{"id":53190,"date":"2026-05-15T09:11:42","date_gmt":"2026-05-15T09:11:42","guid":{"rendered":"https:\/\/zobai.com\/?page_id=53190"},"modified":"2026-05-15T09:15:39","modified_gmt":"2026-05-15T09:15:39","slug":"vacuum-service","status":"publish","type":"page","link":"https:\/\/zobai.com\/fr\/applications\/vacuum-service\/","title":{"rendered":"Service de vide"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"53190\" class=\"elementor elementor-53190\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-337120e6 e-con-full e-flex cmsmasters-bg-hide-none cmsmasters-bg-hide-none cmsmasters-block-default e-con e-parent\" data-id=\"337120e6\" 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-105c64ef e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"105c64ef\" 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-4a7c22f5 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=\"4a7c22f5\" 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-bd68659 elementor-widget__width-initial cmsmasters-block-default cmsmasters-sticky-default elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"bd68659\" 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\">Vacuum Service Safety Valves and Vacuum Relief Valves for Tanks, Vessels and Process Systems<\/h1>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-757dd90d e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"757dd90d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6de04657 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=\"6de04657\" 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\/fr\/?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-7bb4323 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"7bb4323\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6c74e709 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"6c74e709\" 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-292ea268 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=\"292ea268\" 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-a8ac0dd e-con-full e-flex cmsmasters-block-default e-con e-parent\" data-id=\"a8ac0dd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3b62e036 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-html\" data-id=\"3b62e036\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>\r\n  .zobai-vac-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-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-vac-page * {\r\n    box-sizing: border-box;\r\n  }\r\n\r\n  .zobai-vac-section {\r\n    max-width: 100%;\r\n    margin: 0 auto;\r\n    padding: 88px 80px;\r\n  }\r\n\r\n  .zobai-vac-section-soft {\r\n    background: #f8faf9;\r\n  }\r\n\r\n  .zobai-vac-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-vac-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-vac-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-vac-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-vac-grid {\r\n    display: grid;\r\n    grid-template-columns: repeat(12, 1fr);\r\n    gap: 28px;\r\n  }\r\n\r\n  .zobai-vac-span-4 { grid-column: span 4; }\r\n  .zobai-vac-span-5 { grid-column: span 5; }\r\n  .zobai-vac-span-6 { grid-column: span 6; }\r\n  .zobai-vac-span-7 { grid-column: span 7; }\r\n  .zobai-vac-span-12 { grid-column: span 12; }\r\n\r\n  .zobai-vac-card,\r\n  .zobai-vac-case {\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-vac-card h2,\r\n  .zobai-vac-card h3,\r\n  .zobai-vac-case h3 {\r\n    margin: 0 0 14px;\r\n    color: var(--z-ink);\r\n  }\r\n\r\n  .zobai-vac-card h3,\r\n  .zobai-vac-case h3 {\r\n    font-size: 24px;\r\n    line-height: 1.25;\r\n  }\r\n\r\n  .zobai-vac-card p,\r\n  .zobai-vac-case 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-vac-card p:last-child,\r\n  .zobai-vac-case p:last-child {\r\n    margin-bottom: 0;\r\n  }\r\n\r\n  .zobai-vac-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-vac-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-vac-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-vac-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-vac-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-vac-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-vac-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-vac-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-vac-flow {\r\n    display: grid;\r\n    gap: 16px;\r\n    margin-top: 28px;\r\n  }\r\n\r\n  .zobai-vac-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-vac-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-vac-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-vac-flow-item p {\r\n    margin: 0;\r\n    color: #4d5863;\r\n    line-height: 1.68;\r\n  }\r\n\r\n  .zobai-vac-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-vac-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-vac-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-vac-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-vac-table tr:nth-child(even) td {\r\n    background: #fbfcfc;\r\n  }\r\n\r\n  .zobai-vac-table tr:last-child td {\r\n    border-bottom: 0;\r\n  }\r\n\r\n  .zobai-vac-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-vac-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-vac-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-vac-case {\r\n    border-radius: 24px;\r\n    padding: 28px;\r\n  }\r\n\r\n  .zobai-vac-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-vac-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-vac-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-vac-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-vac-case-data b {\r\n    color: var(--z-ink);\r\n  }\r\n\r\n  .zobai-vac-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-vac-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-vac-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-vac-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-vac-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-vac-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-vac-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-vac-accordion {\r\n    display: grid;\r\n    gap: 14px;\r\n  }\r\n\r\n  .zobai-vac-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-vac-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-vac-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-vac-acc-item.is-open .zobai-vac-acc-btn span {\r\n    transform: rotate(45deg);\r\n  }\r\n\r\n  .zobai-vac-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-vac-acc-item.is-open .zobai-vac-acc-body {\r\n    display: block;\r\n  }\r\n\r\n  .zobai-vac-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-vac-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-vac-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-vac-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-vac-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-vac-rfq-grid {\r\n    display: grid;\r\n    grid-template-columns: 1fr 1fr;\r\n    gap: 10px;\r\n  }\r\n\r\n  .zobai-vac-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-vac-btn-row {\r\n    display: flex;\r\n    flex-wrap: wrap;\r\n    gap: 14px;\r\n  }\r\n\r\n  .zobai-vac-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-vac-btn:hover {\r\n    transform: translateY(-2px);\r\n    opacity: 0.92;\r\n  }\r\n\r\n  .zobai-vac-btn-primary {\r\n    background: #ffc400;\r\n    color: #18201f;\r\n  }\r\n\r\n  .zobai-vac-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-vac-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-vac-span-4,\r\n    .zobai-vac-span-5,\r\n    .zobai-vac-span-6,\r\n    .zobai-vac-span-7,\r\n    .zobai-vac-span-12 {\r\n      grid-column: span 12;\r\n    }\r\n\r\n    .zobai-vac-kpi,\r\n    .zobai-vac-link-grid {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .zobai-vac-rfq {\r\n      grid-template-columns: 1fr;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 640px) {\r\n    .zobai-vac-section {\r\n      padding: 58px 18px;\r\n    }\r\n\r\n    .zobai-vac-card,\r\n    .zobai-vac-hero-panel,\r\n    .zobai-vac-rfq,\r\n    .zobai-vac-case {\r\n      padding: 26px 20px;\r\n      border-radius: 24px;\r\n    }\r\n\r\n    .zobai-vac-flow-item {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .zobai-vac-case-top {\r\n      flex-direction: column;\r\n    }\r\n\r\n    .zobai-vac-case-data {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .zobai-vac-rfq-grid {\r\n      grid-template-columns: 1fr;\r\n    }\r\n  }\r\n<\/style>\r\n\r\n<div class=\"zobai-vac-page\">\r\n\r\n  <section class=\"zobai-vac-section\">\r\n    <div class=\"zobai-vac-hero-panel\">\r\n      <div class=\"zobai-vac-eyebrow\">Vacuum Protection Service<\/div>\r\n      <h2>Vacuum Service Safety Valves and Vacuum Relief Valves for Tanks, Vessels and Process Systems<\/h2>\r\n      <p>\r\n        Vacuum service safety valves, vacuum relief valves and vacuum breakers protect atmospheric storage tanks, low-pressure tanks, process vessels, columns, condensers, evaporators, steam systems, reactors, autoclaves, vacuum receivers, skids and jacketed vessels from vacuum collapse, shell buckling, gasket leakage and unsafe air ingress. Correct selection starts with allowable vacuum, design external pressure, inbreathing rate, pump-out rate, cooling rate, steam condensation, vacuum pump capacity, blocked vent risk, medium compatibility, seat tightness, connection size, weather protection, flame protection and required test documents.\r\n      <\/p>\r\n\r\n      <div class=\"zobai-vac-kpi\">\r\n        <div class=\"zobai-vac-kpi-item\">\r\n          <strong>Core Equipment<\/strong>\r\n          <span>Storage tanks, pressure vessels, condensers, evaporators, columns and vacuum skids<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-vac-kpi-item\">\r\n          <strong>Key Vacuum Cases<\/strong>\r\n          <span>Pump-out, cooling, steam condensation, blocked vent and vacuum pump overpull<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-vac-kpi-item\">\r\n          <strong>Engineering Focus<\/strong>\r\n          <span>Allowable vacuum, inbreathing capacity, external pressure and clean air entry<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-vac-kpi-item\">\r\n          <strong>RFQ Output<\/strong>\r\n          <span>Datasheet, vacuum setting, capacity, material, test report and document package<\/span>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section zobai-vac-section-soft\">\r\n    <div class=\"zobai-vac-eyebrow\">Vacuum Service Applications<\/div>\r\n    <h2 class=\"zobai-vac-title\">Where Vacuum Relief Valves and Vacuum Breakers Are Used<\/h2>\r\n    <p class=\"zobai-vac-lead\">\r\n      Vacuum protection is required when equipment can experience pressure below atmospheric pressure and the vessel, tank or piping is not designed for full vacuum. The right device may be a vacuum relief valve, pressure\/vacuum relief valve, vacuum breaker, tank breather valve, emergency vacuum vent or engineered air-inlet system.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-vac-grid\">\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Atmospheric and Low-Pressure Storage Tanks<\/h3>\r\n        <p>\r\n          Used on fixed-roof tanks, solvent tanks, fuel tanks, water treatment chemical tanks and nitrogen-blanketed storage tanks. Vacuum relief should cover pump-out, thermal cooling, vapor condensation, blocked vent and emergency inbreathing.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Process Vessels and Receivers<\/h3>\r\n        <p>\r\n          Used on receivers, separators, buffer vessels, knockout drums and low-pressure process vessels. Selection should review external pressure rating, steam-out, cooldown, draining, blocked gas inlet and vacuum pump connection.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Condensers and Vacuum Systems<\/h3>\r\n        <p>\r\n          Used on surface condensers, overhead condensers, vacuum receivers, ejector systems and liquid ring vacuum pump packages. Key checks include vapor collapse, rapid condensation, pump capacity and safe air admission.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Evaporators, Distillation Columns and Crystallizers<\/h3>\r\n        <p>\r\n          Used on vacuum distillation, evaporators, crystallizers, dryers and solvent recovery systems. Relief review should include vacuum operation, isolation error, condenser overcooling, air leakage and contamination risk.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Steam-Heated and Jacketed Equipment<\/h3>\r\n        <p>\r\n          Used on steam-jacketed vessels, autoclaves, sterilizers, hot water vessels and cleaning systems. Vacuum can form when steam condenses during cooldown or when hot water drains from a closed vessel.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Sanitary, Food and Pharmaceutical Vessels<\/h3>\r\n        <p>\r\n          Used on CIP tanks, SIP vessels, fermenters, bioreactors, mixing tanks and sanitary receivers. Vacuum protection must consider cleanability, sterile barrier, air filtration, sanitary connections and contamination control.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section\">\r\n    <div class=\"zobai-vac-eyebrow\">Vacuum Case Analysis<\/div>\r\n    <h2 class=\"zobai-vac-title\">Vacuum Valve Selection Starts With the Credible Vacuum Cause<\/h2>\r\n    <p class=\"zobai-vac-lead\">\r\n      Vacuum failure can happen faster than operators expect. A tank or vessel may collapse when liquid is pumped out, vapor condenses, steam collapses, a vent filter plugs, nitrogen supply fails, or a vacuum pump continues pulling against a blocked inlet path.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-vac-flow\">\r\n      <div class=\"zobai-vac-flow-item\">\r\n        <div class=\"zobai-vac-flow-num\">01<\/div>\r\n        <div>\r\n          <h3>Pump-Out or Liquid Draining<\/h3>\r\n          <p>\r\n            When liquid leaves a tank or vessel, air, nitrogen or filtered gas must enter at the same effective rate. Vacuum relief capacity should be based on maximum pump-out rate, drain rate and simultaneous thermal inbreathing where applicable.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-flow-item\">\r\n        <div class=\"zobai-vac-flow-num\">02<\/div>\r\n        <div>\r\n          <h3>Thermal Cooling and Vapor Contraction<\/h3>\r\n          <p>\r\n            Cooling of vapor space can reduce internal pressure. Outdoor tanks, solvent tanks, hot-filled vessels, reactors and low-pressure process equipment should be checked for thermal inbreathing during ambient temperature drop or process cooldown.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-flow-item\">\r\n        <div class=\"zobai-vac-flow-num\">03<\/div>\r\n        <div>\r\n          <h3>Steam Condensation or Vapor Collapse<\/h3>\r\n          <p>\r\n            Steam-out, SIP cycles, steam heating and hot water cleaning can create severe vacuum when steam condenses. This case can require rapid air admission because condensation may occur much faster than ordinary cooling.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-flow-item\">\r\n        <div class=\"zobai-vac-flow-num\">04<\/div>\r\n        <div>\r\n          <h3>Blocked Vent, Filter or Flame Arrester<\/h3>\r\n          <p>\r\n            Vent filters, flame arresters, screens, weather hoods, scrubbers and vapor recovery lines can plug with dust, ice, polymer, corrosion or condensate. A blocked vent can create vacuum even when the original design had enough open vent area.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-flow-item\">\r\n        <div class=\"zobai-vac-flow-num\">05<\/div>\r\n        <div>\r\n          <h3>Vacuum Pump or Ejector Overpull<\/h3>\r\n          <p>\r\n            Vacuum pumps, ejectors and condensers can pull a vessel below its allowable vacuum if control valves, vents or equalization lines fail. Selection should review maximum vacuum source capacity and the vessel external pressure rating.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-flow-item\">\r\n        <div class=\"zobai-vac-flow-num\">06<\/div>\r\n        <div>\r\n          <h3>Nitrogen Blanketing or Gas Supply Failure<\/h3>\r\n          <p>\r\n            Blanketed tanks rely on inert gas for inbreathing. If the regulator, supply line or filter is undersized or blocked, the tank may pull vacuum during pump-out or cooling. Vacuum relief should be coordinated with blanketing settings.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section zobai-vac-section-soft\">\r\n    <div class=\"zobai-vac-eyebrow\">Application Case Data<\/div>\r\n    <h2 class=\"zobai-vac-title\">Vacuum Relief Valve Application Cases with Typical RFQ Data<\/h2>\r\n    <p class=\"zobai-vac-lead\">\r\n      These cases show how vacuum relief requirements are commonly described before model selection. Final sizing must be confirmed by tank or vessel datasheet, allowable vacuum, inbreathing calculation, process conditions, applicable standard and engineering review.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-vac-grid\">\r\n      <div class=\"zobai-vac-case zobai-vac-span-6\">\r\n        <div class=\"zobai-vac-case-top\">\r\n          <h3>Case 1: Solvent Storage Tank Vacuum Relief Valve<\/h3>\r\n          <span class=\"zobai-vac-case-tag\">Pump-Out \/ Cooling<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-vac-case-data\">\r\n          <div><b>Protected equipment:<\/b> Aboveground fixed-roof solvent tank<\/div>\r\n          <div><b>Medium:<\/b> Solvent vapor, nitrogen and air<\/div>\r\n          <div><b>Tank type:<\/b> Atmospheric or low-pressure storage tank<\/div>\r\n          <div><b>Vacuum setting:<\/b> Above tank design vacuum limit<\/div>\r\n          <div><b>Relief cause:<\/b> Pump-out, thermal cooling or blanketing failure<\/div>\r\n          <div><b>Required data:<\/b> Pump-out rate, tank volume and thermal inbreathing basis<\/div>\r\n          <div><b>Device review:<\/b> Pressure\/vacuum relief valve or dedicated vacuum relief valve<\/div>\r\n          <div><b>Key review:<\/b> API 2000 basis, flame protection, VOC control and seat tightness<\/div>\r\n        <\/div>\r\n        <p>\r\n          Solvent tanks need enough inbreathing capacity to prevent roof or shell damage while limiting vapor loss and uncontrolled air ingress during normal operation.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-case zobai-vac-span-6\">\r\n        <div class=\"zobai-vac-case-top\">\r\n          <h3>Case 2: Steam-Cleaned Process Vessel Vacuum Breaker<\/h3>\r\n          <span class=\"zobai-vac-case-tag\">Steam Condensation<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-vac-case-data\">\r\n          <div><b>Protected equipment:<\/b> Stainless steel process vessel<\/div>\r\n          <div><b>Medium:<\/b> Steam, condensate, air and process vapor<\/div>\r\n          <div><b>Design basis:<\/b> External pressure or partial vacuum limit<\/div>\r\n          <div><b>Vacuum setting:<\/b> Below normal operating pressure but above vessel limit<\/div>\r\n          <div><b>Relief cause:<\/b> Steam collapse during cooldown or washdown<\/div>\r\n          <div><b>Required data:<\/b> Vessel volume, steam-out condition and cooldown rate<\/div>\r\n          <div><b>Device review:<\/b> Vacuum breaker with clean air inlet or filtered inlet<\/div>\r\n          <div><b>Key review:<\/b> Rapid condensation, sanitary air quality, drainability and cleanability<\/div>\r\n        <\/div>\r\n        <p>\r\n          Steam condensation can create vacuum quickly. Vacuum breaker capacity should be reviewed from credible condensation rate, not only from normal vessel breathing.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-case zobai-vac-span-6\">\r\n        <div class=\"zobai-vac-case-top\">\r\n          <h3>Case 3: Condenser Receiver Vacuum Relief Valve<\/h3>\r\n          <span class=\"zobai-vac-case-tag\">Vapor Collapse<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-vac-case-data\">\r\n          <div><b>Protected equipment:<\/b> Condenser receiver or vacuum receiver<\/div>\r\n          <div><b>Medium:<\/b> Solvent vapor, condensate and non-condensable gas<\/div>\r\n          <div><b>Normal condition:<\/b> Vacuum operation<\/div>\r\n          <div><b>Vacuum limit:<\/b> Vessel external pressure rating<\/div>\r\n          <div><b>Relief cause:<\/b> Over-condensation or vacuum pump overpull<\/div>\r\n          <div><b>Required data:<\/b> Condensation duty, vacuum pump capacity and vessel volume<\/div>\r\n          <div><b>Device review:<\/b> Vacuum relief valve or controlled vacuum breaker<\/div>\r\n          <div><b>Key review:<\/b> Air ingress impact, solvent emissions, condensate carryover and contamination<\/div>\r\n        <\/div>\r\n        <p>\r\n          Vacuum operating systems should protect against excessive vacuum without destroying process control. The selected valve must balance vessel protection and process contamination limits.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-case zobai-vac-span-6\">\r\n        <div class=\"zobai-vac-case-top\">\r\n          <h3>Case 4: Nitrogen-Blanketed Tank Vacuum Protection<\/h3>\r\n          <span class=\"zobai-vac-case-tag\">Blanketing Failure<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-vac-case-data\">\r\n          <div><b>Protected equipment:<\/b> Nitrogen-blanketed API intermediate tank<\/div>\r\n          <div><b>Medium:<\/b> Nitrogen, solvent vapor and filtered air backup<\/div>\r\n          <div><b>Operating band:<\/b> Low positive blanketing pressure<\/div>\r\n          <div><b>Vacuum setting:<\/b> Coordinated with blanketing regulator and tank rating<\/div>\r\n          <div><b>Relief cause:<\/b> Pump-out, nitrogen failure or blocked blanketing line<\/div>\r\n          <div><b>Required data:<\/b> Pump-out rate, nitrogen regulator capacity and tank design vacuum<\/div>\r\n          <div><b>Device review:<\/b> P\/V valve, emergency vacuum vent or filtered vacuum breaker<\/div>\r\n          <div><b>Key review:<\/b> Product oxidation, air filter capacity, VOC control and cleanability<\/div>\r\n        <\/div>\r\n        <p>\r\n          Vacuum protection should be coordinated with nitrogen blanketing. If the vacuum device opens too often, product quality and emissions can be affected.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-case zobai-vac-span-6\">\r\n        <div class=\"zobai-vac-case-top\">\r\n          <h3>Case 5: Fermenter or Bioreactor Vacuum Breaker<\/h3>\r\n          <span class=\"zobai-vac-case-tag\">Sterile Service<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-vac-case-data\">\r\n          <div><b>Protected equipment:<\/b> Fermenter, bioreactor or sterile receiver<\/div>\r\n          <div><b>Medium:<\/b> Sterile air, vapor space gas and condensate<\/div>\r\n          <div><b>Design basis:<\/b> Low-pressure vessel with vacuum limit<\/div>\r\n          <div><b>Vacuum setting:<\/b> Above vessel collapse limit<\/div>\r\n          <div><b>Relief cause:<\/b> Pump-out, SIP cooldown or blocked sterile vent filter<\/div>\r\n          <div><b>Required data:<\/b> Vessel volume, transfer rate and SIP cycle condition<\/div>\r\n          <div><b>Device review:<\/b> Sanitary vacuum breaker with sterile filter connection<\/div>\r\n          <div><b>Key review:<\/b> Sterility, cleanability, condensate drainage, CIP\/SIP temperature and filter pressure drop<\/div>\r\n        <\/div>\r\n        <p>\r\n          Sanitary vacuum protection must protect the vessel without compromising sterility. Filter blockage and SIP cooldown should be included in the sizing review.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-case zobai-vac-span-6\">\r\n        <div class=\"zobai-vac-case-top\">\r\n          <h3>Case 6: Vacuum Distillation Column Protection<\/h3>\r\n          <span class=\"zobai-vac-case-tag\">Process Vacuum<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-vac-case-data\">\r\n          <div><b>Protected equipment:<\/b> Vacuum distillation column or evaporator<\/div>\r\n          <div><b>Medium:<\/b> Solvent vapor, hydrocarbon vapor, condensate and non-condensables<\/div>\r\n          <div><b>Normal condition:<\/b> Controlled vacuum operation<\/div>\r\n          <div><b>Vacuum limit:<\/b> Column external pressure rating<\/div>\r\n          <div><b>Relief cause:<\/b> Ejector overpull, condenser overcooling or blocked equalization<\/div>\r\n          <div><b>Required data:<\/b> Column volume, vacuum source capacity and process contamination limit<\/div>\r\n          <div><b>Device review:<\/b> Engineered vacuum relief or controlled air\/nitrogen admission<\/div>\r\n          <div><b>Key review:<\/b> Process upset, air ingress, flammability, oxygen limit and condenser load<\/div>\r\n        <\/div>\r\n        <p>\r\n          Vacuum columns may require controlled inert gas admission rather than simple atmospheric air entry. The protection method should match flammability and process quality requirements.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section\">\r\n    <div class=\"zobai-vac-eyebrow\">Service Data Matrix<\/div>\r\n    <h2 class=\"zobai-vac-title\">Vacuum Relief Valve Data Matrix<\/h2>\r\n\r\n    <div class=\"zobai-vac-table-wrap\">\r\n      <table class=\"zobai-vac-table\">\r\n        <thead>\r\n          <tr>\r\n            <th>Vacuum Service<\/th>\r\n            <th>Typical Medium<\/th>\r\n            <th>Common Vacuum Cause<\/th>\r\n            <th>Required Engineering Check<\/th>\r\n            <th>Recommended Device Review<\/th>\r\n            <th>Risk if Missed<\/th>\r\n          <\/tr>\r\n        <\/thead>\r\n        <tbody>\r\n          <tr>\r\n            <td>Atmospheric storage tank<\/td>\r\n            <td>Air, nitrogen, solvent vapor, fuel vapor<\/td>\r\n            <td>Pump-out, thermal cooling, blocked vent<\/td>\r\n            <td>Tank design vacuum, pump-out rate, thermal inbreathing and flame protection<\/td>\r\n            <td>Pressure\/vacuum relief valve or vacuum relief valve<\/td>\r\n            <td>Tank roof collapse, shell buckling or uncontrolled vapor release<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Low-pressure process vessel<\/td>\r\n            <td>Air, nitrogen, steam, process vapor<\/td>\r\n            <td>Cooldown, draining, steam condensation, vacuum source overpull<\/td>\r\n            <td>External pressure rating, vessel volume, condensation rate and air admission route<\/td>\r\n            <td>Vacuum breaker or engineered vacuum relief valve<\/td>\r\n            <td>Vessel collapse, gasket leakage or nozzle deformation<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Condenser \/ vacuum receiver<\/td>\r\n            <td>Solvent vapor, condensate, non-condensable gas<\/td>\r\n            <td>Vapor collapse, vacuum pump overpull, blocked equalization<\/td>\r\n            <td>Vacuum source capacity, condensation duty, receiver rating and contamination limit<\/td>\r\n            <td>Controlled vacuum breaker or vacuum relief valve<\/td>\r\n            <td>External pressure failure or process upset from uncontrolled air ingress<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Blanketed chemical tank<\/td>\r\n            <td>Nitrogen, solvent vapor, filtered air backup<\/td>\r\n            <td>Nitrogen failure, pump-out, blocked blanketing line<\/td>\r\n            <td>Blanketing set point, nitrogen capacity, vacuum setting and product sensitivity<\/td>\r\n            <td>P\/V relief valve, filtered vacuum breaker or emergency vacuum vent<\/td>\r\n            <td>Tank damage, product oxidation or emission control failure<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Sanitary vessel \/ bioreactor<\/td>\r\n            <td>Sterile air, clean steam, CO\u2082, vapor space gas<\/td>\r\n            <td>SIP cooldown, pump-out, blocked sterile vent filter<\/td>\r\n            <td>Filter pressure drop, cleanability, SIP temperature and vessel vacuum rating<\/td>\r\n            <td>Sanitary vacuum breaker with sterile filter connection<\/td>\r\n            <td>Vessel damage or contamination of sterile boundary<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Vacuum column \/ evaporator<\/td>\r\n            <td>Solvent vapor, hydrocarbon vapor, condensate, inert gas<\/td>\r\n            <td>Ejector overpull, condenser overcooling, blocked equalization<\/td>\r\n            <td>External pressure rating, flammability, oxygen limit and vacuum source capacity<\/td>\r\n            <td>Controlled air or nitrogen admission with vacuum relief protection<\/td>\r\n            <td>Column collapse, flammable mixture formation or process contamination<\/td>\r\n          <\/tr>\r\n        <\/tbody>\r\n      <\/table>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section zobai-vac-section-soft\">\r\n    <div class=\"zobai-vac-eyebrow\">Selection Framework<\/div>\r\n    <h2 class=\"zobai-vac-title\">How to Specify a Vacuum Service Valve Correctly<\/h2>\r\n\r\n    <div class=\"zobai-vac-grid\">\r\n      <div class=\"zobai-vac-card zobai-vac-span-6\">\r\n        <h3>1. Confirm allowable vacuum and external pressure rating<\/h3>\r\n        <p>\r\n          Start with tank design vacuum, vessel external pressure rating, MAWP, design temperature, nozzle rating and applicable standard. A vacuum relief valve should open before the equipment reaches its collapse or buckling limit.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-6\">\r\n        <h3>2. Define the governing vacuum scenario<\/h3>\r\n        <p>\r\n          Review pump-out, draining, thermal cooling, steam condensation, vapor collapse, vacuum pump overpull, blocked vent, filter fouling, blanketing failure and process isolation. The largest credible inbreathing demand controls capacity.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-6\">\r\n        <h3>3. Calculate required inbreathing capacity<\/h3>\r\n        <p>\r\n          Capacity should be based on maximum liquid outflow, gas contraction, condensation rate or vacuum source capacity. For tanks, normal and emergency venting should be evaluated separately where applicable.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-6\">\r\n        <h3>4. Decide air, nitrogen or filtered gas admission<\/h3>\r\n        <p>\r\n          Air may be acceptable for water or non-sensitive service. Nitrogen or filtered air may be required for solvent, flammable, oxygen-sensitive, sanitary, pharmaceutical or API intermediate service.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-6\">\r\n        <h3>5. Review materials, sealing and contamination risk<\/h3>\r\n        <p>\r\n          Body, trim, seat, diaphragm, pallet, gasket and screen material should match vapor corrosion, cleaning chemicals, temperature and hygiene requirements. Seat tightness matters when vapor loss, air ingress or nitrogen consumption must be controlled.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-6\">\r\n        <h3>6. Confirm installation and maintenance access<\/h3>\r\n        <p>\r\n          Vacuum valves should be installed where they can breathe freely, drain condensate, resist weather, avoid plugging and be inspected. Screens, filters, flame arresters and weather hoods must be included in pressure drop and maintenance planning.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section\">\r\n    <div class=\"zobai-vac-eyebrow\">Installation & Inbreathing Path<\/div>\r\n    <h2 class=\"zobai-vac-title\">Vacuum Relief Devices Must Be Reviewed With Filters, Flame Arresters, Vent Lines and Air Admission Paths<\/h2>\r\n\r\n    <div class=\"zobai-vac-grid\">\r\n      <div class=\"zobai-vac-card zobai-vac-span-7\">\r\n        <h3>Why the inlet path changes vacuum protection performance<\/h3>\r\n        <p>\r\n          Vacuum protection depends on the full inbreathing path, not only valve size. A correctly sized vacuum valve can fail to protect equipment if a sterile filter is blocked, a flame arrester is fouled, a bird screen freezes, a weather hood is undersized, or a nitrogen supply line cannot provide enough gas during pump-out.\r\n        <\/p>\r\n        <p>\r\n          Installation should review device orientation, air inlet location, flame arrester pressure drop, sterile filter capacity, weather protection, condensate drainage, ice formation, corrosion, inspection access, isolation valve policy and whether the admitted gas is safe for the product and process.\r\n        <\/p>\r\n        <div class=\"zobai-vac-chip-row\">\r\n          <span class=\"zobai-vac-chip\">Vacuum Relief Valve<\/span>\r\n          <span class=\"zobai-vac-chip\">Vacuum Breaker<\/span>\r\n          <span class=\"zobai-vac-chip\">Tank Inbreathing<\/span>\r\n          <span class=\"zobai-vac-chip\">External Pressure<\/span>\r\n          <span class=\"zobai-vac-chip\">Steam Condensation<\/span>\r\n          <span class=\"zobai-vac-chip\">Filtered Air Inlet<\/span>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-5\">\r\n        <h3>Field installation checks<\/h3>\r\n        <ul class=\"zobai-vac-list\">\r\n          <li>Confirm tank design vacuum or vessel external pressure rating.<\/li>\r\n          <li>Install the vacuum device where the equipment can breathe freely.<\/li>\r\n          <li>Check pressure drop across flame arresters, sterile filters, screens and weather hoods.<\/li>\r\n          <li>Prevent condensate, ice, dust, polymer and corrosion from blocking the inlet path.<\/li>\r\n          <li>Coordinate vacuum setting with nitrogen blanketing and pressure relief settings.<\/li>\r\n          <li>Use filtered air or nitrogen where contamination, oxidation or flammability is a concern.<\/li>\r\n          <li>Provide safe access for inspection, cleaning, calibration and valve replacement.<\/li>\r\n        <\/ul>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section zobai-vac-section-soft\">\r\n    <div class=\"zobai-vac-eyebrow\">Standards & Documentation<\/div>\r\n    <h2 class=\"zobai-vac-title\">Standards and Documents to Confirm Before Ordering<\/h2>\r\n\r\n    <div class=\"zobai-vac-grid\">\r\n      <div class=\"zobai-vac-card zobai-vac-span-6\">\r\n        <h3>Common vacuum service references<\/h3>\r\n        <p>\r\n          Vacuum service specifications may reference API, ASME, ISO, EN, GB, NFPA, local pressure equipment rules, sanitary standards, owner specifications and tank farm requirements. The correct reference depends on whether the protected equipment is an atmospheric tank, low-pressure tank, pressure vessel, sanitary vessel or process skid.\r\n        <\/p>\r\n        <ul class=\"zobai-vac-list\">\r\n          <li><a href=\"\/standards\/api-2000\/\">API 2000<\/a> for venting atmospheric and low-pressure storage tanks, including pressure and vacuum venting review.<\/li>\r\n          <li><a href=\"\/standards\/asme-section-viii\/\">ASME BPVC Section VIII<\/a> where process vessels, receivers or separators are designed as pressure vessels with external pressure limits.<\/li>\r\n          <li><a href=\"\/standards\/api-520\/\">API 520<\/a> for pressure-relieving device sizing and selection reference where required by the project.<\/li>\r\n          <li><a href=\"\/standards\/api-521\/\">API 521<\/a> for system-level pressure relief and depressuring review in process facilities.<\/li>\r\n          <li><a href=\"\/standards\/api-650\/\">API 650<\/a> where welded atmospheric storage tanks are part of the tank system scope.<\/li>\r\n          <li><a href=\"\/standards\/api-620\/\">API 620<\/a> where large welded low-pressure storage tanks are specified.<\/li>\r\n          <li>Owner specifications for nitrogen blanketing, sterile vent filters, flame arresters, vapor recovery, VOC control and sanitary vacuum breakers.<\/li>\r\n        <\/ul>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-6\">\r\n        <h3>Typical vacuum valve document package<\/h3>\r\n        <p>\r\n          Documentation should be agreed before manufacturing, especially for tank farms, API intermediate tanks, sanitary vessels, sterile service, solvent systems, vapor recovery systems and vacuum process packages.\r\n        <\/p>\r\n        <ul class=\"zobai-vac-list\">\r\n          <li>Technical datasheet with device type, size, connection, vacuum setting and pressure setting if applicable.<\/li>\r\n          <li>Inbreathing capacity confirmation or venting calculation basis.<\/li>\r\n          <li>Material certificate for body, pallet, trim, seat, spring and fasteners when specified.<\/li>\r\n          <li>Vacuum setting test report and leakage test report when required.<\/li>\r\n          <li>Flame arrester or filter pressure drop data when part of the assembly.<\/li>\r\n          <li>Sanitary finish, cleaning, passivation, CIP\/SIP or sterile service record when specified.<\/li>\r\n          <li>General arrangement drawing, dimension, weight, nozzle orientation and maintenance clearance.<\/li>\r\n          <li>Nameplate, tag number, inspection record, packing list and project marking confirmation.<\/li>\r\n        <\/ul>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section\">\r\n    <div class=\"zobai-vac-eyebrow\">RFQ Checklist<\/div>\r\n    <h2 class=\"zobai-vac-title\">Vacuum Service Valve RFQ Data Checklist<\/h2>\r\n\r\n    <div class=\"zobai-vac-table-wrap\">\r\n      <table class=\"zobai-vac-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 tank, vessel or process system design basis.<\/td>\r\n            <td>Storage tank, process vessel, condenser receiver, bioreactor, vacuum column<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Design vacuum \/ external pressure rating<\/td>\r\n            <td>Defines the limit the device must protect.<\/td>\r\n            <td>-5 mbar, -25 mbar, -0.2 barg, full vacuum design, external pressure rating<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Vacuum setting<\/td>\r\n            <td>Defines when the valve opens to admit air or gas.<\/td>\r\n            <td>-3 mbar, -10 mbar, -50 mbar, project-defined vacuum set point<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Vacuum relief scenario<\/td>\r\n            <td>Determines required inbreathing capacity.<\/td>\r\n            <td>Pump-out, thermal cooling, steam condensation, blocked vent, vacuum pump overpull<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Required inbreathing capacity<\/td>\r\n            <td>Confirms whether the valve can protect against collapse.<\/td>\r\n            <td>Nm\u00b3\/h air, SCFH air, maximum pump-out rate, condensation rate, vacuum pump capacity<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Admitted gas<\/td>\r\n            <td>Affects contamination, oxidation, flammability and product quality.<\/td>\r\n            <td>Atmospheric air, filtered air, sterile air, nitrogen, inert gas<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Medium inside equipment<\/td>\r\n            <td>Affects material, flame protection, emissions and cleaning.<\/td>\r\n            <td>Solvent vapor, nitrogen, steam, acid vapor, API intermediate, food product vapor<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Operating pressure range<\/td>\r\n            <td>Confirms setting coordination with pressure relief and blanketing.<\/td>\r\n            <td>Atmospheric, nitrogen blanket 10 mbar, normal vacuum operation, cyclic vacuum<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Filter \/ flame arrester \/ screen<\/td>\r\n            <td>Pressure drop can reduce inbreathing capacity.<\/td>\r\n            <td>Flame arrester, sterile filter, HEPA filter, bird screen, weather hood<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Material and seat requirement<\/td>\r\n            <td>Prevents corrosion, sticking, leakage or contamination.<\/td>\r\n            <td>Carbon steel, aluminum, 304SS, 316L, PTFE seat, EPDM, FKM, sanitary finish<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Connection and mounting<\/td>\r\n            <td>Ensures fit with tank nozzle, vessel nozzle or skid piping.<\/td>\r\n            <td>RF flange, clamp, threaded, tank roof nozzle, sanitary connection, PN16, Class 150<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Required documents<\/td>\r\n            <td>Avoids inspection, installation and commissioning delays.<\/td>\r\n            <td>Datasheet, drawing, MTC, setting test, capacity confirmation, leakage test, tag list<\/td>\r\n          <\/tr>\r\n        <\/tbody>\r\n      <\/table>\r\n    <\/div>\r\n\r\n    <p class=\"zobai-vac-note\">\r\n      Final selection must be confirmed by tank or vessel datasheet, allowable vacuum, venting basis, process conditions, inlet device pressure drop, applicable standard and engineering review.\r\n    <\/p>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section zobai-vac-section-soft\">\r\n    <div class=\"zobai-vac-eyebrow\">Selection Errors<\/div>\r\n    <h2 class=\"zobai-vac-title\">Common Vacuum Relief Valve Selection Mistakes<\/h2>\r\n\r\n    <div class=\"zobai-vac-grid\">\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Assuming a tank can tolerate full vacuum<\/h3>\r\n        <p>\r\n          Many atmospheric and low-pressure tanks cannot withstand significant vacuum. The design vacuum or external pressure rating must be confirmed before selecting the device setting.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Using pump-out rate only<\/h3>\r\n        <p>\r\n          Pump-out may not be the largest vacuum case. Steam condensation, rapid cooling or vacuum pump overpull can require higher inbreathing capacity.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Ignoring filter or flame arrester pressure drop<\/h3>\r\n        <p>\r\n          Filters, flame arresters and screens can reduce actual air admission. Their pressure drop and fouling risk should be included in sizing and maintenance planning.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Opening to air when nitrogen is required<\/h3>\r\n        <p>\r\n          Some products are oxygen-sensitive, flammable or contamination-sensitive. Filtered air or nitrogen admission should be selected according to process risk.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Setting the vacuum valve too low<\/h3>\r\n        <p>\r\n          A vacuum setting below the tank or vessel limit may allow damage before the valve opens. Setting should protect the weakest allowable vacuum boundary.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-card zobai-vac-span-4\">\r\n        <h3>Neglecting maintenance and weather protection<\/h3>\r\n        <p>\r\n          Dust, insects, ice, condensate, corrosion and product residue can block vacuum devices. Inspection access and maintenance intervals should be planned from the start.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section\">\r\n    <div class=\"zobai-vac-eyebrow\">Related Engineering Resources<\/div>\r\n    <h2 class=\"zobai-vac-title\">Continue Your Vacuum Protection Review<\/h2>\r\n    <p class=\"zobai-vac-lead\">\r\n      These related pages help move from vacuum service requirements to tank venting, pressure\/vacuum relief valve selection, storage tank protection, sanitary service review and complete RFQ preparation.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-vac-link-grid\">\r\n      <a class=\"zobai-vac-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 relief devices by pressure, vacuum, medium, capacity, material and installation condition.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-vac-link-card\" href=\"\/engineering\/tank-venting-api-2000\/\">\r\n        <strong>Tank Venting and API 2000<\/strong>\r\n        <span>For storage tank pressure relief, vacuum relief, normal breathing and emergency venting review.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-vac-link-card\" href=\"\/products\/pressure-vacuum-relief-valves\/\">\r\n        <strong>Pressure Vacuum Relief Valves<\/strong>\r\n        <span>For storage tanks, solvent tanks, blanketed tanks and low-pressure vapor spaces.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-vac-link-card\" href=\"\/products\/vacuum-relief-valves\/\">\r\n        <strong>Vacuum Relief Valves<\/strong>\r\n        <span>For tanks, vessels, condensers, steam-cleaned equipment and vacuum receivers.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-vac-link-card\" href=\"\/equipment\/storage-tanks\/\">\r\n        <strong>Storage Tank Safety Valves<\/strong>\r\n        <span>For atmospheric tanks, low-pressure tanks, emergency vents and tank breathing systems.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-vac-link-card\" href=\"\/equipment\/pressure-vessels\/\">\r\n        <strong>Pressure Vessel Safety Valves<\/strong>\r\n        <span>For vessels that require both overpressure and external pressure protection review.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-vac-link-card\" href=\"\/industries\/pharmaceutical\/\">\r\n        <strong>Pharmaceutical Safety Valves<\/strong>\r\n        <span>For sterile vessels, CIP\/SIP systems, filtered air admission and clean documentation.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-vac-link-card\" href=\"\/industries\/food-beverage\/\">\r\n        <strong>Food and Beverage Safety Valves<\/strong>\r\n        <span>For sanitary tanks, hot-fill systems, vacuum breakers and cleanable vent devices.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-vac-link-card\" href=\"\/applications\/corrosive-service\/\">\r\n        <strong>Corrosive Service<\/strong>\r\n        <span>For acid vapor, solvent vapor, chlorine service, scrubber connections and special materials.<\/span>\r\n      <\/a>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section zobai-vac-section-soft\">\r\n    <div class=\"zobai-vac-eyebrow\">FAQ<\/div>\r\n    <h2 class=\"zobai-vac-title\">Vacuum Service Safety Valve FAQ<\/h2>\r\n\r\n    <div class=\"zobai-vac-accordion\" data-zobai-vac-accordion>\r\n      <div class=\"zobai-vac-acc-item is-open\">\r\n        <button class=\"zobai-vac-acc-btn\" type=\"button\">What is the difference between a vacuum relief valve and a vacuum breaker? <span>+<\/span><\/button>\r\n        <div class=\"zobai-vac-acc-body\">\r\n          A vacuum relief valve opens at a defined vacuum setting to admit air or gas and protect equipment from vacuum damage. A vacuum breaker is often used as a simpler air-admission device, especially for steam, condensate, sanitary or vessel cooldown service. The final term depends on equipment design and project specification.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-acc-item\">\r\n        <button class=\"zobai-vac-acc-btn\" type=\"button\">What causes vacuum in a storage tank? <span>+<\/span><\/button>\r\n        <div class=\"zobai-vac-acc-body\">\r\n          Common causes include liquid pump-out, ambient cooling, vapor condensation, nitrogen blanketing failure, blocked vent lines, clogged flame arresters and thermal contraction of the vapor space.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-acc-item\">\r\n        <button class=\"zobai-vac-acc-btn\" type=\"button\">Can a vacuum valve be selected by tank nozzle size only? <span>+<\/span><\/button>\r\n        <div class=\"zobai-vac-acc-body\">\r\n          No. Nozzle size only confirms mechanical fit. The device must match allowable vacuum, vacuum setting, required inbreathing capacity, admitted gas, material, filter or flame arrester pressure drop, installation condition and documentation requirements.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-acc-item\">\r\n        <button class=\"zobai-vac-acc-btn\" type=\"button\">When should filtered air or nitrogen be used instead of open air? <span>+<\/span><\/button>\r\n        <div class=\"zobai-vac-acc-body\">\r\n          Filtered air or nitrogen should be reviewed when the product is oxygen-sensitive, flammable, sterile, pharmaceutical-grade, food-grade, moisture-sensitive or contamination-sensitive. Nitrogen admission may also be required when oxygen ingress must be limited.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-acc-item\">\r\n        <button class=\"zobai-vac-acc-btn\" type=\"button\">What data is required for a vacuum relief valve quotation? <span>+<\/span><\/button>\r\n        <div class=\"zobai-vac-acc-body\">\r\n          Provide protected equipment, design vacuum or external pressure rating, vacuum setting, vacuum relief scenario, required inbreathing capacity, admitted gas, internal medium, operating pressure range, filter or flame arrester data, material requirement, connection and required documents.\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-vac-section\">\r\n    <div class=\"zobai-vac-rfq\">\r\n      <div>\r\n        <div class=\"zobai-vac-eyebrow\">Engineering RFQ Support<\/div>\r\n        <h2>Prepare a Complete Vacuum Service Valve Datasheet Before Quotation<\/h2>\r\n        <p>\r\n          Send the tank or vessel datasheet, design vacuum, external pressure rating, vacuum setting, vacuum relief scenario, required inbreathing capacity, admitted gas, internal medium, operating pressure range, filter or flame arrester data, 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-vac-btn-row\">\r\n          <a class=\"zobai-vac-btn zobai-vac-btn-primary\" href=\"\/contact\/\">Request Engineering Quote<\/a>\r\n          <a class=\"zobai-vac-btn zobai-vac-btn-secondary\" href=\"\/ask-an-engineer\/\">Ask an Engineer<\/a>\r\n          <a class=\"zobai-vac-btn zobai-vac-btn-secondary\" href=\"\/catalog-pdf\/\">Download Catalog PDF<\/a>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-vac-rfq-box\">\r\n        <h3>Minimum RFQ data<\/h3>\r\n        <div class=\"zobai-vac-rfq-grid\">\r\n          <div class=\"zobai-vac-rfq-item\">Protected Equipment<\/div>\r\n          <div class=\"zobai-vac-rfq-item\">Design Vacuum<\/div>\r\n          <div class=\"zobai-vac-rfq-item\">Vacuum Setting<\/div>\r\n          <div class=\"zobai-vac-rfq-item\">Vacuum Scenario<\/div>\r\n          <div class=\"zobai-vac-rfq-item\">Inbreathing Capacity<\/div>\r\n          <div class=\"zobai-vac-rfq-item\">Admitted Gas<\/div>\r\n          <div class=\"zobai-vac-rfq-item\">Internal Medium<\/div>\r\n          <div class=\"zobai-vac-rfq-item\">Operating Range<\/div>\r\n          <div class=\"zobai-vac-rfq-item\">Filter \/ Arrester<\/div>\r\n          <div class=\"zobai-vac-rfq-item\">Material<\/div>\r\n          <div class=\"zobai-vac-rfq-item\">Connection<\/div>\r\n          <div class=\"zobai-vac-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-vac-accordion]');\r\n    accordions.forEach(function (accordion) {\r\n      var items = accordion.querySelectorAll('.zobai-vac-acc-item');\r\n\r\n      items.forEach(function (item) {\r\n        var button = item.querySelector('.zobai-vac-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 difference between a vacuum relief valve and a vacuum breaker?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"A vacuum relief valve opens at a defined vacuum setting to admit air or gas and protect equipment from vacuum damage. 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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-b0715f 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=\"b0715f\" 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 di 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4976529f e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"4976529f\" 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-3c5cf2c2 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"3c5cf2c2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-212a39b0 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"212a39b0\" 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-238b1b18 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"238b1b18\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-742dbbe3 cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"742dbbe3\" 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-143427ee e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"143427ee\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-159b88d1 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"159b88d1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2f046589 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"2f046589\" 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-5fcdd9c3 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5fcdd9c3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-301a126a cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"301a126a\" 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\/fr\/applications\/vacuum-service\/\">\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-529e54d6 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"529e54d6\" 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 di 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4f9aa55a e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"4f9aa55a\" 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-5c4a615e e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5c4a615e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5adfc93 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5adfc93\" 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-378f442c e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"378f442c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5533340e cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"5533340e\" 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-3f96818e e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"3f96818e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-36a0d65a e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"36a0d65a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-71b267be cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"71b267be\" 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-e4bf0b0 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"e4bf0b0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-50805cac cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"50805cac\" 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\/fr\/applications\/vacuum-service\/\">\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-69a6f910 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"69a6f910\" 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 di 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e5319ac e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"e5319ac\" 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-72bc4e88 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"72bc4e88\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-495cd6d7 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"495cd6d7\" 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-7e07fdc3 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"7e07fdc3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6a1d1cad cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"6a1d1cad\" 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-424628d7 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"424628d7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-23e706b6 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"23e706b6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-92733e cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"92733e\" 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-7eb10ebe e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"7eb10ebe\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-919eb81 cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"919eb81\" 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\/fr\/applications\/vacuum-service\/\">\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-27b705b8 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"27b705b8\" 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 di 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7e9e89f6 e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"7e9e89f6\" 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-2f4ee8cf e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"2f4ee8cf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-331bc7e5 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"331bc7e5\" 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-7103ffff e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"7103ffff\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-497c078 cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"497c078\" 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-505e5213 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"505e5213\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-588b4c e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"588b4c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-36144894 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"36144894\" 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-671ff950 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"671ff950\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1b833c3a cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"1b833c3a\" 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\/fr\/applications\/vacuum-service\/\">\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-12123bec cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"12123bec\" 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=\"Indietro\">\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=\"Avanti\">\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 Vacuum Service Safety Valves and Vacuum Relief Valves for Tanks, Vessels and Process Systems CONTACT SALES Vacuum Protection Service Vacuum Service Safety Valves and Vacuum Relief Valves for Tanks, Vessels and Process Systems Vacuum service safety valves, vacuum relief valves and vacuum breakers protect atmospheric storage tanks, low-pressure tanks, process vessels, columns, condensers, evaporators,&#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-53190","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/zobai.com\/fr\/wp-json\/wp\/v2\/pages\/53190","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zobai.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/zobai.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/zobai.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zobai.com\/fr\/wp-json\/wp\/v2\/comments?post=53190"}],"version-history":[{"count":4,"href":"https:\/\/zobai.com\/fr\/wp-json\/wp\/v2\/pages\/53190\/revisions"}],"predecessor-version":[{"id":53195,"href":"https:\/\/zobai.com\/fr\/wp-json\/wp\/v2\/pages\/53190\/revisions\/53195"}],"up":[{"embeddable":true,"href":"https:\/\/zobai.com\/fr\/wp-json\/wp\/v2\/pages\/52780"}],"wp:attachment":[{"href":"https:\/\/zobai.com\/fr\/wp-json\/wp\/v2\/media?parent=53190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}