{"id":53083,"date":"2026-05-15T03:26:58","date_gmt":"2026-05-15T03:26:58","guid":{"rendered":"https:\/\/zobai.com\/?page_id=53083"},"modified":"2026-05-15T03:34:39","modified_gmt":"2026-05-15T03:34:39","slug":"petrochemical","status":"publish","type":"page","link":"https:\/\/zobai.com\/ru\/applications\/petrochemical\/","title":{"rendered":"\u041d\u0435\u0444\u0442\u0435\u0445\u0438\u043c\u0438\u044f"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"53083\" class=\"elementor elementor-53083\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3b01af44 e-con-full e-flex cmsmasters-bg-hide-none cmsmasters-bg-hide-none cmsmasters-block-default e-con e-parent\" data-id=\"3b01af44\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-5829afd4 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5829afd4\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1dcc12de cmsmasters-breadcrumbs-alignment-left cmsmasters-breadcrumbs-type-rank cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-cmsmasters-breadcrumbs cmsmasters-widget-breadcrumbs\" data-id=\"1dcc12de\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"cmsmasters-breadcrumbs.default\">\n\t\t\t\t\t<div class=\"cmsmasters-widget-breadcrumbs__container\"><div class=\"cmsmasters-widget-breadcrumbs__content\"><nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7706f1ea elementor-widget__width-initial cmsmasters-block-default cmsmasters-sticky-default elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"7706f1ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;cmsmasters-fade-in-up&quot;,&quot;_animation_delay&quot;:150}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Petrochemical Safety Valves for Process Pressure Relief<\/h1>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2d9d9e39 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"2d9d9e39\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-666f8d3e cmsmasters-button-mobile-align-center cmsmasters-icon-arrangement-together cmsmasters-block-default cmsmasters-sticky-default elementor-invisible elementor-widget elementor-widget-cmsmasters-button\" data-id=\"666f8d3e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;cmsmasters-pop-in&quot;,&quot;_animation_delay&quot;:300}\" data-widget_type=\"cmsmasters-button.default\">\n\t\t\t\t\t<div class=\"elementor-widget-cmsmasters-button__button-container\"><div class=\"elementor-widget-cmsmasters-button__button-container-inner\"><a href=\"https:\/\/zobai.com\/ru\/?page_id=48437\" class=\"cmsmasters-button-link elementor-widget-cmsmasters-button__button cmsmasters-icon-view-default cmsmasters-icon-shape- cmsmasters-button-size-sm\" role=\"button\" tabindex=\"0\"><span class=\"elementor-widget-cmsmasters-button__content-wrapper cmsmasters-align-icon-right\"><span class=\"elementor-widget-cmsmasters-button__icon\"><i aria-hidden=\"true\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrows-1\"><\/i><\/span><span class=\"elementor-widget-cmsmasters-button__text\">CONTACT SALES<\/span><\/span><\/a><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-16d043cf e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"16d043cf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-685fee63 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"685fee63\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-28499c99 e-con-full cmsmasters-effect cmsmasters-effect-type-transform e-flex cmsmasters-effect-hover-type-element cmsmasters-block-default e-con e-child\" data-id=\"28499c99\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;position&quot;:&quot;absolute&quot;,&quot;cms_transform_hover_type&quot;:&quot;element&quot;}\">\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1a4d8e6d e-con-full e-flex cmsmasters-block-default e-con e-parent\" data-id=\"1a4d8e6d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-117ce7de cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-html\" data-id=\"117ce7de\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>\r\n  .zobai-petro-page {\r\n    --z-green: #0fad87;\r\n    --z-green-dark: #087761;\r\n    --z-ink: #20242a;\r\n    --z-muted: #66727f;\r\n    --z-bg: #f3f4f5;\r\n    --z-card: #ffffff;\r\n    --z-line: #e3e8ec;\r\n    --z-soft: #eef8f5;\r\n    --z-warning: #fff4e5;\r\n    --z-dark: #102522;\r\n    --z-radius: 22px;\r\n    font-family: inherit;\r\n    color: var(--z-ink);\r\n    background: var(--z-bg);\r\n  }\r\n\r\n  .zobai-petro-page * {\r\n    box-sizing: border-box;\r\n  }\r\n\r\n  .zobai-petro-section {\r\n    max-width: 100%;\r\n    margin: 0 auto;\r\n    padding: 88px 80px;\r\n  }\r\n\r\n  .zobai-petro-section-soft {\r\n    background: #f8faf9;\r\n  }\r\n\r\n  .zobai-petro-eyebrow {\r\n    display: inline-flex;\r\n    align-items: center;\r\n    gap: 8px;\r\n    color: var(--z-green);\r\n    font-size: 13px;\r\n    font-weight: 800;\r\n    letter-spacing: 0.14em;\r\n    text-transform: uppercase;\r\n    margin-bottom: 18px;\r\n  }\r\n\r\n  .zobai-petro-eyebrow:before {\r\n    content: \"\u203a\u203a\u203a\";\r\n    color: var(--z-green);\r\n    font-size: 20px;\r\n    letter-spacing: -2px;\r\n  }\r\n\r\n  .zobai-petro-title {\r\n    font-size: clamp(34px, 5vw, 76px);\r\n    line-height: 1.04;\r\n    letter-spacing: -0.04em;\r\n    margin: 0 0 26px;\r\n    color: var(--z-ink);\r\n    max-width: 1120px;\r\n  }\r\n\r\n  .zobai-petro-lead {\r\n    font-size: clamp(17px, 1.5vw, 21px);\r\n    line-height: 1.75;\r\n    color: #35404a;\r\n    max-width: 1120px;\r\n    margin: 0 0 34px;\r\n  }\r\n\r\n  .zobai-petro-grid {\r\n    display: grid;\r\n    grid-template-columns: repeat(12, 1fr);\r\n    gap: 28px;\r\n  }\r\n\r\n  .zobai-petro-span-3 { grid-column: span 3; }\r\n  .zobai-petro-span-4 { grid-column: span 4; }\r\n  .zobai-petro-span-5 { grid-column: span 5; }\r\n  .zobai-petro-span-6 { grid-column: span 6; }\r\n  .zobai-petro-span-7 { grid-column: span 7; }\r\n  .zobai-petro-span-8 { grid-column: span 8; }\r\n  .zobai-petro-span-12 { grid-column: span 12; }\r\n\r\n  .zobai-petro-card {\r\n    background: var(--z-card);\r\n    border: 1px solid var(--z-line);\r\n    border-radius: var(--z-radius);\r\n    padding: 30px;\r\n    box-shadow: 0 14px 38px rgba(18, 31, 42, 0.06);\r\n  }\r\n\r\n  .zobai-petro-card h2,\r\n  .zobai-petro-card h3 {\r\n    margin: 0 0 14px;\r\n    color: var(--z-ink);\r\n  }\r\n\r\n  .zobai-petro-card h2 {\r\n    font-size: 34px;\r\n    line-height: 1.18;\r\n    letter-spacing: -0.03em;\r\n  }\r\n\r\n  .zobai-petro-card h3 {\r\n    font-size: 24px;\r\n    line-height: 1.25;\r\n  }\r\n\r\n  .zobai-petro-card p {\r\n    font-size: 16px;\r\n    line-height: 1.72;\r\n    color: #48525d;\r\n    margin: 0 0 16px;\r\n  }\r\n\r\n  .zobai-petro-card p:last-child {\r\n    margin-bottom: 0;\r\n  }\r\n\r\n  .zobai-petro-hero-panel {\r\n    background: linear-gradient(135deg, #09201d 0%, #0b3c34 48%, #0f8a6d 100%);\r\n    border-radius: 34px;\r\n    color: #fff;\r\n    padding: 50px;\r\n    position: relative;\r\n    overflow: hidden;\r\n  }\r\n\r\n  .zobai-petro-hero-panel:after {\r\n    content: \"\";\r\n    position: absolute;\r\n    width: 360px;\r\n    height: 360px;\r\n    border-radius: 50%;\r\n    right: -150px;\r\n    top: -170px;\r\n    background: rgba(255,255,255,0.08);\r\n  }\r\n\r\n  .zobai-petro-hero-panel h2 {\r\n    color: #fff;\r\n    font-size: clamp(34px, 4.6vw, 66px);\r\n    line-height: 1.06;\r\n    letter-spacing: -0.04em;\r\n    margin: 0 0 22px;\r\n    position: relative;\r\n    z-index: 1;\r\n  }\r\n\r\n  .zobai-petro-hero-panel p {\r\n    color: rgba(255,255,255,0.88);\r\n    line-height: 1.75;\r\n    font-size: 18px;\r\n    max-width: 980px;\r\n    margin: 0;\r\n    position: relative;\r\n    z-index: 1;\r\n  }\r\n\r\n  .zobai-petro-kpi {\r\n    display: grid;\r\n    grid-template-columns: repeat(4, 1fr);\r\n    gap: 14px;\r\n    margin-top: 34px;\r\n    position: relative;\r\n    z-index: 1;\r\n  }\r\n\r\n  .zobai-petro-kpi-item {\r\n    border: 1px solid rgba(255,255,255,0.18);\r\n    background: rgba(255,255,255,0.08);\r\n    border-radius: 20px;\r\n    padding: 22px;\r\n  }\r\n\r\n  .zobai-petro-kpi-item strong {\r\n    display: block;\r\n    color: #a9f4df;\r\n    font-size: 13px;\r\n    letter-spacing: 0.08em;\r\n    text-transform: uppercase;\r\n    margin-bottom: 10px;\r\n  }\r\n\r\n  .zobai-petro-kpi-item span {\r\n    display: block;\r\n    color: #fff;\r\n    font-size: 20px;\r\n    line-height: 1.28;\r\n    font-weight: 850;\r\n  }\r\n\r\n  .zobai-petro-chip-row {\r\n    display: flex;\r\n    flex-wrap: wrap;\r\n    gap: 10px;\r\n    margin-top: 22px;\r\n  }\r\n\r\n  .zobai-petro-chip {\r\n    display: inline-flex;\r\n    align-items: center;\r\n    border: 1px solid #cde6df;\r\n    background: #f5fffb;\r\n    color: #0a6d5b;\r\n    border-radius: 999px;\r\n    padding: 9px 14px;\r\n    font-size: 14px;\r\n    font-weight: 700;\r\n  }\r\n\r\n  .zobai-petro-flow {\r\n    display: grid;\r\n    gap: 16px;\r\n    margin-top: 28px;\r\n  }\r\n\r\n  .zobai-petro-flow-item {\r\n    display: grid;\r\n    grid-template-columns: 90px 1fr;\r\n    gap: 20px;\r\n    background: #fff;\r\n    border: 1px solid var(--z-line);\r\n    border-radius: 22px;\r\n    padding: 24px;\r\n    box-shadow: 0 12px 30px rgba(18, 31, 42, 0.04);\r\n  }\r\n\r\n  .zobai-petro-flow-num {\r\n    width: 64px;\r\n    height: 64px;\r\n    border-radius: 18px;\r\n    background: var(--z-soft);\r\n    color: var(--z-green-dark);\r\n    display: flex;\r\n    align-items: center;\r\n    justify-content: center;\r\n    font-size: 22px;\r\n    font-weight: 900;\r\n  }\r\n\r\n  .zobai-petro-flow-item h3 {\r\n    margin: 0 0 8px;\r\n    font-size: 24px;\r\n    color: var(--z-ink);\r\n  }\r\n\r\n  .zobai-petro-flow-item p {\r\n    margin: 0;\r\n    color: #4d5863;\r\n    line-height: 1.68;\r\n  }\r\n\r\n  .zobai-petro-table-wrap {\r\n    overflow-x: auto;\r\n    border-radius: 20px;\r\n    border: 1px solid var(--z-line);\r\n    background: #fff;\r\n    box-shadow: 0 14px 34px rgba(18, 31, 42, 0.04);\r\n  }\r\n\r\n  .zobai-petro-table {\r\n    width: 100%;\r\n    border-collapse: collapse;\r\n    min-width: 980px;\r\n    font-size: 15px;\r\n  }\r\n\r\n  .zobai-petro-table th {\r\n    background: #102522;\r\n    color: #fff;\r\n    padding: 17px 18px;\r\n    text-align: left;\r\n    font-weight: 850;\r\n    white-space: nowrap;\r\n  }\r\n\r\n  .zobai-petro-table td {\r\n    padding: 17px 18px;\r\n    border-bottom: 1px solid var(--z-line);\r\n    color: #3d4953;\r\n    vertical-align: top;\r\n    line-height: 1.55;\r\n  }\r\n\r\n  .zobai-petro-table tr:nth-child(even) td {\r\n    background: #fbfcfc;\r\n  }\r\n\r\n  .zobai-petro-table tr:last-child td {\r\n    border-bottom: 0;\r\n  }\r\n\r\n  .zobai-petro-list {\r\n    display: grid;\r\n    gap: 12px;\r\n    margin: 20px 0 0;\r\n    padding: 0;\r\n    list-style: none;\r\n  }\r\n\r\n  .zobai-petro-list li {\r\n    position: relative;\r\n    padding-left: 30px;\r\n    color: #48525d;\r\n    line-height: 1.62;\r\n  }\r\n\r\n  .zobai-petro-list li:before {\r\n    content: \"\u2713\";\r\n    position: absolute;\r\n    left: 0;\r\n    top: 0;\r\n    color: var(--z-green);\r\n    font-weight: 900;\r\n  }\r\n\r\n  .zobai-petro-case {\r\n    background: #fff;\r\n    border: 1px solid var(--z-line);\r\n    border-radius: 24px;\r\n    padding: 28px;\r\n    box-shadow: 0 14px 38px rgba(18, 31, 42, 0.06);\r\n  }\r\n\r\n  .zobai-petro-case-top {\r\n    display: flex;\r\n    justify-content: space-between;\r\n    gap: 16px;\r\n    align-items: flex-start;\r\n    margin-bottom: 18px;\r\n  }\r\n\r\n  .zobai-petro-case h3 {\r\n    margin: 0;\r\n    font-size: 24px;\r\n    color: var(--z-ink);\r\n    line-height: 1.25;\r\n  }\r\n\r\n  .zobai-petro-case-tag {\r\n    display: inline-flex;\r\n    align-items: center;\r\n    white-space: nowrap;\r\n    border-radius: 999px;\r\n    background: var(--z-soft);\r\n    color: var(--z-green-dark);\r\n    padding: 8px 12px;\r\n    font-size: 13px;\r\n    font-weight: 850;\r\n  }\r\n\r\n  .zobai-petro-case-data {\r\n    display: grid;\r\n    grid-template-columns: repeat(2, 1fr);\r\n    gap: 10px 18px;\r\n    margin: 18px 0;\r\n    padding: 18px;\r\n    border-radius: 18px;\r\n    background: #f8fbfa;\r\n    border: 1px solid #dcebe7;\r\n  }\r\n\r\n  .zobai-petro-case-data div {\r\n    color: #42505b;\r\n    line-height: 1.5;\r\n    font-size: 14px;\r\n  }\r\n\r\n  .zobai-petro-case-data b {\r\n    color: var(--z-ink);\r\n  }\r\n\r\n  .zobai-petro-case p {\r\n    margin: 0;\r\n    color: #4d5863;\r\n    line-height: 1.7;\r\n  }\r\n\r\n  .zobai-petro-accordion {\r\n    display: grid;\r\n    gap: 14px;\r\n  }\r\n\r\n  .zobai-petro-acc-item {\r\n    background: #fff;\r\n    border: 1px solid var(--z-line);\r\n    border-radius: 18px;\r\n    overflow: hidden;\r\n  }\r\n\r\n  .zobai-petro-acc-btn {\r\n    width: 100%;\r\n    border: 0;\r\n    background: #fff;\r\n    padding: 22px 24px;\r\n    display: flex;\r\n    justify-content: space-between;\r\n    align-items: center;\r\n    text-align: left;\r\n    cursor: pointer;\r\n    color: var(--z-ink);\r\n    font-size: 18px;\r\n    font-weight: 850;\r\n  }\r\n\r\n  .zobai-petro-acc-btn span {\r\n    width: 34px;\r\n    height: 34px;\r\n    border-radius: 50%;\r\n    background: var(--z-soft);\r\n    color: var(--z-green-dark);\r\n    display: inline-flex;\r\n    align-items: center;\r\n    justify-content: center;\r\n    flex: 0 0 34px;\r\n    margin-left: 16px;\r\n    transition: transform 0.2s ease;\r\n  }\r\n\r\n  .zobai-petro-acc-item.is-open .zobai-petro-acc-btn span {\r\n    transform: rotate(45deg);\r\n  }\r\n\r\n  .zobai-petro-acc-body {\r\n    display: none;\r\n    padding: 0 24px 24px;\r\n    color: #4a5661;\r\n    line-height: 1.72;\r\n    font-size: 16px;\r\n  }\r\n\r\n  .zobai-petro-acc-item.is-open .zobai-petro-acc-body {\r\n    display: block;\r\n  }\r\n\r\n  .zobai-petro-link-grid {\r\n    display: grid;\r\n    grid-template-columns: repeat(3, 1fr);\r\n    gap: 14px;\r\n    margin-top: 24px;\r\n  }\r\n\r\n  .zobai-petro-link-card {\r\n    display: block;\r\n    text-decoration: none;\r\n    background: #fff;\r\n    border: 1px solid var(--z-line);\r\n    border-radius: 18px;\r\n    padding: 20px;\r\n    transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;\r\n  }\r\n\r\n  .zobai-petro-link-card:hover {\r\n    transform: translateY(-2px);\r\n    border-color: #a7ded1;\r\n    box-shadow: 0 14px 34px rgba(18,31,42,0.08);\r\n  }\r\n\r\n  .zobai-petro-link-card strong {\r\n    display: block;\r\n    color: var(--z-ink);\r\n    font-size: 17px;\r\n    margin-bottom: 8px;\r\n  }\r\n\r\n  .zobai-petro-link-card span {\r\n    display: block;\r\n    color: #5d6873;\r\n    line-height: 1.55;\r\n    font-size: 14px;\r\n  }\r\n\r\n  .zobai-petro-rfq {\r\n    background: linear-gradient(135deg, #09201d 0%, #0d6f5d 100%);\r\n    border-radius: 34px;\r\n    padding: 48px;\r\n    color: #fff;\r\n    display: grid;\r\n    grid-template-columns: 1.05fr 0.95fr;\r\n    gap: 36px;\r\n    align-items: center;\r\n  }\r\n\r\n  .zobai-petro-rfq h2 {\r\n    font-size: clamp(32px, 4vw, 56px);\r\n    line-height: 1.08;\r\n    letter-spacing: -0.04em;\r\n    color: #fff;\r\n    margin: 0 0 18px;\r\n  }\r\n\r\n  .zobai-petro-rfq p {\r\n    color: rgba(255,255,255,0.86);\r\n    line-height: 1.72;\r\n    font-size: 17px;\r\n    margin: 0 0 24px;\r\n  }\r\n\r\n  .zobai-petro-rfq-box {\r\n    background: rgba(255,255,255,0.10);\r\n    border: 1px solid rgba(255,255,255,0.18);\r\n    border-radius: 24px;\r\n    padding: 26px;\r\n  }\r\n\r\n  .zobai-petro-rfq-box h3 {\r\n    color: #fff;\r\n    font-size: 22px;\r\n    margin: 0 0 16px;\r\n  }\r\n\r\n  .zobai-petro-rfq-grid {\r\n    display: grid;\r\n    grid-template-columns: 1fr 1fr;\r\n    gap: 10px;\r\n  }\r\n\r\n  .zobai-petro-rfq-item {\r\n    background: rgba(255,255,255,0.10);\r\n    border-radius: 14px;\r\n    padding: 12px 14px;\r\n    color: rgba(255,255,255,0.92);\r\n    font-size: 14px;\r\n    font-weight: 700;\r\n  }\r\n\r\n  .zobai-petro-btn-row {\r\n    display: flex;\r\n    flex-wrap: wrap;\r\n    gap: 14px;\r\n  }\r\n\r\n  .zobai-petro-btn {\r\n    display: inline-flex;\r\n    align-items: center;\r\n    justify-content: center;\r\n    min-height: 48px;\r\n    border-radius: 12px;\r\n    padding: 0 22px;\r\n    text-decoration: none;\r\n    font-weight: 850;\r\n    transition: transform 0.18s ease, opacity 0.18s ease;\r\n  }\r\n\r\n  .zobai-petro-btn:hover {\r\n    transform: translateY(-2px);\r\n    opacity: 0.92;\r\n  }\r\n\r\n  .zobai-petro-btn-primary {\r\n    background: #ffc400;\r\n    color: #18201f;\r\n  }\r\n\r\n  .zobai-petro-btn-secondary {\r\n    background: rgba(255,255,255,0.12);\r\n    color: #fff;\r\n    border: 1px solid rgba(255,255,255,0.32);\r\n  }\r\n\r\n  .zobai-petro-note {\r\n    margin-top: 18px;\r\n    color: #66727f;\r\n    font-size: 14px;\r\n    line-height: 1.6;\r\n  }\r\n\r\n  @media (max-width: 1024px) {\r\n    .zobai-petro-span-3,\r\n    .zobai-petro-span-4,\r\n    .zobai-petro-span-5,\r\n    .zobai-petro-span-6,\r\n    .zobai-petro-span-7,\r\n    .zobai-petro-span-8,\r\n    .zobai-petro-span-12 {\r\n      grid-column: span 12;\r\n    }\r\n\r\n    .zobai-petro-kpi,\r\n    .zobai-petro-link-grid {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .zobai-petro-rfq {\r\n      grid-template-columns: 1fr;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 640px) {\r\n    .zobai-petro-section {\r\n      padding: 58px 18px;\r\n    }\r\n\r\n    .zobai-petro-card,\r\n    .zobai-petro-hero-panel,\r\n    .zobai-petro-rfq,\r\n    .zobai-petro-case {\r\n      padding: 26px 20px;\r\n      border-radius: 24px;\r\n    }\r\n\r\n    .zobai-petro-flow-item {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .zobai-petro-case-top {\r\n      flex-direction: column;\r\n    }\r\n\r\n    .zobai-petro-case-data {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .zobai-petro-rfq-grid {\r\n      grid-template-columns: 1fr;\r\n    }\r\n  }\r\n<\/style>\r\n\r\n<div class=\"zobai-petro-page\">\r\n\r\n  <section class=\"zobai-petro-section\">\r\n    <div class=\"zobai-petro-hero-panel\">\r\n      <div class=\"zobai-petro-eyebrow\">Petrochemical Pressure Relief<\/div>\r\n      <h2>Petrochemical Safety Valves for Process Pressure Relief Systems<\/h2>\r\n      <p>\r\n        Petrochemical safety valves protect reactors, distillation columns, compressors, heat exchangers, storage systems, polymerization units, steam systems and process vessels from overpressure. In petrochemical plants, a PSV or PRV must be selected from the relief case, chemical medium, phase behavior, temperature, fouling risk, corrosion risk, required capacity, back pressure and project documentation requirements.\r\n      <\/p>\r\n\r\n      <div class=\"zobai-petro-kpi\">\r\n        <div class=\"zobai-petro-kpi-item\">\r\n          <strong>Core Equipment<\/strong>\r\n          <span>Reactors, columns, compressors, exchangers and pressure vessels<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-petro-kpi-item\">\r\n          <strong>Key Relief Cases<\/strong>\r\n          <span>Runaway reaction, blocked outlet, fire exposure and tube rupture<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-petro-kpi-item\">\r\n          <strong>Service Risks<\/strong>\r\n          <span>Polymer fouling, toxic fluids, corrosive media and high back pressure<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-petro-kpi-item\">\r\n          <strong>RFQ Output<\/strong>\r\n          <span>Complete datasheet, sizing basis, material record and test documents<\/span>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section zobai-petro-section-soft\">\r\n    <div class=\"zobai-petro-eyebrow\">Industry Applications<\/div>\r\n    <h2 class=\"zobai-petro-title\">Where Safety Valves Are Used in Petrochemical Plants<\/h2>\r\n    <p class=\"zobai-petro-lead\">\r\n      Petrochemical pressure relief applications are usually more complex than utility service because the process medium may be flammable, toxic, corrosive, polymerizing, fouling or two-phase during relief. The safety valve should be reviewed as part of the process protection system, not only as a mechanical fitting.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-petro-grid\">\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Ethylene & Olefin Units<\/h3>\r\n        <p>\r\n          Used on cracking gas compressors, quench systems, demethanizers, deethanizers, process drums and refrigeration equipment. Selection should consider light hydrocarbon vapor, high flow demand, flare header back pressure and vibration.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Aromatics & BTX Units<\/h3>\r\n        <p>\r\n          Used on distillation columns, reboilers, overhead drums, heat exchangers and storage lines handling benzene, toluene, xylene and related hydrocarbon streams. Fire case and blocked outlet are common review points.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Polymerization Units<\/h3>\r\n        <p>\r\n          Used on PE, PP, PVC, styrene and resin reactors where runaway reaction, monomer vaporization, catalyst upset, fouling and polymer deposits may affect valve selection and maintenance intervals.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Reaction & Separation Systems<\/h3>\r\n        <p>\r\n          Reactors, separators, flash drums, columns and knockout vessels require relief case analysis for blocked outlet, control failure, heat input, gas generation and downstream discharge conditions.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Heat Exchanger Networks<\/h3>\r\n        <p>\r\n          Shell-and-tube exchangers, condensers and reboilers may require protection against tube rupture, blocked cooling, steam-side failure, thermal expansion and high-pressure side leakage into the low-pressure side.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Tankage, Loading & Utility Systems<\/h3>\r\n        <p>\r\n          Thermal relief valves and process PSVs may be used on storage transfer lines, loading skids, steam systems, nitrogen systems, hot oil systems and trapped liquid sections between isolation valves.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section\">\r\n    <div class=\"zobai-petro-eyebrow\">Relief Case Analysis<\/div>\r\n    <h2 class=\"zobai-petro-title\">Petrochemical PSV Selection Starts With the Overpressure Scenario<\/h2>\r\n    <p class=\"zobai-petro-lead\">\r\n      A petrochemical unit can have several credible overpressure cases. Final safety valve sizing should use the governing case and actual process data, not only the equipment nozzle size or an old valve model.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-petro-flow\">\r\n      <div class=\"zobai-petro-flow-item\">\r\n        <div class=\"zobai-petro-flow-num\">01<\/div>\r\n        <div>\r\n          <h3>Runaway Reaction or Excess Heat Input<\/h3>\r\n          <p>\r\n            Polymerization, oxidation, alkylation and other reactive services can generate rapid vapor, gas or two-phase relief loads. Review reaction kinetics, emergency cooling, inhibitor failure, catalyst upset and possible two-phase discharge.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-flow-item\">\r\n        <div class=\"zobai-petro-flow-num\">02<\/div>\r\n        <div>\r\n          <h3>Blocked Outlet or Closed Valve<\/h3>\r\n          <p>\r\n            Downstream isolation, fouling, valve closure or instrument failure can stop flow while upstream feed continues. This case is common for columns, reactors, drums, filters, compressors and heat exchanger systems.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-flow-item\">\r\n        <div class=\"zobai-petro-flow-num\">03<\/div>\r\n        <div>\r\n          <h3>External Fire Exposure<\/h3>\r\n          <p>\r\n            Hydrocarbon liquid in vessels and drums can vaporize under fire exposure. Fire-case capacity, material temperature limits, discharge destination and flare system capacity should be reviewed together.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-flow-item\">\r\n        <div class=\"zobai-petro-flow-num\">04<\/div>\r\n        <div>\r\n          <h3>Heat Exchanger Tube Rupture<\/h3>\r\n          <p>\r\n            A high-pressure process side can overpressure a low-pressure side. The review should include upstream pressure, exchanger geometry, phase behavior, downstream limits and transient relief path.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-flow-item\">\r\n        <div class=\"zobai-petro-flow-num\">05<\/div>\r\n        <div>\r\n          <h3>Thermal Expansion of Trapped Liquid<\/h3>\r\n          <p>\r\n            Benzene, toluene, xylene, monomer, solvent, hot oil or condensate trapped between closed valves can expand when heated. A compact thermal relief valve may be required even when the main process PSV is not relieving.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-flow-item\">\r\n        <div class=\"zobai-petro-flow-num\">06<\/div>\r\n        <div>\r\n          <h3>Utility or Control System Failure<\/h3>\r\n          <p>\r\n            Cooling water failure, reflux failure, steam regulator failure, nitrogen regulator failure or control valve malfunction can create pressure rise. Instrumented systems do not remove the need to evaluate mechanical relief protection.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section zobai-petro-section-soft\">\r\n    <div class=\"zobai-petro-eyebrow\">Application Case Data<\/div>\r\n    <h2 class=\"zobai-petro-title\">Petrochemical Safety Valve Application Cases with Typical RFQ Data<\/h2>\r\n    <p class=\"zobai-petro-lead\">\r\n      These application cases show how petrochemical safety valve requirements are typically described before model selection. Final sizing must be confirmed by project datasheet, applicable code, verified relief calculation and process safety review.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-petro-grid\">\r\n      <div class=\"zobai-petro-case zobai-petro-span-6\">\r\n        <div class=\"zobai-petro-case-top\">\r\n          <h3>Case 1: Polymerization Reactor Relief Valve<\/h3>\r\n          <span class=\"zobai-petro-case-tag\">Runaway Reaction<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-petro-case-data\">\r\n          <div><b>Protected equipment:<\/b> Polyolefin reactor<\/div>\r\n          <div><b>Medium:<\/b> Ethylene \/ propylene \/ hydrocarbon vapor<\/div>\r\n          <div><b>Normal pressure:<\/b> 22 barg<\/div>\r\n          <div><b>Set pressure:<\/b> 30 barg<\/div>\r\n          <div><b>Relieving temperature:<\/b> 90\u2013130\u00b0C<\/div>\r\n          <div><b>Relief concern:<\/b> Exothermic reaction and vapor generation<\/div>\r\n          <div><b>Discharge:<\/b> Closed flare or recovery system<\/div>\r\n          <div><b>Key review:<\/b> Two-phase potential, fouling, polymer deposits and seat leakage<\/div>\r\n        <\/div>\r\n        <p>\r\n          Reactor service requires more than normal gas sizing. Polymerizing media can create fouling or deposits around the seat and trim, while runaway scenarios may create high vapor generation or two-phase flow. Maintenance access, flushing strategy and material compatibility should be reviewed before quotation.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-case zobai-petro-span-6\">\r\n        <div class=\"zobai-petro-case-top\">\r\n          <h3>Case 2: Ethylene Cracking Gas Compressor PSV<\/h3>\r\n          <span class=\"zobai-petro-case-tag\">High Flow Gas<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-petro-case-data\">\r\n          <div><b>Protected equipment:<\/b> Compressor discharge line<\/div>\r\n          <div><b>Medium:<\/b> Cracked gas with light hydrocarbons<\/div>\r\n          <div><b>Normal pressure:<\/b> 28 barg<\/div>\r\n          <div><b>Set pressure:<\/b> 35 barg<\/div>\r\n          <div><b>Relieving temperature:<\/b> 80\u2013120\u00b0C<\/div>\r\n          <div><b>Relief concern:<\/b> Compressor surge or downstream blockage<\/div>\r\n          <div><b>Discharge:<\/b> Flare header<\/div>\r\n          <div><b>Key review:<\/b> Inlet loss, vibration, back pressure, chatter and certified capacity<\/div>\r\n        <\/div>\r\n        <p>\r\n          Compressor PSVs should be checked for stable operation. Oversizing, long inlet piping, pulsation or excessive discharge back pressure can lead to chatter and repeated seat damage. A pilot operated valve may be reviewed for clean high-pressure gas service, but only after confirming gas cleanliness and pilot line suitability.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-case zobai-petro-span-6\">\r\n        <div class=\"zobai-petro-case-top\">\r\n          <h3>Case 3: BTX Distillation Column Overhead Drum<\/h3>\r\n          <span class=\"zobai-petro-case-tag\">Fire \/ Blocked Outlet<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-petro-case-data\">\r\n          <div><b>Protected equipment:<\/b> Overhead accumulator<\/div>\r\n          <div><b>Medium:<\/b> Benzene \/ toluene \/ xylene vapor-liquid mixture<\/div>\r\n          <div><b>Normal pressure:<\/b> 1.8 barg<\/div>\r\n          <div><b>Set pressure:<\/b> 4.5 barg<\/div>\r\n          <div><b>Relieving temperature:<\/b> 60\u2013110\u00b0C<\/div>\r\n          <div><b>Relief concern:<\/b> Fire exposure or blocked vapor outlet<\/div>\r\n          <div><b>Discharge:<\/b> Flare or closed vapor recovery<\/div>\r\n          <div><b>Key review:<\/b> Hydrocarbon vapor load, liquid carryover and fire-case sizing<\/div>\r\n        <\/div>\r\n        <p>\r\n          Aromatics service requires attention to flammable vapor release and discharge routing. The valve should be selected using the governing case and the plant discharge system, not by drum nozzle size alone.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-case zobai-petro-span-6\">\r\n        <div class=\"zobai-petro-case-top\">\r\n          <h3>Case 4: Heat Exchanger Tube Rupture Protection<\/h3>\r\n          <span class=\"zobai-petro-case-tag\">Tube Rupture<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-petro-case-data\">\r\n          <div><b>Protected equipment:<\/b> Low-pressure exchanger side<\/div>\r\n          <div><b>High-pressure side:<\/b> Hydrocarbon liquid or vapor<\/div>\r\n          <div><b>Low-pressure side:<\/b> Cooling water or process fluid<\/div>\r\n          <div><b>Pressure concern:<\/b> High-pressure side leakage into low-pressure side<\/div>\r\n          <div><b>Relieving temperature:<\/b> Process-dependent<\/div>\r\n          <div><b>Discharge:<\/b> Closed relief or safe disposal system<\/div>\r\n          <div><b>Required data:<\/b> Pressure differential and exchanger geometry<\/div>\r\n          <div><b>Key review:<\/b> Transient relief rate, phase behavior and downstream limits<\/div>\r\n        <\/div>\r\n        <p>\r\n          Tube rupture cases are often missed in replacement projects. The existing valve size may not reflect current exchanger duty, pressure differential or modified operating conditions. Process data and exchanger configuration should be reviewed before selecting the valve.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-case zobai-petro-span-6\">\r\n        <div class=\"zobai-petro-case-top\">\r\n          <h3>Case 5: Acrylonitrile or Ammonia-Containing Service<\/h3>\r\n          <span class=\"zobai-petro-case-tag\">Toxic \/ Corrosive<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-petro-case-data\">\r\n          <div><b>Protected equipment:<\/b> Process vessel or absorber<\/div>\r\n          <div><b>Medium:<\/b> Toxic or reactive chemical vapor<\/div>\r\n          <div><b>Normal pressure:<\/b> Project-specific<\/div>\r\n          <div><b>Set pressure:<\/b> Project datasheet value<\/div>\r\n          <div><b>Relief concern:<\/b> Control failure, blocked outlet or vapor generation<\/div>\r\n          <div><b>Discharge:<\/b> Closed system, scrubber or flare depending on service<\/div>\r\n          <div><b>Material focus:<\/b> Body, trim, seal and gasket compatibility<\/div>\r\n          <div><b>Key review:<\/b> Toxic release control and tightness requirement<\/div>\r\n        <\/div>\r\n        <p>\r\n          Toxic petrochemical service usually requires tighter control of discharge destination and leakage. Material compatibility, seat tightness, bonnet design and documentation should be agreed before quotation.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-case zobai-petro-span-6\">\r\n        <div class=\"zobai-petro-case-top\">\r\n          <h3>Case 6: Solvent Transfer Line Thermal Relief<\/h3>\r\n          <span class=\"zobai-petro-case-tag\">Thermal Expansion<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-petro-case-data\">\r\n          <div><b>Protected equipment:<\/b> Isolated liquid line<\/div>\r\n          <div><b>Medium:<\/b> Toluene, xylene, solvent or monomer<\/div>\r\n          <div><b>Relief cause:<\/b> Trapped liquid expansion<\/div>\r\n          <div><b>Temperature change:<\/b> Ambient heating or process heat soak<\/div>\r\n          <div><b>Set pressure:<\/b> Below protected line limit<\/div>\r\n          <div><b>Discharge:<\/b> Return line, collection system or safe vessel<\/div>\r\n          <div><b>Material focus:<\/b> Chemical compatibility and seal material<\/div>\r\n          <div><b>Key review:<\/b> Outlet blockage, safe collection and small-flow stability<\/div>\r\n        <\/div>\r\n        <p>\r\n          Thermal relief valves are often small, but they prevent very high pressure in blocked-in liquid sections. For petrochemical solvents and monomers, the discharge destination and seal compatibility should be reviewed carefully.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section\">\r\n    <div class=\"zobai-petro-eyebrow\">Service Data Matrix<\/div>\r\n    <h2 class=\"zobai-petro-title\">Petrochemical Safety Valve Data Matrix<\/h2>\r\n\r\n    <div class=\"zobai-petro-table-wrap\">\r\n      <table class=\"zobai-petro-table\">\r\n        <thead>\r\n          <tr>\r\n            <th>Petrochemical Service<\/th>\r\n            <th>Typical Medium<\/th>\r\n            <th>Common Temperature Concern<\/th>\r\n            <th>Common Pressure Concern<\/th>\r\n            <th>Required Engineering Check<\/th>\r\n            <th>Risk if Missed<\/th>\r\n          <\/tr>\r\n        <\/thead>\r\n        <tbody>\r\n          <tr>\r\n            <td>Olefin unit<\/td>\r\n            <td>Ethylene, propylene, cracked gas, hydrogen-rich gas<\/td>\r\n            <td>Elevated compressor or process temperature<\/td>\r\n            <td>High gas flow, flare back pressure<\/td>\r\n            <td>Capacity, vibration, back pressure, gas properties<\/td>\r\n            <td>Chatter, seat damage or under-capacity<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Polymerization reactor<\/td>\r\n            <td>Monomer, solvent, catalyst residue, polymerizing vapor<\/td>\r\n            <td>Reaction heat and upset temperature<\/td>\r\n            <td>Runaway reaction, two-phase relief<\/td>\r\n            <td>Fouling, deposits, two-phase behavior, discharge system<\/td>\r\n            <td>Blocked seat, unstable relief or insufficient capacity<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Aromatics distillation<\/td>\r\n            <td>Benzene, toluene, xylene, hydrocarbon vapor<\/td>\r\n            <td>Column, reboiler and fire-case temperature<\/td>\r\n            <td>Blocked outlet, fire exposure, reflux failure<\/td>\r\n            <td>Fire case, vapor load, material compatibility<\/td>\r\n            <td>Undersized PSV or unsafe hydrocarbon discharge<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Heat exchanger network<\/td>\r\n            <td>Hydrocarbon, steam, cooling water, process fluid<\/td>\r\n            <td>High differential temperature<\/td>\r\n            <td>Tube rupture and thermal expansion<\/td>\r\n            <td>Pressure differential, exchanger geometry, relief path<\/td>\r\n            <td>Low-pressure side overpressure<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Corrosive chemical service<\/td>\r\n            <td>Acidic gas, alkaline fluid, chlorinated stream, ammonia-containing vapor<\/td>\r\n            <td>Process-dependent<\/td>\r\n            <td>Blocked outlet or vapor generation<\/td>\r\n            <td>Body, trim, spring, seal and gasket compatibility<\/td>\r\n            <td>Corrosion leakage, sticking or premature failure<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Storage and transfer<\/td>\r\n            <td>Solvent, monomer, condensate, hot oil<\/td>\r\n            <td>Ambient heating or heat tracing<\/td>\r\n            <td>Trapped liquid thermal expansion<\/td>\r\n            <td>Set pressure, discharge destination, seal material<\/td>\r\n            <td>Line rupture or unsafe discharge<\/td>\r\n          <\/tr>\r\n        <\/tbody>\r\n      <\/table>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section zobai-petro-section-soft\">\r\n    <div class=\"zobai-petro-eyebrow\">Selection Framework<\/div>\r\n    <h2 class=\"zobai-petro-title\">How to Specify a Petrochemical Safety Valve Correctly<\/h2>\r\n\r\n    <div class=\"zobai-petro-grid\">\r\n      <div class=\"zobai-petro-card zobai-petro-span-6\">\r\n        <h3>1. Define the protected equipment<\/h3>\r\n        <p>\r\n          Confirm whether the valve protects a reactor, column, drum, compressor, heat exchanger, storage line, utility system or process vessel. Equipment type defines the pressure boundary, relief connection and documentation requirement.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-6\">\r\n        <h3>2. Confirm the governing relief case<\/h3>\r\n        <p>\r\n          Petrochemical overpressure may come from blocked outlet, fire exposure, runaway reaction, exchanger tube rupture, cooling failure, reflux failure, regulator failure or thermal expansion. The governing case decides capacity.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-6\">\r\n        <h3>3. Check medium and phase behavior<\/h3>\r\n        <p>\r\n          Gas, vapor, liquid, flashing liquid and two-phase relief behave differently. Monomers, solvents, cracked gas, aromatics, ammonia and polymerizing fluids should not be treated as generic hydrocarbons.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-6\">\r\n        <h3>4. Review fouling and polymerization risk<\/h3>\r\n        <p>\r\n          Polymer deposits, coke, gum, catalyst fines and viscous media can affect seat tightness, lift stability and maintenance intervals. This is especially important for polymer, olefin and high-temperature hydrocarbon systems.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-6\">\r\n        <h3>5. Review back pressure and discharge route<\/h3>\r\n        <p>\r\n          Many petrochemical PSVs discharge to flare, scrubber, recovery or closed collection systems. Back pressure can affect capacity and stability, while toxic or flammable media require safe discharge routing.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-6\">\r\n        <h3>6. Confirm material and testing requirements<\/h3>\r\n        <p>\r\n          Body, trim, spring, bellows, soft seat, gasket and bolting materials should match chemical compatibility, temperature, corrosion and owner specifications. Seat tightness and pressure test documents should be confirmed before order.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section\">\r\n    <div class=\"zobai-petro-eyebrow\">Installation & Discharge<\/div>\r\n    <h2 class=\"zobai-petro-title\">Petrochemical Safety Valves Must Be Reviewed With the Relief System<\/h2>\r\n\r\n    <div class=\"zobai-petro-grid\">\r\n      <div class=\"zobai-petro-card zobai-petro-span-7\">\r\n        <h3>Why piping and discharge destination matter<\/h3>\r\n        <p>\r\n          A petrochemical PSV often discharges into a flare header, scrubber, closed recovery system or collection vessel. The outlet system can create back pressure, condensation, liquid pockets, corrosion, polymer deposits or toxic release concerns. The inlet system can also create excessive pressure loss and valve chatter if the layout is poor.\r\n        <\/p>\r\n        <p>\r\n          The safety valve should be reviewed with its inlet piping, outlet piping, drainage, support, maintenance access and downstream treatment system. This is especially important for flammable, toxic, corrosive, polymerizing and high-temperature media.\r\n        <\/p>\r\n        <div class=\"zobai-petro-chip-row\">\r\n          <span class=\"zobai-petro-chip\">Flare Header<\/span>\r\n          <span class=\"zobai-petro-chip\">Scrubber Discharge<\/span>\r\n          <span class=\"zobai-petro-chip\">Back Pressure<\/span>\r\n          <span class=\"zobai-petro-chip\">Fouling Risk<\/span>\r\n          <span class=\"zobai-petro-chip\">Inlet Loss<\/span>\r\n          <span class=\"zobai-petro-chip\">Toxic Release Control<\/span>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-5\">\r\n        <h3>Field installation checks<\/h3>\r\n        <ul class=\"zobai-petro-list\">\r\n          <li>Keep inlet pressure loss within the project design limit.<\/li>\r\n          <li>Avoid liquid pockets and blocked low points in discharge piping.<\/li>\r\n          <li>Check back pressure from flare, scrubber or recovery systems.<\/li>\r\n          <li>Support outlet piping without loading the valve body.<\/li>\r\n          <li>Provide access for inspection, lifting device operation and maintenance.<\/li>\r\n          <li>Confirm flushing, isolation and cleaning requirements for fouling service.<\/li>\r\n          <li>Route toxic or flammable discharge to an approved safe destination.<\/li>\r\n        <\/ul>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section zobai-petro-section-soft\">\r\n    <div class=\"zobai-petro-eyebrow\">Standards & Documentation<\/div>\r\n    <h2 class=\"zobai-petro-title\">Standards and Documents to Confirm Before Ordering<\/h2>\r\n\r\n    <div class=\"zobai-petro-grid\">\r\n      <div class=\"zobai-petro-card zobai-petro-span-6\">\r\n        <h3>Common standard references<\/h3>\r\n        <p>\r\n          Petrochemical pressure relief specifications may reference API, ASME, ISO, EN, GB or owner standards depending on the facility location, protected equipment, medium and inspection requirement. The applicable standard should be confirmed before quotation.\r\n        <\/p>\r\n        <ul class=\"zobai-petro-list\">\r\n          <li><a href=\"\/standards\/api-520\/\">API 520<\/a> for pressure-relieving device sizing and selection reference.<\/li>\r\n          <li><a href=\"\/standards\/api-521\/\">API 521<\/a> for pressure-relieving and depressuring system review.<\/li>\r\n          <li><a href=\"\/standards\/api-526\/\">API 526<\/a> when flanged steel pressure relief valve dimensions and ratings are specified.<\/li>\r\n          <li><a href=\"\/standards\/api-527\/\">API 527<\/a> when seat tightness testing is required.<\/li>\r\n          <li>ASME BPVC or local pressure vessel requirements where applicable.<\/li>\r\n          <li>ISO 4126 references when project specifications require excessive pressure protection safety valve standards.<\/li>\r\n          <li>Owner material and inspection specifications for toxic, corrosive, polymerizing or high-temperature service.<\/li>\r\n        <\/ul>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-6\">\r\n        <h3>Typical document package<\/h3>\r\n        <p>\r\n          Documentation should be agreed before manufacturing, especially for reactor, compressor, column, heat exchanger, toxic service, flare-connected and high-temperature applications.\r\n        <\/p>\r\n        <ul class=\"zobai-petro-list\">\r\n          <li>Technical datasheet with model, size, orifice, set pressure and connection.<\/li>\r\n          <li>Sizing calculation or certified relieving capacity confirmation.<\/li>\r\n          <li>Set pressure calibration record.<\/li>\r\n          <li>Pressure test report and seat tightness test report when required.<\/li>\r\n          <li>Material certificate for pressure-retaining parts and trim when specified.<\/li>\r\n          <li>General arrangement drawing, dimension and weight.<\/li>\r\n          <li>Nameplate, tag number and project marking confirmation.<\/li>\r\n          <li>Cleaning, degreasing or special packing requirements when specified.<\/li>\r\n        <\/ul>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section\">\r\n    <div class=\"zobai-petro-eyebrow\">RFQ Checklist<\/div>\r\n    <h2 class=\"zobai-petro-title\">Petrochemical Safety Valve RFQ Data Checklist<\/h2>\r\n\r\n    <div class=\"zobai-petro-table-wrap\">\r\n      <table class=\"zobai-petro-table\">\r\n        <thead>\r\n          <tr>\r\n            <th>Required Data<\/th>\r\n            <th>Why It Matters<\/th>\r\n            <th>Example Input<\/th>\r\n          <\/tr>\r\n        <\/thead>\r\n        <tbody>\r\n          <tr>\r\n            <td>Protected equipment<\/td>\r\n            <td>Defines the pressure boundary and design basis.<\/td>\r\n            <td>Reactor, distillation column, overhead drum, compressor, exchanger<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Relief scenario<\/td>\r\n            <td>Determines the governing required relieving capacity.<\/td>\r\n            <td>Runaway reaction, blocked outlet, fire case, tube rupture, thermal expansion<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Medium and phase<\/td>\r\n            <td>Affects sizing method, material and discharge behavior.<\/td>\r\n            <td>Ethylene, propylene, benzene, toluene, ammonia, solvent, two-phase flow<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Set pressure<\/td>\r\n            <td>Defines valve opening pressure.<\/td>\r\n            <td>4.5 barg, 30 barg, 150 psi, 25 MPa<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Operating pressure<\/td>\r\n            <td>Confirms operating margin and leakage risk.<\/td>\r\n            <td>Normal and maximum operating pressure<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Required relieving capacity<\/td>\r\n            <td>Confirms whether the selected valve can protect the system.<\/td>\r\n            <td>kg\/h, Nm\u00b3\/h, SCFM, t\/h, GPM<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Relieving temperature<\/td>\r\n            <td>Affects material, spring, seal and pressure rating.<\/td>\r\n            <td>60\u00b0C, 120\u00b0C, 250\u00b0C, 450\u00b0C<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Back pressure<\/td>\r\n            <td>Influences valve stability, capacity and configuration.<\/td>\r\n            <td>Atmospheric discharge, flare header, scrubber, variable back pressure<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Fouling or polymerization risk<\/td>\r\n            <td>Affects seat design, maintenance and flushing requirements.<\/td>\r\n            <td>Polymer deposits, coke, gum, catalyst fines, viscous fluid<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Material requirement<\/td>\r\n            <td>Prevents corrosion, sticking, embrittlement and compatibility failure.<\/td>\r\n            <td>Carbon steel, stainless steel, alloy, PTFE seat, special trim<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Connection and rating<\/td>\r\n            <td>Ensures mechanical compatibility with piping and equipment.<\/td>\r\n            <td>RF flange, RTJ flange, NPT, BW, Class 150\u20132500<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Required documents<\/td>\r\n            <td>Avoids delays after purchase order.<\/td>\r\n            <td>Datasheet, drawing, MTC, calibration report, pressure test, seat tightness report<\/td>\r\n          <\/tr>\r\n        <\/tbody>\r\n      <\/table>\r\n    <\/div>\r\n\r\n    <p class=\"zobai-petro-note\">\r\n      Final selection must be confirmed by project datasheet, process conditions, applicable code, verified sizing basis and engineering review.\r\n    <\/p>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section zobai-petro-section-soft\">\r\n    <div class=\"zobai-petro-eyebrow\">Selection Errors<\/div>\r\n    <h2 class=\"zobai-petro-title\">Common Petrochemical Safety Valve Selection Mistakes<\/h2>\r\n\r\n    <div class=\"zobai-petro-grid\">\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Ignoring runaway reaction cases<\/h3>\r\n        <p>\r\n          Reactor PSVs should not be selected from normal vapor flow only. Runaway reaction, inhibitor failure, catalyst upset or cooling failure can create much higher relief demand.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Treating polymer service as clean gas<\/h3>\r\n        <p>\r\n          Polymer deposits, gum, coke and viscous fluids can affect valve lift, seat tightness and maintenance intervals. Fouling risk should be included in the valve specification.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Ignoring flare or scrubber back pressure<\/h3>\r\n        <p>\r\n          Back pressure can reduce capacity and create instability. Closed discharge systems require review before choosing conventional, bellows balanced or pilot operated designs.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Replacing a PSV by appearance<\/h3>\r\n        <p>\r\n          A replacement valve may look similar but have different orifice, set pressure, material, seat type, spring range or back pressure limit. Nameplate and datasheet must be checked.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Missing tube rupture scenarios<\/h3>\r\n        <p>\r\n          Heat exchanger tube rupture can create severe overpressure on the low-pressure side. It should be reviewed with pressure differential, geometry and fluid phase data.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-card zobai-petro-span-4\">\r\n        <h3>Forgetting toxic discharge control<\/h3>\r\n        <p>\r\n          Toxic or flammable petrochemical media should not be discharged casually. The outlet path, scrubber, flare, recovery system or collection system must match the process safety requirement.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section\">\r\n    <div class=\"zobai-petro-eyebrow\">Related Engineering Resources<\/div>\r\n    <h2 class=\"zobai-petro-title\">Continue Your Petrochemical Pressure Relief Review<\/h2>\r\n    <p class=\"zobai-petro-lead\">\r\n      These related pages help move from petrochemical application requirements to detailed safety valve selection, sizing, service condition review and standard confirmation.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-petro-link-grid\">\r\n      <a class=\"zobai-petro-link-card\" href=\"\/engineering\/safety-valve-selection-guide\/\">\r\n        <strong>Safety Valve Selection Guide<\/strong>\r\n        <span>Step-by-step guidance for selecting safety valves by medium, pressure, capacity, material and installation condition.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-petro-link-card\" href=\"\/engineering\/safety-valve-sizing\/\">\r\n        <strong>Safety Valve Sizing<\/strong>\r\n        <span>Review required capacity, orifice selection, pressure data and sizing inputs before RFQ.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-petro-link-card\" href=\"\/equipment\/reactors\/\">\r\n        <strong>Reactor Safety Valves<\/strong>\r\n        <span>For polymerization, reaction, heat input, gas generation and runaway reaction protection.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-petro-link-card\" href=\"\/equipment\/compressors\/\">\r\n        <strong>Compressor Safety Valves<\/strong>\r\n        <span>For cracked gas, process gas, hydrogen-rich gas and high-flow compressor discharge applications.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-petro-link-card\" href=\"\/equipment\/heat-exchangers\/\">\r\n        <strong>Heat Exchanger Safety Valves<\/strong>\r\n        <span>For tube rupture, thermal expansion, blocked cooling and reboiler-related overpressure cases.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-petro-link-card\" href=\"\/applications\/high-back-pressure\/\">\r\n        <strong>High Back Pressure Service<\/strong>\r\n        <span>Important for flare headers, scrubber discharge and closed relief systems.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-petro-link-card\" href=\"\/applications\/corrosive-service\/\">\r\n        <strong>Corrosive Service<\/strong>\r\n        <span>For acid gas, ammonia-containing streams, chlorinated media and chemically aggressive service.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-petro-link-card\" href=\"\/applications\/high-temperature\/\">\r\n        <strong>High Temperature Service<\/strong>\r\n        <span>For hot hydrocarbons, reboilers, steam interfaces, hot oil and elevated temperature process service.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-petro-link-card\" href=\"\/applications\/frequent-cycling\/\">\r\n        <strong>Frequent Cycling Service<\/strong>\r\n        <span>For systems with unstable operation, repeated pressure rise, compressor pulsation or control disturbances.<\/span>\r\n      <\/a>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section zobai-petro-section-soft\">\r\n    <div class=\"zobai-petro-eyebrow\">FAQ<\/div>\r\n    <h2 class=\"zobai-petro-title\">Petrochemical Safety Valve FAQ<\/h2>\r\n\r\n    <div class=\"zobai-petro-accordion\" data-zobai-petro-accordion>\r\n      <div class=\"zobai-petro-acc-item is-open\">\r\n        <button class=\"zobai-petro-acc-btn\" type=\"button\">What is the most important factor when selecting a petrochemical safety valve? <span>+<\/span><\/button>\r\n        <div class=\"zobai-petro-acc-body\">\r\n          The most important factor is the governing relief scenario. Runaway reaction, blocked outlet, fire exposure, tube rupture, cooling failure and thermal expansion can create different required relieving capacities.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-acc-item\">\r\n        <button class=\"zobai-petro-acc-btn\" type=\"button\">Why is polymerization service difficult for safety valves? <span>+<\/span><\/button>\r\n        <div class=\"zobai-petro-acc-body\">\r\n          Polymerizing service may create deposits, gum, coke, viscous flow or fouling around the seat and trim. These conditions can affect lift, leakage, reseating and maintenance intervals, so they must be stated in the RFQ.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-acc-item\">\r\n        <button class=\"zobai-petro-acc-btn\" type=\"button\">When should a bellows balanced safety valve be reviewed? <span>+<\/span><\/button>\r\n        <div class=\"zobai-petro-acc-body\">\r\n          A bellows balanced safety valve should be reviewed when outlet back pressure may affect valve performance, especially when the valve discharges into a flare header, scrubber, recovery system or closed relief system.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-acc-item\">\r\n        <button class=\"zobai-petro-acc-btn\" type=\"button\">What data is required for a petrochemical PSV quotation? <span>+<\/span><\/button>\r\n        <div class=\"zobai-petro-acc-body\">\r\n          Provide protected equipment, relief scenario, medium, phase, set pressure, operating pressure, required capacity, relieving temperature, back pressure, fouling risk, material requirement, connection, standard and required documents.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-acc-item\">\r\n        <button class=\"zobai-petro-acc-btn\" type=\"button\">Can a replacement petrochemical PSV be selected by nameplate only? <span>+<\/span><\/button>\r\n        <div class=\"zobai-petro-acc-body\">\r\n          No. Nameplate data is useful, but replacement should also confirm current process conditions, relief case, required capacity, back pressure, material compatibility, fouling risk, seat tightness and documentation requirements.\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-petro-section\">\r\n    <div class=\"zobai-petro-rfq\">\r\n      <div>\r\n        <div class=\"zobai-petro-eyebrow\">Engineering RFQ Support<\/div>\r\n        <h2>Prepare a Complete Petrochemical PSV Datasheet Before Quotation<\/h2>\r\n        <p>\r\n          Send the protected equipment, relief scenario, medium, phase, set pressure, operating pressure, required capacity, temperature, back pressure, fouling risk, material requirement, connection standard and required documents. A complete datasheet helps avoid unsafe assumptions and speeds up engineering review.\r\n        <\/p>\r\n        <div class=\"zobai-petro-btn-row\">\r\n          <a class=\"zobai-petro-btn zobai-petro-btn-primary\" href=\"\/contact\/\">Request Engineering Quote<\/a>\r\n          <a class=\"zobai-petro-btn zobai-petro-btn-secondary\" href=\"\/ask-an-engineer\/\">Ask an Engineer<\/a>\r\n          <a class=\"zobai-petro-btn zobai-petro-btn-secondary\" href=\"\/catalog-pdf\/\">Download Catalog PDF<\/a>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-petro-rfq-box\">\r\n        <h3>Minimum RFQ data<\/h3>\r\n        <div class=\"zobai-petro-rfq-grid\">\r\n          <div class=\"zobai-petro-rfq-item\">Protected Equipment<\/div>\r\n          <div class=\"zobai-petro-rfq-item\">Relief Scenario<\/div>\r\n          <div class=\"zobai-petro-rfq-item\">Medium \/ Phase<\/div>\r\n          <div class=\"zobai-petro-rfq-item\">Set Pressure<\/div>\r\n          <div class=\"zobai-petro-rfq-item\">Operating Pressure<\/div>\r\n          <div class=\"zobai-petro-rfq-item\">Required Capacity<\/div>\r\n          <div class=\"zobai-petro-rfq-item\">Temperature<\/div>\r\n          <div class=\"zobai-petro-rfq-item\">Back Pressure<\/div>\r\n          <div class=\"zobai-petro-rfq-item\">Fouling Risk<\/div>\r\n          <div class=\"zobai-petro-rfq-item\">Material<\/div>\r\n          <div class=\"zobai-petro-rfq-item\">Connection<\/div>\r\n          <div class=\"zobai-petro-rfq-item\">Documents<\/div>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n<\/div>\r\n\r\n<script>\r\n  (function () {\r\n    var accordions = document.querySelectorAll('[data-zobai-petro-accordion]');\r\n    accordions.forEach(function (accordion) {\r\n      var items = accordion.querySelectorAll('.zobai-petro-acc-item');\r\n\r\n      items.forEach(function (item) {\r\n        var button = item.querySelector('.zobai-petro-acc-btn');\r\n        button.addEventListener('click', function () {\r\n          var isOpen = item.classList.contains('is-open');\r\n\r\n          items.forEach(function (i) {\r\n            i.classList.remove('is-open');\r\n          });\r\n\r\n          if (!isOpen) {\r\n            item.classList.add('is-open');\r\n          }\r\n        });\r\n      });\r\n    });\r\n  })();\r\n<\/script>\r\n\r\n<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"What is the most important factor when selecting a petrochemical safety valve?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"The most important factor is the governing relief scenario. 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cmsmasters-effect-hover-type-element cmsmasters-block-default e-con e-child\" data-id=\"355cf6de\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;position&quot;:&quot;absolute&quot;,&quot;cms_transform_hover_type&quot;:&quot;element&quot;}\">\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6a90e83b e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"6a90e83b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-7089614b e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"7089614b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2a1edd00 elementor-position-inline-start elementor-mobile-position-inline-start elementor-view-default cmsmasters-block-default cmsmasters-sticky-default elementor-invisible elementor-widget elementor-widget-icon-box\" data-id=\"2a1edd00\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;cmsmasters-fade-in-left&quot;}\" data-widget_type=\"icon-box.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\n\t\t\t\t<span  class=\"elementor-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrows-2\"><\/i>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\t\t\t\t\t<h3 class=\"elementor-icon-box-title\">\n\t\t\t\t\t\t<span  >\n\t\t\t\t\t\t\tFEATURED SERIES\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1cf5a766 elementor-widget__width-initial cmsmasters-block-default cmsmasters-sticky-default elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"1cf5a766\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;cmsmasters-fade-in-up&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Featured Safety Valve Series<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c0f1d5e elementor-widget__width-initial cmsmasters-block-default cmsmasters-sticky-default elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"3c0f1d5e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;cmsmasters-fade-in-right&quot;,&quot;_animation_tablet&quot;:&quot;cmsmasters-fade-in-up&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div class=\"elementor-heading-title elementor-size-default\">Explore selected ZOBAI safety valve series for high-pressure service, back pressure conditions, steam systems, hygienic process lines, and continuous protection applications. These featured models help buyers and engineers compare product directions across different service conditions.<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16225ba elementor-pagination-type-bullets elementor-arrows-position-inside elementor-pagination-position-outside cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-n-carousel\" data-id=\"16225ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;carousel_items&quot;:[{&quot;slide_title&quot;:&quot;Slide #1&quot;,&quot;_id&quot;:&quot;01fe9a5&quot;},{&quot;slide_title&quot;:&quot;Slide #1&quot;,&quot;_id&quot;:&quot;945d82b&quot;},{&quot;slide_title&quot;:&quot;Slide #1&quot;,&quot;_id&quot;:&quot;8ec93bd&quot;},{&quot;slide_title&quot;:&quot;Slide #1&quot;,&quot;_id&quot;:&quot;ee987c2&quot;}],&quot;slides_to_show&quot;:&quot;4&quot;,&quot;slides_to_show_tablet&quot;:&quot;2&quot;,&quot;slides_to_show_mobile&quot;:&quot;1&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;infinite&quot;:&quot;yes&quot;,&quot;speed&quot;:500,&quot;offset_sides&quot;:&quot;none&quot;,&quot;arrows&quot;:&quot;yes&quot;,&quot;pagination&quot;:&quot;bullets&quot;,&quot;image_spacing_custom&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:10,&quot;sizes&quot;:[]},&quot;image_spacing_custom_widescreen&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;image_spacing_custom_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;image_spacing_custom_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-carousel.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-carousel swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Carousel\" dir=\"ltr\">\n\t\t\t<div class=\"swiper-wrapper\" aria-live=\"off\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" data-slide=\"1\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"1 of 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-620afc71 e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"620afc71\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-5598cfec e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5598cfec\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-270e4b60 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"270e4b60\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-664c5df6 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"664c5df6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6788adce cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"6788adce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"850\" height=\"850\" src=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service.webp\" class=\"attachment-large size-large wp-image-51693\" alt=\"A46Y pilot-operated relief valve with external pilot tubing and flanged body\" srcset=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service.webp 850w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service-300x300.webp 300w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service-150x150.webp 150w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service-768x768.webp 768w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service-260x260.webp 260w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-445f2d05 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"445f2d05\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-62116dbe e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"62116dbe\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7675024b cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"7675024b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ZBA46 Series Pilot Operated Safety Valves<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6e436e38 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"6e436e38\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-51399870 cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"51399870\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;cms_transform_hover_type&quot;:&quot;element&quot;}\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/zobai.com\/ru\/applications\/petrochemical\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrows-1\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e69b3db cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"7e69b3db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Pilot operated safety valves for higher-pressure service requiring tighter sealing and stable set pressure performance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" data-slide=\"2\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"2 of 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2a449068 e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"2a449068\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-202b9af0 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"202b9af0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-1256a6ab e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"1256a6ab\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-633d7b4c e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"633d7b4c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9c342d7 cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"9c342d7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"850\" height=\"850\" src=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/wa42y-bellows-balanced-full-lift-safety-valve-back-pressure.webp\" class=\"attachment-large size-large wp-image-51697\" alt=\"WA42Y bellows-balanced full-lift safety valve with flanged connections\" srcset=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/wa42y-bellows-balanced-full-lift-safety-valve-back-pressure.webp 850w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/wa42y-bellows-balanced-full-lift-safety-valve-back-pressure-300x300.webp 300w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/wa42y-bellows-balanced-full-lift-safety-valve-back-pressure-150x150.webp 150w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/wa42y-bellows-balanced-full-lift-safety-valve-back-pressure-768x768.webp 768w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/wa42y-bellows-balanced-full-lift-safety-valve-back-pressure-260x260.webp 260w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6d224c9f e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"6d224c9f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-3793db6f e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"3793db6f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-23b8db27 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"23b8db27\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ZBWA42 Series Bellows Balanced Safety Valves<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-64ae47e8 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"64ae47e8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-36814001 cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"36814001\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;cms_transform_hover_type&quot;:&quot;element&quot;}\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/zobai.com\/ru\/applications\/petrochemical\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrows-1\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1a834674 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"1a834674\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Bellows balanced safety valves for back pressure applications where stable performance is important.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" data-slide=\"3\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"3 of 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-509620b e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"509620b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-a501766 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"a501766\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-4d1860a8 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"4d1860a8\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-5350866a e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5350866a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-14ece0d6 cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"14ece0d6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"850\" height=\"850\" src=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service.webp\" class=\"attachment-large size-large wp-image-51693\" alt=\"A46Y pilot-operated relief valve with external pilot tubing and flanged body\" srcset=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service.webp 850w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service-300x300.webp 300w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service-150x150.webp 150w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service-768x768.webp 768w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/a46y-pilot-operated-relief-valve-high-pressure-service-260x260.webp 260w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-573ca1d7 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"573ca1d7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-71b8ea7e e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"71b8ea7e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-38fb5e4b cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"38fb5e4b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ZBA68 Series High Temperature Steam Safety Valves<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5aef7fd e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5aef7fd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5aa5f435 cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"5aa5f435\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;cms_transform_hover_type&quot;:&quot;element&quot;}\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/zobai.com\/ru\/applications\/petrochemical\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrows-1\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b4113e5 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"2b4113e5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>High temperature steam safety valves for boilers, steam lines, and other elevated-temperature systems.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" data-slide=\"4\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"4 of 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4c16dd12 e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"4c16dd12\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-2c295a16 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"2c295a16\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-4bf20439 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"4bf20439\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-55099eb1 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"55099eb1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1c394e22 cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"1c394e22\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"850\" height=\"850\" src=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/svl488-stainless-steel-safety-valve-cleaning-system.webp\" class=\"attachment-large size-large wp-image-51695\" alt=\"SVL488 stainless steel safety valve for cleaning systems with sanitary clamp connection and lifting lever\" srcset=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/svl488-stainless-steel-safety-valve-cleaning-system.webp 850w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/svl488-stainless-steel-safety-valve-cleaning-system-300x300.webp 300w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/svl488-stainless-steel-safety-valve-cleaning-system-150x150.webp 150w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/svl488-stainless-steel-safety-valve-cleaning-system-768x768.webp 768w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/04\/svl488-stainless-steel-safety-valve-cleaning-system-260x260.webp 260w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-14bb1056 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"14bb1056\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-7e1207d5 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"7e1207d5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-50ac56a5 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"50ac56a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">SVL488 Series Sanitary Safety Valves<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-154e3e03 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"154e3e03\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5ff880bc cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"5ff880bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;cms_transform_hover_type&quot;:&quot;element&quot;}\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/zobai.com\/ru\/applications\/petrochemical\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrows-1\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-49814a53 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"49814a53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Sanitary safety valves for hygienic process lines and cleaning systems requiring cleanable pressure protection.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\" aria-label=\"Previous\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-left\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M646 125C629 125 613 133 604 142L308 442C296 454 292 471 292 487 292 504 296 521 308 533L604 854C617 867 629 875 646 875 663 875 679 871 692 858 704 846 713 829 713 812 713 796 708 779 692 767L438 487 692 225C700 217 708 204 708 187 708 171 704 154 692 142 675 129 663 125 646 125Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\" aria-label=\"Next\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-right\" viewBox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M696 533C708 521 713 504 713 487 713 471 708 454 696 446L400 146C388 133 375 125 354 125 338 125 325 129 313 142 300 154 292 171 292 187 292 204 296 221 308 233L563 492 304 771C292 783 288 800 288 817 288 833 296 850 308 863 321 871 338 875 354 875 371 875 388 867 400 854L696 533Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Home Petrochemical Safety Valves for Process Pressure Relief CONTACT SALES Petrochemical Pressure Relief Petrochemical Safety Valves for Process Pressure Relief Systems Petrochemical safety valves protect reactors, distillation columns, compressors, heat exchangers, storage systems, polymerization units, steam systems and process vessels from overpressure. In petrochemical plants, a PSV or PRV must be selected from the relief&#8230;<\/p>","protected":false},"author":2,"featured_media":0,"parent":52780,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-53083","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/pages\/53083","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/comments?post=53083"}],"version-history":[{"count":10,"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/pages\/53083\/revisions"}],"predecessor-version":[{"id":53094,"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/pages\/53083\/revisions\/53094"}],"up":[{"embeddable":true,"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/pages\/52780"}],"wp:attachment":[{"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/media?parent=53083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}