{"id":53196,"date":"2026-05-15T09:19:01","date_gmt":"2026-05-15T09:19:01","guid":{"rendered":"https:\/\/zobai.com\/?page_id=53196"},"modified":"2026-05-15T09:21:23","modified_gmt":"2026-05-15T09:21:23","slug":"corrosive-service","status":"publish","type":"page","link":"https:\/\/zobai.com\/it\/applications\/corrosive-service\/","title":{"rendered":"Servizio Corrosivo"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"53196\" class=\"elementor elementor-53196\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-67dba06 e-con-full e-flex cmsmasters-bg-hide-none cmsmasters-bg-hide-none cmsmasters-block-default e-con e-parent\" data-id=\"67dba06\" 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-462d7625 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"462d7625\" 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-73d1c8f4 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=\"73d1c8f4\" 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-201406ca elementor-widget__width-initial cmsmasters-block-default cmsmasters-sticky-default elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"201406ca\" 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\">Corrosive Service Safety Valves for Acid, Alkali, Sour Gas, Chloride and Chemical Media<\/h1>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-692472c7 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"692472c7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-12ae2103 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=\"12ae2103\" 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\/it\/?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-6d2576ad e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"6d2576ad\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-27079e7 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"27079e7\" 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-28f9b3f0 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=\"28f9b3f0\" 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-70a1278b e-con-full e-flex cmsmasters-block-default e-con e-parent\" data-id=\"70a1278b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6981f8e3 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-html\" data-id=\"6981f8e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>\r\n  .zobai-corr-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-corr-page * {\r\n    box-sizing: border-box;\r\n  }\r\n\r\n  .zobai-corr-section {\r\n    max-width: 100%;\r\n    margin: 0 auto;\r\n    padding: 88px 80px;\r\n  }\r\n\r\n  .zobai-corr-section-soft {\r\n    background: #f8faf9;\r\n  }\r\n\r\n  .zobai-corr-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-corr-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-corr-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-corr-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-corr-grid {\r\n    display: grid;\r\n    grid-template-columns: repeat(12, 1fr);\r\n    gap: 28px;\r\n  }\r\n\r\n  .zobai-corr-span-4 { grid-column: span 4; }\r\n  .zobai-corr-span-5 { grid-column: span 5; }\r\n  .zobai-corr-span-6 { grid-column: span 6; }\r\n  .zobai-corr-span-7 { grid-column: span 7; }\r\n  .zobai-corr-span-12 { grid-column: span 12; }\r\n\r\n  .zobai-corr-card,\r\n  .zobai-corr-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-corr-card h2,\r\n  .zobai-corr-card h3,\r\n  .zobai-corr-case h3 {\r\n    margin: 0 0 14px;\r\n    color: var(--z-ink);\r\n  }\r\n\r\n  .zobai-corr-card h3,\r\n  .zobai-corr-case h3 {\r\n    font-size: 24px;\r\n    line-height: 1.25;\r\n  }\r\n\r\n  .zobai-corr-card p,\r\n  .zobai-corr-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-corr-card p:last-child,\r\n  .zobai-corr-case p:last-child {\r\n    margin-bottom: 0;\r\n  }\r\n\r\n  .zobai-corr-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-corr-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-corr-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-corr-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-corr-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-corr-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-corr-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-corr-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-corr-flow {\r\n    display: grid;\r\n    gap: 16px;\r\n    margin-top: 28px;\r\n  }\r\n\r\n  .zobai-corr-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-corr-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-corr-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-corr-flow-item p {\r\n    margin: 0;\r\n    color: #4d5863;\r\n    line-height: 1.68;\r\n  }\r\n\r\n  .zobai-corr-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-corr-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-corr-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-corr-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-corr-table tr:nth-child(even) td {\r\n    background: #fbfcfc;\r\n  }\r\n\r\n  .zobai-corr-table tr:last-child td {\r\n    border-bottom: 0;\r\n  }\r\n\r\n  .zobai-corr-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-corr-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-corr-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-corr-case {\r\n    border-radius: 24px;\r\n    padding: 28px;\r\n  }\r\n\r\n  .zobai-corr-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-corr-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-corr-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-corr-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-corr-case-data b {\r\n    color: var(--z-ink);\r\n  }\r\n\r\n  .zobai-corr-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-corr-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-corr-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-corr-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-corr-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-corr-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-corr-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-corr-accordion {\r\n    display: grid;\r\n    gap: 14px;\r\n  }\r\n\r\n  .zobai-corr-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-corr-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-corr-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-corr-acc-item.is-open .zobai-corr-acc-btn span {\r\n    transform: rotate(45deg);\r\n  }\r\n\r\n  .zobai-corr-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-corr-acc-item.is-open .zobai-corr-acc-body {\r\n    display: block;\r\n  }\r\n\r\n  .zobai-corr-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-corr-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-corr-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-corr-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-corr-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-corr-rfq-grid {\r\n    display: grid;\r\n    grid-template-columns: 1fr 1fr;\r\n    gap: 10px;\r\n  }\r\n\r\n  .zobai-corr-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-corr-btn-row {\r\n  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.zobai-corr-span-7,\r\n    .zobai-corr-span-12 {\r\n      grid-column: span 12;\r\n    }\r\n\r\n    .zobai-corr-kpi,\r\n    .zobai-corr-link-grid {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .zobai-corr-rfq {\r\n      grid-template-columns: 1fr;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 640px) {\r\n    .zobai-corr-section {\r\n      padding: 58px 18px;\r\n    }\r\n\r\n    .zobai-corr-card,\r\n    .zobai-corr-hero-panel,\r\n    .zobai-corr-rfq,\r\n    .zobai-corr-case {\r\n      padding: 26px 20px;\r\n      border-radius: 24px;\r\n    }\r\n\r\n    .zobai-corr-flow-item {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .zobai-corr-case-top {\r\n      flex-direction: column;\r\n    }\r\n\r\n    .zobai-corr-case-data {\r\n      grid-template-columns: 1fr;\r\n    }\r\n\r\n    .zobai-corr-rfq-grid {\r\n      grid-template-columns: 1fr;\r\n    }\r\n  }\r\n<\/style>\r\n\r\n<div class=\"zobai-corr-page\">\r\n\r\n  <section class=\"zobai-corr-section\">\r\n    <div class=\"zobai-corr-hero-panel\">\r\n      <div class=\"zobai-corr-eyebrow\">Corrosive Service PSV Selection<\/div>\r\n      <h2>Corrosive Service Safety Valves for Acid, Alkali, Sour Gas, Chloride and Chemical Media<\/h2>\r\n      <p>\r\n        Corrosive service safety valves protect chemical reactors, acid storage tanks, caustic dosing skids, sour gas separators, amine units, scrubbers, chlorine systems, solvent recovery packages, wastewater chemical lines, pressure vessels, heat exchangers and process pipelines from overpressure while resisting chemical attack. Correct selection starts with medium name, concentration, temperature, phase, wet or dry condition, pH, chloride content, H\u2082S partial pressure, corrosion mechanism, material compatibility, soft seat limits, bellows isolation, rupture disc requirement, discharge destination, leakage control and required material certificates.\r\n      <\/p>\r\n\r\n      <div class=\"zobai-corr-kpi\">\r\n        <div class=\"zobai-corr-kpi-item\">\r\n          <strong>Core Media<\/strong>\r\n          <span>Acids, alkalis, sour gas, chlorides, solvents, ammonia, chlorine and acid gas<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-corr-kpi-item\">\r\n          <strong>Key Review<\/strong>\r\n          <span>Concentration, temperature, wet\/dry condition, pH, H\u2082S, chloride and corrosion rate<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-corr-kpi-item\">\r\n          <strong>Valve Options<\/strong>\r\n          <span>Alloy PSV, PTFE-lined valve, bellows PSV, rupture disc plus PSV<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-corr-kpi-item\">\r\n          <strong>RFQ Output<\/strong>\r\n          <span>Datasheet, material selection, sizing basis, MTC, PMI and test reports<\/span>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section zobai-corr-section-soft\">\r\n    <div class=\"zobai-corr-eyebrow\">Corrosive Applications<\/div>\r\n    <h2 class=\"zobai-corr-title\">Where Corrosive Service Safety Valves Are Used<\/h2>\r\n    <p class=\"zobai-corr-lead\">\r\n      Corrosive service is not defined by the chemical name alone. The same chemical can require different valve materials when concentration, temperature, water content, oxygen, chlorides, H\u2082S, velocity, deposits or cleaning chemicals change. Safety valve selection must protect pressure equipment and also survive the chemical environment.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-corr-grid\">\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Acid Storage and Transfer Systems<\/h3>\r\n        <p>\r\n          Used on hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, acetic acid and mixed-acid tanks or pipelines. Selection should review concentration, temperature, vapor corrosion, mist carryover, lining, alloy selection and scrubber discharge.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Caustic and Alkali Systems<\/h3>\r\n        <p>\r\n          Used on sodium hydroxide, potassium hydroxide, alkaline cleaning systems, dosing skids and chemical reactors. Relief review should include concentration, temperature, crystallization, caustic stress corrosion risk and seat material compatibility.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Sour Gas and H\u2082S-Containing Service<\/h3>\r\n        <p>\r\n          Used on sour gas separators, amine units, gas sweetening systems, sulfur recovery, produced water and oilfield packages. Material selection should review H\u2082S, CO\u2082, chlorides, pH, hardness, SSC resistance and sour service document requirements.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Chloride and Seawater Service<\/h3>\r\n        <p>\r\n          Used on seawater cooling, desalination, offshore skids, chloride-rich process water and brine systems. Stainless steel may not be enough when chloride temperature and concentration are high; duplex, super duplex, titanium or nickel alloys may be reviewed.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Chlorine, Ammonia and Toxic Gas Systems<\/h3>\r\n        <p>\r\n          Used on chlorine storage, ammonia refrigeration, acid gas, toxic vapor and gas treatment systems. Valve selection should review dry\/wet condition, leakage tightness, gasket compatibility, emergency venting and scrubber or flare discharge.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Solvent, Polymer and Fouling Service<\/h3>\r\n        <p>\r\n          Used on solvent recovery, resin, polymerization, monomer, organic acid and sticky process systems. Corrosion, fouling, polymer buildup and seat sticking may require rupture disc isolation or special trim selection.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section\">\r\n    <div class=\"zobai-corr-eyebrow\">Corrosion Mechanism Review<\/div>\r\n    <h2 class=\"zobai-corr-title\">Corrosive PSV Selection Starts With Chemistry, Phase and Failure Mechanism<\/h2>\r\n    <p class=\"zobai-corr-lead\">\r\n      A corrosive service valve should not be selected by pressure and size only. The governing question is how the medium attacks the valve body, trim, spring, seat, gasket, bellows and outlet piping during normal operation, simmer, relief and shutdown.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-corr-flow\">\r\n      <div class=\"zobai-corr-flow-item\">\r\n        <div class=\"zobai-corr-flow-num\">01<\/div>\r\n        <div>\r\n          <h3>General Corrosion and Corrosion Allowance<\/h3>\r\n          <p>\r\n            Acids, alkalis and salt solutions can reduce wall thickness over time. Body material, corrosion allowance, lining, coating, maintenance interval and process concentration should be reviewed before valve selection.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-flow-item\">\r\n        <div class=\"zobai-corr-flow-num\">02<\/div>\r\n        <div>\r\n          <h3>Pitting and Crevice Corrosion<\/h3>\r\n          <p>\r\n            Chlorides, stagnant liquid, deposits and gasket crevices can attack stainless steel locally. This can be more dangerous than uniform corrosion because leakage or cracking may begin at small hidden areas.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-flow-item\">\r\n        <div class=\"zobai-corr-flow-num\">03<\/div>\r\n        <div>\r\n          <h3>Stress Corrosion Cracking<\/h3>\r\n          <p>\r\n            Chloride SCC, caustic cracking and ammonia-related cracking can occur under tensile stress at certain temperatures and concentrations. Material, hardness, heat treatment and bolting should be reviewed for the actual service.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-flow-item\">\r\n        <div class=\"zobai-corr-flow-num\">04<\/div>\r\n        <div>\r\n          <h3>Sour Service Cracking and Hydrogen Damage<\/h3>\r\n          <p>\r\n            H\u2082S-containing systems can create sulfide stress cracking or hydrogen-related damage in susceptible materials. Sour service valves should be specified with suitable materials, hardness control and required certificates.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-flow-item\">\r\n        <div class=\"zobai-corr-flow-num\">05<\/div>\r\n        <div>\r\n          <h3>Wet vs Dry Corrosive Gas<\/h3>\r\n          <p>\r\n            Dry chlorine, wet chlorine, dry HCl gas, wet HCl vapor, dry CO\u2082 and wet CO\u2082 can behave very differently. Water content and condensation risk can decide whether a standard material is acceptable or a special alloy or lined design is required.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-flow-item\">\r\n        <div class=\"zobai-corr-flow-num\">06<\/div>\r\n        <div>\r\n          <h3>Fouling, Crystallization and Polymerization<\/h3>\r\n          <p>\r\n            Some corrosive services also crystallize, polymerize or leave deposits. Seat sticking, blocked nozzle, pilot plugging and bellows damage should be reviewed, especially for monomers, caustic, salt solutions and polymer systems.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section zobai-corr-section-soft\">\r\n    <div class=\"zobai-corr-eyebrow\">Application Case Data<\/div>\r\n    <h2 class=\"zobai-corr-title\">Corrosive Service Safety Valve Application Cases with Typical RFQ Data<\/h2>\r\n    <p class=\"zobai-corr-lead\">\r\n      These cases show how corrosive service PSV requirements are commonly described before model selection. Final material selection and sizing must be confirmed by process chemistry, concentration, temperature, pressure data, applicable standard, verified sizing basis and corrosion review.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-corr-grid\">\r\n      <div class=\"zobai-corr-case zobai-corr-span-6\">\r\n        <div class=\"zobai-corr-case-top\">\r\n          <h3>Case 1: Hydrochloric Acid Storage Tank Vent and Relief Protection<\/h3>\r\n          <span class=\"zobai-corr-case-tag\">Acid Vapor<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-corr-case-data\">\r\n          <div><b>Protected equipment:<\/b> HCl storage tank or day tank<\/div>\r\n          <div><b>Medium:<\/b> Hydrochloric acid vapor, air and acid mist<\/div>\r\n          <div><b>Service condition:<\/b> Corrosive vapor with possible condensation<\/div>\r\n          <div><b>Relief cause:<\/b> Filling, thermal breathing, blocked vent or scrubber restriction<\/div>\r\n          <div><b>Device review:<\/b> Corrosion-resistant tank vent or P\/V relief valve<\/div>\r\n          <div><b>Material focus:<\/b> PTFE, lined construction, FRP\/PVC-compatible parts or suitable alloy<\/div>\r\n          <div><b>Discharge:<\/b> Scrubber or safe acid vent line<\/div>\r\n          <div><b>Key review:<\/b> Acid concentration, vapor corrosion, mist carryover, scrubber back pressure and drainage<\/div>\r\n        <\/div>\r\n        <p>\r\n          Acid tank relief devices must be selected for vapor and mist behavior, not just the liquid name. Condensation, scrubber pressure drop and vent line corrosion can control the final design.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-case zobai-corr-span-6\">\r\n        <div class=\"zobai-corr-case-top\">\r\n          <h3>Case 2: Sour Gas Separator PSV<\/h3>\r\n          <span class=\"zobai-corr-case-tag\">H\u2082S \/ Sour Service<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-corr-case-data\">\r\n          <div><b>Protected equipment:<\/b> Sour gas separator or knockout drum<\/div>\r\n          <div><b>Medium:<\/b> Natural gas, H\u2082S, CO\u2082, water vapor and condensate<\/div>\r\n          <div><b>Set pressure:<\/b> Vessel MAWP-based value<\/div>\r\n          <div><b>Relief cause:<\/b> Blocked outlet, fire case or upstream control failure<\/div>\r\n          <div><b>Device review:<\/b> Sour service PSV with qualified materials<\/div>\r\n          <div><b>Material focus:<\/b> Hardness-controlled trim, suitable bolting and sour service documentation<\/div>\r\n          <div><b>Discharge:<\/b> Flare header or acid gas relief system<\/div>\r\n          <div><b>Key review:<\/b> H\u2082S partial pressure, pH, chlorides, temperature, liquid carryover and back pressure<\/div>\r\n        <\/div>\r\n        <p>\r\n          Sour gas service requires material and hardness review in addition to normal sizing. Outlet back pressure and corrosive wet gas should be included in the PSV configuration.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-case zobai-corr-span-6\">\r\n        <div class=\"zobai-corr-case-top\">\r\n          <h3>Case 3: Caustic Dosing Skid Relief Valve<\/h3>\r\n          <span class=\"zobai-corr-case-tag\">Alkali Liquid<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-corr-case-data\">\r\n          <div><b>Protected equipment:<\/b> Caustic dosing pump discharge line<\/div>\r\n          <div><b>Medium:<\/b> Sodium hydroxide solution<\/div>\r\n          <div><b>Set pressure:<\/b> Below skid piping design limit<\/div>\r\n          <div><b>Relief cause:<\/b> Metering pump deadhead or blocked injection point<\/div>\r\n          <div><b>Device review:<\/b> Liquid relief valve with caustic-compatible wetted parts<\/div>\r\n          <div><b>Material focus:<\/b> Compatible stainless steel, alloy or lined wetted parts based on concentration and temperature<\/div>\r\n          <div><b>Discharge:<\/b> Return to chemical tank or safe containment<\/div>\r\n          <div><b>Key review:<\/b> Concentration, crystallization, pump pulsation, return pressure and seat leakage<\/div>\r\n        <\/div>\r\n        <p>\r\n          Caustic service can combine corrosion, crystallization and pump pulsation. The valve should be selected from actual concentration, temperature and pump curve.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-case zobai-corr-span-6\">\r\n        <div class=\"zobai-corr-case-top\">\r\n          <h3>Case 4: Seawater Heat Exchanger Safety Valve<\/h3>\r\n          <span class=\"zobai-corr-case-tag\">Chloride Service<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-corr-case-data\">\r\n          <div><b>Protected equipment:<\/b> Seawater side of heat exchanger or cooler<\/div>\r\n          <div><b>Medium:<\/b> Seawater, brine or chloride-rich cooling water<\/div>\r\n          <div><b>Set pressure:<\/b> Exchanger or piping design pressure basis<\/div>\r\n          <div><b>Relief cause:<\/b> Tube rupture, pump deadhead or thermal expansion<\/div>\r\n          <div><b>Device review:<\/b> Corrosion-resistant water service PSV or thermal relief valve<\/div>\r\n          <div><b>Material focus:<\/b> Duplex, super duplex, titanium or suitable alloy where required<\/div>\r\n          <div><b>Discharge:<\/b> Safe drain, seawater return or containment<\/div>\r\n          <div><b>Key review:<\/b> Chloride level, temperature, stagnant condition, biofouling and crevice corrosion risk<\/div>\r\n        <\/div>\r\n        <p>\r\n          Chloride service can damage common stainless steel, especially at higher temperature or stagnant conditions. Material choice should reflect actual chloride and temperature data.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-case zobai-corr-span-6\">\r\n        <div class=\"zobai-corr-case-top\">\r\n          <h3>Case 5: Chlorine or Toxic Gas Relief to Scrubber<\/h3>\r\n          <span class=\"zobai-corr-case-tag\">Toxic Gas<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-corr-case-data\">\r\n          <div><b>Protected equipment:<\/b> Chlorine storage, gas header or treatment vessel<\/div>\r\n          <div><b>Medium:<\/b> Chlorine, inert gas, possible moisture and toxic vapor<\/div>\r\n          <div><b>Set pressure:<\/b> Equipment protection value<\/div>\r\n          <div><b>Relief cause:<\/b> Thermal expansion, blocked outlet or pressure control failure<\/div>\r\n          <div><b>Device review:<\/b> Tight shutoff PSV, rupture disc plus PSV or special alloy solution<\/div>\r\n          <div><b>Material focus:<\/b> Dry\/wet chlorine compatibility, gasket and seat compatibility<\/div>\r\n          <div><b>Discharge:<\/b> Caustic scrubber or closed treatment system<\/div>\r\n          <div><b>Key review:<\/b> Moisture content, toxicity, leakage class, scrubber back pressure and emergency handling<\/div>\r\n        <\/div>\r\n        <p>\r\n          Chlorine and toxic gas applications require leakage and discharge review. Wet and dry conditions can lead to completely different material choices.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-case zobai-corr-span-6\">\r\n        <div class=\"zobai-corr-case-top\">\r\n          <h3>Case 6: Polymerizing Solvent Reactor PSV with Rupture Disc<\/h3>\r\n          <span class=\"zobai-corr-case-tag\">Fouling \/ Sticky Service<\/span>\r\n        <\/div>\r\n        <div class=\"zobai-corr-case-data\">\r\n          <div><b>Protected equipment:<\/b> Solvent reactor, monomer vessel or resin kettle<\/div>\r\n          <div><b>Medium:<\/b> Solvent vapor, monomer, inhibitor, reaction gas and possible two-phase mixture<\/div>\r\n          <div><b>Set pressure:<\/b> Reactor MAWP-based value<\/div>\r\n          <div><b>Relief cause:<\/b> Exothermic reaction, blocked vent or utility failure<\/div>\r\n          <div><b>Device review:<\/b> Rupture disc plus PSV, or corrosion\/fouling-resistant PSV<\/div>\r\n          <div><b>Material focus:<\/b> Compatible alloy, PTFE parts, anti-fouling arrangement and monitored disc cavity<\/div>\r\n          <div><b>Discharge:<\/b> Scrubber, condenser, flare or quench system<\/div>\r\n          <div><b>Key review:<\/b> Polymer buildup, disc leakage monitoring, two-phase relief, toxicity and cleaning access<\/div>\r\n        <\/div>\r\n        <p>\r\n          Fouling and polymerizing service can make direct PSV exposure unreliable. A rupture disc may protect the valve, but the combination must be sized and monitored correctly.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section\">\r\n    <div class=\"zobai-corr-eyebrow\">Material Selection Matrix<\/div>\r\n    <h2 class=\"zobai-corr-title\">Corrosive Service Material and Valve Configuration Matrix<\/h2>\r\n\r\n    <div class=\"zobai-corr-table-wrap\">\r\n      <table class=\"zobai-corr-table\">\r\n        <thead>\r\n          <tr>\r\n            <th>Corrosive Service<\/th>\r\n            <th>Typical Medium<\/th>\r\n            <th>Common Risk<\/th>\r\n            <th>Required Engineering Check<\/th>\r\n            <th>Recommended Valve Review<\/th>\r\n            <th>Risk if Missed<\/th>\r\n          <\/tr>\r\n        <\/thead>\r\n        <tbody>\r\n          <tr>\r\n            <td>Acid service<\/td>\r\n            <td>HCl, H\u2082SO\u2084, HNO\u2083, H\u2083PO\u2084, organic acids, acid vapor<\/td>\r\n            <td>General corrosion, vapor corrosion, mist carryover and lining attack<\/td>\r\n            <td>Concentration, temperature, water content, vapor phase, scrubber pressure and material compatibility<\/td>\r\n            <td>Alloy PSV, lined valve, PTFE seat or rupture disc isolation depending on chemistry<\/td>\r\n            <td>Rapid corrosion, leakage, blocked discharge or unsafe acid release<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Alkali \/ caustic service<\/td>\r\n            <td>NaOH, KOH, alkaline cleaning fluid, caustic dosing liquid<\/td>\r\n            <td>Caustic cracking, crystallization, seat sticking and chemical leakage<\/td>\r\n            <td>Concentration, temperature, pump curve, pulsation, crystallization point and seat material<\/td>\r\n            <td>Compatible liquid relief valve or lined wetted construction<\/td>\r\n            <td>Seat leakage, blocked valve, pump overpressure or chemical exposure<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Sour gas service<\/td>\r\n            <td>H\u2082S, CO\u2082, natural gas, condensate, sour water<\/td>\r\n            <td>SSC, hydrogen damage, corrosion and toxic gas leakage<\/td>\r\n            <td>H\u2082S partial pressure, pH, chlorides, temperature, hardness, wet\/dry condition and sour service documents<\/td>\r\n            <td>Sour service PSV, bellows PSV or pilot solution where suitable<\/td>\r\n            <td>Cracking failure, toxic release or rejected project documentation<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Chloride \/ seawater service<\/td>\r\n            <td>Seawater, brine, cooling water, desalination stream, chloride process water<\/td>\r\n            <td>Pitting, crevice corrosion and chloride SCC<\/td>\r\n            <td>Chloride concentration, temperature, oxygen, deposits, stagnant zones and material PREN requirement<\/td>\r\n            <td>Duplex, super duplex, titanium, nickel alloy or suitable trim selection<\/td>\r\n            <td>Hidden pitting, flange leakage, seat damage or premature valve failure<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Toxic corrosive gas<\/td>\r\n            <td>Chlorine, ammonia, acid gas, SO\u2082, HCl gas, process toxic vapor<\/td>\r\n            <td>Leakage, wet corrosion, gasket attack and unsafe discharge<\/td>\r\n            <td>Dry\/wet condition, toxicity, leakage class, emergency discharge, scrubber back pressure and gasket compatibility<\/td>\r\n            <td>Tight shutoff PSV, rupture disc plus PSV or special alloy valve<\/td>\r\n            <td>Toxic exposure, corrosion failure or environmental release<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Fouling corrosive service<\/td>\r\n            <td>Monomer, polymer, resin, crystallizing salt, sticky solvent, dirty acid<\/td>\r\n            <td>Seat sticking, pilot plugging, bellows fouling and blocked nozzle<\/td>\r\n            <td>Fouling tendency, cleaning interval, rupture disc need, discharge plugging and maintenance access<\/td>\r\n            <td>Rupture disc plus PSV, full-nozzle PSV or special anti-fouling arrangement<\/td>\r\n            <td>Valve fails to open, leaks continuously or cannot reseat after relief<\/td>\r\n          <\/tr>\r\n        <\/tbody>\r\n      <\/table>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section zobai-corr-section-soft\">\r\n    <div class=\"zobai-corr-eyebrow\">Selection Framework<\/div>\r\n    <h2 class=\"zobai-corr-title\">How to Specify a Corrosive Service Safety Valve Correctly<\/h2>\r\n\r\n    <div class=\"zobai-corr-grid\">\r\n      <div class=\"zobai-corr-card zobai-corr-span-6\">\r\n        <h3>1. Define the real chemical environment<\/h3>\r\n        <p>\r\n          Provide chemical name, concentration, impurities, water content, pH, chlorides, H\u2082S, CO\u2082, oxygen, solids, inhibitor, operating temperature and relieving temperature. Material compatibility cannot be confirmed from the medium name alone.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-6\">\r\n        <h3>2. Confirm phase and wet\/dry condition<\/h3>\r\n        <p>\r\n          Gas, vapor, liquid, mist, flashing liquid and two-phase flow can attack the valve differently. Dry corrosive gas may become much more aggressive if water condenses in the valve, outlet line or discharge header.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-6\">\r\n        <h3>3. Match body, trim, spring and soft parts to corrosion risk<\/h3>\r\n        <p>\r\n          Review body, bonnet, nozzle, disc, guide, spring, bellows, gasket, seat, bolting and fasteners. In corrosive service, a standard body with unsuitable trim or gasket can still fail early.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-6\">\r\n        <h3>4. Decide whether bellows isolation is required<\/h3>\r\n        <p>\r\n          Bellows can isolate spring and bonnet areas from corrosive process fluid or variable back pressure. Bellows material, venting, fatigue, corrosion and failure indication should be reviewed before final selection.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-6\">\r\n        <h3>5. Review rupture disc plus PSV for severe service<\/h3>\r\n        <p>\r\n          A rupture disc can protect the PSV from corrosive, sticky, toxic or polymerizing media. The combination should include interspace monitoring, burst pressure review, capacity factor and maintenance plan.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-6\">\r\n        <h3>6. Confirm discharge treatment and documentation<\/h3>\r\n        <p>\r\n          Corrosive and toxic relief usually discharges to scrubber, flare, closed vent, quench tank or safe containment. Required documents may include MTC, PMI, hardness test, sour service certificate, coating record and special cleaning report.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section\">\r\n    <div class=\"zobai-corr-eyebrow\">Installation & Discharge<\/div>\r\n    <h2 class=\"zobai-corr-title\">Corrosive Service PSVs Must Be Reviewed With Drainage, Scrubbers, Closed Vents and Maintenance Access<\/h2>\r\n\r\n    <div class=\"zobai-corr-grid\">\r\n      <div class=\"zobai-corr-card zobai-corr-span-7\">\r\n        <h3>Why installation changes corrosion performance<\/h3>\r\n        <p>\r\n          Corrosive service failures often start in stagnant pockets, crevices, threaded drains, outlet elbows, bellows spaces, gasket faces, dead legs, low points and unflushed vent lines. A valve that is compatible with flowing process fluid can still fail if condensate, acid mist, chloride deposits or polymer remains trapped after shutdown.\r\n        <\/p>\r\n        <p>\r\n          Installation should review inlet pressure loss, vertical mounting, low-point drainage, outlet slope, scrubber pressure drop, closed vent back pressure, bellows vent routing, flush connection, rupture disc monitoring, maintenance isolation, safe access, spill containment and whether relief discharge can corrode downstream piping.\r\n        <\/p>\r\n        <div class=\"zobai-corr-chip-row\">\r\n          <span class=\"zobai-corr-chip\">Acid Service<\/span>\r\n          <span class=\"zobai-corr-chip\">Sour Service<\/span>\r\n          <span class=\"zobai-corr-chip\">Chloride SCC<\/span>\r\n          <span class=\"zobai-corr-chip\">Bellows Isolation<\/span>\r\n          <span class=\"zobai-corr-chip\">Rupture Disc + PSV<\/span>\r\n          <span class=\"zobai-corr-chip\">Scrubber Discharge<\/span>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-5\">\r\n        <h3>Field installation checks<\/h3>\r\n        <ul class=\"zobai-corr-list\">\r\n          <li>Confirm medium concentration, temperature, wet\/dry condition and phase before installation.<\/li>\r\n          <li>Keep inlet pressure loss within the project design limit.<\/li>\r\n          <li>Avoid dead legs, liquid pockets and stagnant corrosive condensate in inlet or outlet piping.<\/li>\r\n          <li>Route toxic, acid, sour or chlorine discharge to approved scrubber, flare or closed vent systems.<\/li>\r\n          <li>Support outlet piping without loading the valve body or bellows assembly.<\/li>\r\n          <li>Provide flushing, drainage, inspection and safe removal access where corrosive residue is expected.<\/li>\r\n          <li>Verify material marking, tag number, certificates and special cleaning before commissioning.<\/li>\r\n        <\/ul>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section zobai-corr-section-soft\">\r\n    <div class=\"zobai-corr-eyebrow\">Standards & Documentation<\/div>\r\n    <h2 class=\"zobai-corr-title\">Standards and Documents to Confirm Before Ordering<\/h2>\r\n\r\n    <div class=\"zobai-corr-grid\">\r\n      <div class=\"zobai-corr-card zobai-corr-span-6\">\r\n        <h3>Common corrosive service references<\/h3>\r\n        <p>\r\n          Corrosive service safety valve specifications may reference API, ASME, ISO, NACE, EN, GB, local pressure equipment rules, owner material standards and plant corrosion control specifications. The applicable documents should be confirmed before quotation.\r\n        <\/p>\r\n        <ul class=\"zobai-corr-list\">\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 pressure-relieving and depressuring system review, including discharge to flare, scrubber or closed systems.<\/li>\r\n          <li><a href=\"\/standards\/api-526\/\">API 526<\/a> when flanged steel pressure relief valve dimensions and pressure classes are specified.<\/li>\r\n          <li><a href=\"\/standards\/api-527\/\">API 527<\/a> when seat tightness testing is required by specification.<\/li>\r\n          <li><a href=\"\/standards\/asme-section-viii\/\">ASME BPVC Section VIII<\/a> where protected vessels, receivers, reactors or separators are pressure vessels.<\/li>\r\n          <li><a href=\"\/standards\/asme-b31-3\/\">ASME B31.3<\/a> where connected chemical, corrosive or process piping is specified under process piping rules.<\/li>\r\n          <li><a href=\"\/standards\/nace-mr0175-iso-15156\/\">NACE MR0175 \/ ISO 15156<\/a> where sour service and H\u2082S-containing oil and gas environments are specified.<\/li>\r\n          <li><a href=\"\/standards\/nace-mr0103\/\">NACE MR0103<\/a> where refinery sour service material requirements are specified by the project.<\/li>\r\n        <\/ul>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-6\">\r\n        <h3>Typical corrosive service document package<\/h3>\r\n        <p>\r\n          Documentation should be agreed before manufacturing, especially for sour gas, acid gas, chlorine, seawater, chemical reactors, toxic service, special alloy valves and rupture disc plus PSV assemblies.\r\n        <\/p>\r\n        <ul class=\"zobai-corr-list\">\r\n          <li>Technical datasheet with tag number, model, size, orifice, set pressure and connection.<\/li>\r\n          <li>Sizing calculation or certified relieving capacity confirmation.<\/li>\r\n          <li>Material certificate for body, bonnet, nozzle, disc, guide, spring, bellows, bolting and fasteners.<\/li>\r\n          <li>PMI report, ferrite report, hardness test or sour service certificate when specified.<\/li>\r\n          <li>Set pressure calibration certificate, pressure test report and seat tightness test report.<\/li>\r\n          <li>Lining, coating, passivation, pickling, special cleaning or oxygen-free cleaning record when specified.<\/li>\r\n          <li>Rupture disc datasheet, burst certificate and interspace monitoring arrangement when used.<\/li>\r\n          <li>General arrangement drawing with weight, orientation, discharge direction and maintenance clearance.<\/li>\r\n        <\/ul>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section\">\r\n    <div class=\"zobai-corr-eyebrow\">RFQ Checklist<\/div>\r\n    <h2 class=\"zobai-corr-title\">Corrosive Service Safety Valve RFQ Data Checklist<\/h2>\r\n\r\n    <div class=\"zobai-corr-table-wrap\">\r\n      <table class=\"zobai-corr-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 code basis, MAWP and relief scenario.<\/td>\r\n            <td>Reactor, separator, acid tank, caustic skid, scrubber, pipeline, heat exchanger<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Medium composition<\/td>\r\n            <td>Material compatibility depends on complete chemistry, not just the main chemical name.<\/td>\r\n            <td>HCl 32%, NaOH 50%, sour gas with H\u2082S, seawater, wet chlorine, solvent vapor<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Concentration and impurities<\/td>\r\n            <td>Corrosion behavior changes sharply with concentration and contaminants.<\/td>\r\n            <td>Chloride ppm, H\u2082S partial pressure, CO\u2082, water content, oxygen, solids, inhibitor<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Wet or dry condition<\/td>\r\n            <td>Many gases become far more corrosive when moisture or condensation is present.<\/td>\r\n            <td>Dry chlorine, wet HCl vapor, wet sour gas, dry ammonia, condensing acid vapor<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Set pressure and MAWP<\/td>\r\n            <td>Defines valve opening pressure and protected pressure boundary.<\/td>\r\n            <td>6 barg, 16 barg, 45 barg, Class 300 system, vessel MAWP value<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Relief scenario<\/td>\r\n            <td>Determines required capacity and phase behavior.<\/td>\r\n            <td>Blocked outlet, fire case, pump deadhead, reaction gas, tube rupture, thermal expansion<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Required capacity<\/td>\r\n            <td>Confirms whether the valve can protect the system.<\/td>\r\n            <td>kg\/h, Nm\u00b3\/h, SCFM, L\/min, GPM, pump curve, vapor generation rate<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Relieving temperature<\/td>\r\n            <td>Affects corrosion rate, material strength and soft part selection.<\/td>\r\n            <td>Ambient, 80\u00b0C, 120\u00b0C, 220\u00b0C, 350\u00b0C, low-temperature sour gas<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Discharge destination<\/td>\r\n            <td>Controls back pressure, toxicity management and downstream corrosion.<\/td>\r\n            <td>Atmosphere, scrubber, flare, closed vent, quench tank, return tank, closed drain<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Material requirement<\/td>\r\n            <td>Prevents corrosion, cracking, leakage and documentation rejection.<\/td>\r\n            <td>316L, Duplex, Super Duplex, Alloy 20, Hastelloy, Monel, Titanium, PTFE-lined, sour service<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Valve configuration<\/td>\r\n            <td>Determines reliability in corrosive, toxic, fouling or back pressure service.<\/td>\r\n            <td>Conventional PSV, bellows PSV, pilot valve, rupture disc plus PSV, lined valve<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td>Required documents<\/td>\r\n            <td>Avoids inspection, FAT, shipment and commissioning delays.<\/td>\r\n            <td>Datasheet, drawing, MTC, PMI, hardness report, sour service certificate, calibration report<\/td>\r\n          <\/tr>\r\n        <\/tbody>\r\n      <\/table>\r\n    <\/div>\r\n\r\n    <p class=\"zobai-corr-note\">\r\n      Final selection must be confirmed by process chemistry, pressure data, relieving condition, corrosion review, applicable standard, verified sizing calculation, manufacturer material capability and engineering review.\r\n    <\/p>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section zobai-corr-section-soft\">\r\n    <div class=\"zobai-corr-eyebrow\">Selection Errors<\/div>\r\n    <h2 class=\"zobai-corr-title\">Common Corrosive Service Safety Valve Selection Mistakes<\/h2>\r\n\r\n    <div class=\"zobai-corr-grid\">\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Buying by chemical name only<\/h3>\r\n        <p>\r\n          \u201cAcid service\u201d or \u201ccaustic service\u201d is not enough. Concentration, temperature, water content, contaminants and phase decide the real corrosion risk.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Ignoring wet and dry condition<\/h3>\r\n        <p>\r\n          Dry gas and wet gas may need different materials. Condensation in the valve or outlet piping can turn a mild service into severe corrosion.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Using stainless steel without chloride review<\/h3>\r\n        <p>\r\n          Chlorides can cause pitting, crevice corrosion and stress corrosion cracking. 316 stainless steel is not automatically suitable for hot chloride or seawater service.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Forgetting spring and bonnet exposure<\/h3>\r\n        <p>\r\n          Corrosive media can attack spring chambers, guides and bonnet areas. Bellows isolation or special construction may be needed to protect non-wetted parts.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Ignoring fouling and crystallization<\/h3>\r\n        <p>\r\n          Polymer, salt crystals, caustic deposits and sticky liquids can prevent opening or reseating. Rupture disc isolation or cleaning access should be reviewed.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-card zobai-corr-span-4\">\r\n        <h3>Missing material documents<\/h3>\r\n        <p>\r\n          Corrosive and sour service projects often require MTC, PMI, hardness, ferrite or sour service certificates. Missing documents can delay inspection or reject the valve.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section\">\r\n    <div class=\"zobai-corr-eyebrow\">Related Engineering Resources<\/div>\r\n    <h2 class=\"zobai-corr-title\">Continue Your Corrosive Service PSV Selection Review<\/h2>\r\n    <p class=\"zobai-corr-lead\">\r\n      These related pages help move from corrosive medium review to detailed safety valve selection, sizing, back pressure review, sour service documentation and equipment-specific protection.\r\n    <\/p>\r\n\r\n    <div class=\"zobai-corr-link-grid\">\r\n      <a class=\"zobai-corr-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-corr-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-corr-link-card\" href=\"\/products\/bellows-safety-valves\/\">\r\n        <strong>Bellows Balanced Safety Valves<\/strong>\r\n        <span>For corrosive media isolation, variable back pressure, flare headers and toxic discharge systems.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-corr-link-card\" href=\"\/products\/pilot-operated-safety-valves\/\">\r\n        <strong>Pilot Operated Safety Valves<\/strong>\r\n        <span>For clean gas, tight shutoff and selected high-pressure corrosive gas applications.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-corr-link-card\" href=\"\/applications\/high-back-pressure\/\">\r\n        <strong>High Back Pressure Service<\/strong>\r\n        <span>For corrosive PSVs discharging to scrubbers, flares, closed vents and return lines.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-corr-link-card\" href=\"\/medium\/sour-gas\/\">\r\n        <strong>Sour Gas Safety Valves<\/strong>\r\n        <span>For H\u2082S-containing gas, amine systems, separators, flare discharge and sour service documents.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-corr-link-card\" href=\"\/medium\/chlorine\/\">\r\n        <strong>Chlorine Safety Valves<\/strong>\r\n        <span>For dry and wet chlorine systems, toxic gas leakage control and scrubber discharge review.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-corr-link-card\" href=\"\/equipment\/reactors\/\">\r\n        <strong>Reactor Safety Valves<\/strong>\r\n        <span>For corrosive reactions, exothermic relief, two-phase flow, toxic vapor and rupture disc combinations.<\/span>\r\n      <\/a>\r\n\r\n      <a class=\"zobai-corr-link-card\" href=\"\/industries\/chemical-processing\/\">\r\n        <strong>Chemical Processing Safety Valves<\/strong>\r\n        <span>For acids, alkalis, solvents, process reactors, dosing skids and chemical relief systems.<\/span>\r\n      <\/a>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section zobai-corr-section-soft\">\r\n    <div class=\"zobai-corr-eyebrow\">FAQ<\/div>\r\n    <h2 class=\"zobai-corr-title\">Corrosive Service Safety Valve FAQ<\/h2>\r\n\r\n    <div class=\"zobai-corr-accordion\" data-zobai-corr-accordion>\r\n      <div class=\"zobai-corr-acc-item is-open\">\r\n        <button class=\"zobai-corr-acc-btn\" type=\"button\">What information is most important for selecting a corrosive service safety valve? <span>+<\/span><\/button>\r\n        <div class=\"zobai-corr-acc-body\">\r\n          The most important information is complete medium chemistry, concentration, temperature, wet or dry condition, pH, chloride content, H\u2082S or CO\u2082 content, phase, relief scenario, required capacity, discharge route and required material certificates.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-acc-item\">\r\n        <button class=\"zobai-corr-acc-btn\" type=\"button\">Is 316 stainless steel suitable for all corrosive service? <span>+<\/span><\/button>\r\n        <div class=\"zobai-corr-acc-body\">\r\n          No. 316 stainless steel may be unsuitable for hot chloride, strong acid, wet chlorine, sour service, high-temperature caustic or other aggressive media. Material should be selected from actual concentration, temperature and corrosion mechanism.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-acc-item\">\r\n        <button class=\"zobai-corr-acc-btn\" type=\"button\">When should a bellows safety valve be used in corrosive service? <span>+<\/span><\/button>\r\n        <div class=\"zobai-corr-acc-body\">\r\n          A bellows safety valve should be reviewed when corrosive media must be isolated from the spring and bonnet area, or when outlet back pressure is significant. Bellows material, fatigue, venting and corrosion resistance should also be checked.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-acc-item\">\r\n        <button class=\"zobai-corr-acc-btn\" type=\"button\">When is a rupture disc plus PSV useful? <span>+<\/span><\/button>\r\n        <div class=\"zobai-corr-acc-body\">\r\n          A rupture disc plus PSV is useful when the process fluid is highly corrosive, toxic, sticky, polymerizing, crystallizing or likely to foul the valve internals. The combination requires interspace monitoring and capacity review.\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-acc-item\">\r\n        <button class=\"zobai-corr-acc-btn\" type=\"button\">What documents are commonly required for corrosive service PSVs? <span>+<\/span><\/button>\r\n        <div class=\"zobai-corr-acc-body\">\r\n          Common documents include datasheet, sizing report, material certificates, PMI report, hardness test, sour service certificate, set pressure calibration report, pressure test report, seat tightness test and coating or lining records when specified.\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"zobai-corr-section\">\r\n    <div class=\"zobai-corr-rfq\">\r\n      <div>\r\n        <div class=\"zobai-corr-eyebrow\">Engineering RFQ Support<\/div>\r\n        <h2>Prepare a Complete Corrosive Service PSV Datasheet Before Quotation<\/h2>\r\n        <p>\r\n          Send the protected equipment datasheet, medium composition, concentration, temperature, wet or dry condition, pH, chloride level, H\u2082S or CO\u2082 data, set pressure, relief scenario, required capacity, discharge route, back pressure, material requirement, valve configuration, 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-corr-btn-row\">\r\n          <a class=\"zobai-corr-btn zobai-corr-btn-primary\" href=\"\/contact\/\">Request Engineering Quote<\/a>\r\n          <a class=\"zobai-corr-btn zobai-corr-btn-secondary\" href=\"\/ask-an-engineer\/\">Ask an Engineer<\/a>\r\n          <a class=\"zobai-corr-btn zobai-corr-btn-secondary\" href=\"\/catalog-pdf\/\">Download Catalog PDF<\/a>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"zobai-corr-rfq-box\">\r\n        <h3>Minimum RFQ data<\/h3>\r\n        <div class=\"zobai-corr-rfq-grid\">\r\n          <div class=\"zobai-corr-rfq-item\">Protected Equipment<\/div>\r\n          <div class=\"zobai-corr-rfq-item\">Medium Chemistry<\/div>\r\n          <div class=\"zobai-corr-rfq-item\">Concentration<\/div>\r\n          <div class=\"zobai-corr-rfq-item\">Wet \/ Dry Condition<\/div>\r\n          <div class=\"zobai-corr-rfq-item\">Set Pressure<\/div>\r\n          <div class=\"zobai-corr-rfq-item\">Relief Scenario<\/div>\r\n          <div class=\"zobai-corr-rfq-item\">Required Capacity<\/div>\r\n          <div class=\"zobai-corr-rfq-item\">Temperature<\/div>\r\n          <div class=\"zobai-corr-rfq-item\">Discharge Route<\/div>\r\n          <div class=\"zobai-corr-rfq-item\">Material<\/div>\r\n          <div class=\"zobai-corr-rfq-item\">Valve Configuration<\/div>\r\n          <div class=\"zobai-corr-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-corr-accordion]');\r\n    accordions.forEach(function (accordion) {\r\n      var items = accordion.querySelectorAll('.zobai-corr-acc-item');\r\n\r\n      items.forEach(function (item) {\r\n        var button = item.querySelector('.zobai-corr-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 information is most important for selecting a corrosive service safety valve?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"The most important information is complete medium chemistry, concentration, temperature, wet or dry condition, pH, chloride content, H2S or CO2 content, phase, relief scenario, required capacity, discharge route and required material certificates.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"Is 316 stainless steel suitable for all corrosive service?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"No. 316 stainless steel may be unsuitable for hot chloride, strong acid, wet chlorine, sour service, high-temperature caustic or other aggressive media. 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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-75afbc9a 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=\"75afbc9a\" 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 sur 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2bac1696 e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"2bac1696\" 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-4f2763c7 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"4f2763c7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-579393a9 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"579393a9\" 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-375c14a3 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"375c14a3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-249520d9 cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"249520d9\" 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-22da7b64 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"22da7b64\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-4db71a39 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"4db71a39\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e058241 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"e058241\" 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-3efbd1a e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"3efbd1a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1d521c4b cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"1d521c4b\" 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\/it\/applications\/corrosive-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-3e923eaf cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"3e923eaf\" 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 sur 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-112b334b e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"112b334b\" 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-4791902b e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"4791902b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-27bbc7f4 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"27bbc7f4\" 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-5be7bc9d e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5be7bc9d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f9773d8 cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"f9773d8\" 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-7989ba3a e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"7989ba3a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-3b8fd082 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"3b8fd082\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-11d7a518 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"11d7a518\" 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-1ecbae58 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"1ecbae58\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7de7f465 cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"7de7f465\" 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\/it\/applications\/corrosive-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-34223da9 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"34223da9\" 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 sur 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-74e22f3d e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"74e22f3d\" 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-4a124527 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"4a124527\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-17754d54 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"17754d54\" 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-17179f83 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"17179f83\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-59ce0e0 cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"59ce0e0\" 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-42f434e1 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"42f434e1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-b4a2878 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"b4a2878\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-79611579 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"79611579\" 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-72b5d23e e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"72b5d23e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-15b3848a cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"15b3848a\" 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\/it\/applications\/corrosive-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-1931dab1 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"1931dab1\" 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 sur 4\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-70244622 e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"70244622\" 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-4a3c0445 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"4a3c0445\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6bf8a2fd e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"6bf8a2fd\" 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-5295f278 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5295f278\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fde1e0 cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"fde1e0\" 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-25c4d9ae e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"25c4d9ae\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6a151419 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"6a151419\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3957f86c cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"3957f86c\" 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-95cd9a4 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"95cd9a4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-519661c6 cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"519661c6\" 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\/it\/applications\/corrosive-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-c2f1e4e cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"c2f1e4e\" 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=\"Pr\u00e9c\u00e9dent\">\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=\"Suivant\">\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 Corrosive Service Safety Valves for Acid, Alkali, Sour Gas, Chloride and Chemical Media CONTACT SALES Corrosive Service PSV Selection Corrosive Service Safety Valves for Acid, Alkali, Sour Gas, Chloride and Chemical Media Corrosive service safety valves protect chemical reactors, acid storage tanks, caustic dosing skids, sour gas separators, amine units, scrubbers, chlorine systems, 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