061b;<\/li>\n<li>\u062b\u0645 \u0625\u062c\u0631\u0627\u0621 \u0641\u062d\u0648\u0635\u0627\u062a \u062d\u0633\u0627\u0628 \u0645\u0642\u0627\u0633 \u0627\u0644\u0635\u0645\u0627\u0645 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\u0636\u0645\u0646 <a href=\"https:\/\/zobai.com\/ar\/engineering\/back-pressure-and-bellows\/\">\u062f\u0644\u064a\u0644 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a \u0648\u0627\u0644\u0645\u0646\u0641\u0627\u062e<\/a>, \u060c \u0628\u064a\u0646\u0645\u0627 \u064a\u0628\u0642\u0649 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u062c\u0647\u0627\u0632 \u0627\u0644\u0643\u0627\u0645\u0644 \u0636\u0645\u0646 <a href=\"https:\/\/zobai.com\/ar\/blog\/safety-valve-selection-guide\/\">\u062f\u0644\u064a\u0644 \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0639\u0627\u0645<\/a>.<\/p>\n<aside class=\"zobai-cta\" aria-label=\"\u0627\u0644\u062e\u0637\u0648\u0629 \u0627\u0644\u062a\u0627\u0644\u064a\u0629 \u0641\u064a \u0627\u0644\u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0641\u0646\u064a\u0629\">\n<p>\u0625\u0630\u0627 \u0644\u0645 \u062a\u0643\u0646 \u062d\u0627\u0644\u0629 \u0627\u0644\u062a\u0646\u0641\u064a\u0633 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\u0647\u0646\u062f\u0633\u064a\u0629 \u0630\u0627\u062a \u0635\u0644\u0629<\/h2>\n<p>\u062a\u0627\u0628\u0639 \u0647\u0630\u0647 \u0627\u0644\u0623\u062f\u0644\u0629 \u0627\u0644\u0645\u062a\u062e\u0635\u0635\u0629 \u0639\u0646\u062f\u0645\u0627 \u062a\u0635\u0644 \u0627\u0644\u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0647\u0646\u062f\u0633\u064a\u0629 \u0625\u0644\u0649 \u0627\u0644\u0633\u0624\u0627\u0644 \u0627\u0644\u0645\u0642\u0627\u0628\u0644 \u0627\u0644\u0645\u062a\u0639\u0644\u0642 \u0628\u062a\u062d\u062f\u064a\u062f \u0627\u0644\u0645\u0642\u0627\u0633 \u0623\u0648 \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0623\u0648 \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0623\u0648 \u0627\u0644\u0635\u064a\u0627\u0646\u0629:<\/p>\n<ul>\n<li><a href=\"https:\/\/zobai.com\/ar\/blog\/how-to-calculate-built-up-back-pressure-in-safety-valve-discharge-piping\/\">\u062d\u0633\u0627\u0628 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u062e\u0644\u0641\u064a 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