{"id":55704,"date":"2026-07-22T07:13:18","date_gmt":"2026-07-22T07:13:18","guid":{"rendered":"https:\/\/zobai.com\/?page_id=55704"},"modified":"2026-08-05T12:21:41","modified_gmt":"2026-08-05T12:21:41","slug":"zba21-external-thread-low-lift-safety-valve","status":"publish","type":"page","link":"https:\/\/zobai.com\/ru\/safety-valves\/threaded-safety-valves\/zba21-external-thread-low-lift-safety-valve\/","title":{"rendered":"ZBA21 \u041f\u0440\u0435\u0434\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u043a\u043b\u0430\u043f\u0430\u043d \u043d\u0438\u0437\u043a\u043e\u043f\u043e\u0434\u044a\u0435\u043c\u043d\u044b\u0439 \u0441 \u043d\u0430\u0440\u0443\u0436\u043d\u043e\u0439 \u0440\u0435\u0437\u044c\u0431\u043e\u0439"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"55704\" class=\"elementor elementor-55704 elementor-bc-flex-widget\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-130f6488 e-con-full e-flex cmsmasters-block-default e-con e-parent\" data-id=\"130f6488\" 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-5114388b e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5114388b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7f7e56c5 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-shortcode\" data-id=\"7f7e56c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-172392ee cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"172392ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">ZBA21 Series External Thread Low-Lift Safety Valve<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-22bc1c3e cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"22bc1c3e\" 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>Spring Low Lift External Thread Safety Valve for small pressure equipment and pipelines requiring compact overpressure protection. Key selection data include DN15-DN25, PN16, PN25, PN40, PN64 and PN100 for A21H\/W; PN16, PN25 and PN40 for A21F, A21H\/W: up to 200 deg C; A21F: up to 80 deg C, materials, connection standard and set pressure.<\/p><p>Final set pressure, certified relieving capacity, material code and connection standard must be confirmed on the approved datasheet before purchase.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-744c9a1f e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"744c9a1f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3edbca elementor-widget__width-initial elementor-icon-list--layout-traditional elementor-list-item-link-full_width cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-icon-list\" data-id=\"3edbca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Size range: DN15-DN25<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Pressure rating: PN16, PN25, PN40, PN64 and PN100 for A21H\/W; PN16, PN25 and PN40 for A21F<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Temperature: A21H\/W: up to 200 deg C; A21F: up to 80 deg C<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bfc558f elementor-widget__width-initial elementor-icon-list--layout-traditional elementor-list-item-link-full_width cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-icon-list\" data-id=\"6bfc558f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Connection: External threaded inlet\/outlet<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Media: Air, ammonia, petroleum gas, corrosive gas or liquid, liquefied gas and petroleum gas depending on H\/W\/F configuration<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Drawings, test records and material documents confirmed for the ordered configuration.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-18ad34fc elementor-align-left cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"18ad34fc\" data-element_type=\"widget\" data-e-type=\"widget\" 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=\"\/contacts\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Request Product Review<\/span>\n\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<div class=\"elementor-element elementor-element-589a3e2d e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"589a3e2d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8cdffdf cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"8cdffdf\" 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<figure class=\"wp-caption\">\n\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\/05\/A21H-DN15-Stainless-Male-Thread-Safety-Valve.webp\" class=\"attachment-large size-large wp-image-53367\" alt=\"ZBA21 External Thread Low-Lift Safety Valve product image\" srcset=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A21H-DN15-Stainless-Male-Thread-Safety-Valve.webp 850w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A21H-DN15-Stainless-Male-Thread-Safety-Valve-300x300.webp 300w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A21H-DN15-Stainless-Male-Thread-Safety-Valve-150x150.webp 150w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A21H-DN15-Stainless-Male-Thread-Safety-Valve-768x768.webp 768w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A21H-DN15-Stainless-Male-Thread-Safety-Valve-12x12.webp 12w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A21H-DN15-Stainless-Male-Thread-Safety-Valve-260x260.webp 260w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Actual A21H DN15 stainless steel threaded safety valve image representing a ZBA21 series configuration; final supply depends on the approved model and material code.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-42b91126 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"42b91126\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-32fb836f elementor-align-left cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"32fb836f\" data-element_type=\"widget\" data-e-type=\"widget\" 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=\"\/resources\/safety-valve-pdf-downloads\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">View Product Catalog<\/span>\n\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 class=\"elementor-element elementor-element-35b4494c elementor-align-left cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"35b4494c\" data-element_type=\"widget\" data-e-type=\"widget\" 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=\"\/contacts\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Send RFQ Data<\/span>\n\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>\n\t\t<div class=\"elementor-element elementor-element-127c3bd e-con-full e-flex cmsmasters-block-default e-con e-parent\" data-id=\"127c3bd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-33047b5b cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"33047b5b\" 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\">Technical Specifications and Selection Data<\/h2>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4898564e e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"4898564e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-7f3f1728 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"7f3f1728\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5b88a989 elementor-pagination-position-outside elementor--h-position-center elementor--v-position-middle elementor-arrows-position-inside cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-slides\" data-id=\"5b88a989\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;navigation&quot;:&quot;both&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;infinite&quot;:&quot;yes&quot;,&quot;transition&quot;:&quot;slide&quot;,&quot;transition_speed&quot;:500}\" data-widget_type=\"slides.default\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-slides-wrapper elementor-main-swiper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Slides\" dir=\"ltr\" data-animation=\"fadeInUp\">\n\t\t\t\t<div class=\"swiper-wrapper elementor-slides\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-repeater-item-2ae882f swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"ZBA21 External Thread Low-Lift Safety Valve product image\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-681cbc03 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"681cbc03\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-603aaa2d e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"603aaa2d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-102d3d63 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"102d3d63\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-14a594e8 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"14a594e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Product Model<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53bebfe2 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"53bebfe2\" 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>ZBA21H\/ZBA21W-16\/25\/40\/64\/100 C\/P\/R; ZBA21F-16\/25\/40 C\/P\/R<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5e4f8dda e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5e4f8dda\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-73345f52 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"73345f52\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Size Range<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-404c5b9c cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"404c5b9c\" 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>DN15-DN25<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2011b538 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"2011b538\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2b16e5c6 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"2b16e5c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Pressure Rating<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77b1ba32 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"77b1ba32\" 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>PN16, PN25, PN40, PN64 and PN100 for A21H\/W; PN16, PN25 and PN40 for A21F<\/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<div class=\"elementor-element elementor-element-252da100 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"252da100\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-1d49e98 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"1d49e98\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1cf6a02e cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"1cf6a02e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Temperature Range<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c090641 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"1c090641\" 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>A21H\/W: up to 200 deg C; A21F: up to 80 deg C<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5c96a6cb e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5c96a6cb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6637a3e2 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"6637a3e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Applicable Media<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45329685 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"45329685\" 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>Air, ammonia, petroleum gas, corrosive gas or liquid, liquefied gas and petroleum gas depending on H\/W\/F configuration<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4d20386e e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"4d20386e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-539a9f33 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"539a9f33\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Connection Type<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-114e0fed cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"114e0fed\" 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>External threaded inlet\/outlet<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e419846 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"e419846\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4ac9f0e0 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"4ac9f0e0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Standards and Compliance<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-653ea4e7 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"653ea4e7\" 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>GB\/T 12241, GB\/T 12242 and GB\/T 12243 for safety valve design, performance and test references; model coding follows the JB\/T 308 valve model method where applicable.<\/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<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4cb8f63c e-con-full e-flex cmsmasters-block-default e-con e-parent\" data-id=\"4cb8f63c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6ea47ac2 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"6ea47ac2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3232af6e e-n-tabs-mobile cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-n-tabs\" data-id=\"3232af6e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;tabs_justify_horizontal&quot;:&quot;center&quot;,&quot;tabs_justify_horizontal_mobile&quot;:&quot;start&quot;,&quot;horizontal_scroll&quot;:&quot;disable&quot;}\" data-widget_type=\"nested-tabs.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-tabs\" data-widget-number=\"842182510\" aria-label=\"Onglets. Ouvrez des \u00e9l\u00e9ments avec Entrer ou Espace, fermez-les avec Echape et naviguez \u00e0 l&#039;aide des touches fl\u00e9ch\u00e9es.\">\n\t\t\t<div class=\"e-n-tabs-heading\" role=\"tablist\">\n\t\t\t\t\t<button id=\"e-n-tab-title-8421825101\" data-tab-title-id=\"e-n-tab-title-8421825101\" class=\"e-n-tab-title\" aria-selected=\"true\" data-tab-index=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"e-n-tab-content-8421825101\" style=\"--n-tabs-title-order: 1;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tEngineering Insight\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-8421825102\" data-tab-title-id=\"e-n-tab-title-8421825102\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-8421825102\" style=\"--n-tabs-title-order: 2;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tDimensions and Selection\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t<button id=\"e-n-tab-title-8421825103\" data-tab-title-id=\"e-n-tab-title-8421825103\" class=\"e-n-tab-title\" aria-selected=\"false\" data-tab-index=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"e-n-tab-content-8421825103\" style=\"--n-tabs-title-order: 3;\">\n\t\t\t\t\t\t<span class=\"e-n-tab-title-text\">\n\t\t\t\tFailure and Quality Review\t\t\t<\/span>\n\t\t<\/button>\n\t\t\t\t\t<\/div>\n\t\t\t<div class=\"e-n-tabs-content\">\n\t\t\t\t<div id=\"e-n-tab-content-8421825101\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-8421825101\" data-tab-index=\"1\" style=\"--n-tabs-title-order: 1;\" class=\"e-active elementor-element elementor-element-4ce1623f e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"4ce1623f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-323b0a43 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"323b0a43\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3f6f7582 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"3f6f7582\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Engineering Insight: Model Logic and Application Boundary<\/h2>\n<p><strong>Model code:<\/strong> A21 = safety valve with external thread connection and low-lift spring structure. H\/W\/F identify sealing or material configuration; pressure digits identify PN rating; C\/P\/R identify body material code.<\/p>\n<p><strong>Typical application:<\/strong> small pressure equipment and pipelines requiring compact overpressure protection<\/p>\n<p><strong>Capacity review:<\/strong> Main connection dimensions are listed on the source catalog page. Discharge capacity and orifice sizing should be confirmed by set pressure, medium, temperature and applicable code.<\/p>\n<p>This product family should not be selected from model code, nominal size or pressure class alone. Confirm the relieving scenario, required capacity, set pressure, operating margin, temperature, back pressure and actual connection standard.<\/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<div id=\"e-n-tab-content-8421825102\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-8421825102\" data-tab-index=\"2\" style=\"--n-tabs-title-order: 2;\" class=\" elementor-element elementor-element-427c8119 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"427c8119\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-406199ba e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"406199ba\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-66d14ae1 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"66d14ae1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Dimensions and Selection Guide<\/h2>\n<p>The table below is transcribed from catalog page 15. Verify critical dimensions against the approved order drawing before fabrication or piping release.<\/p>\n<div style=\"overflow-x:auto;margin:20px 0 30px\"><table style=\"width:100%;min-width:760px;border-collapse:collapse\"><caption style=\"text-align:left;font-weight:800;margin-bottom:10px\">Catalog page 015 &#8211; Parameter Table 1<\/caption><thead><tr><th style=\"padding:12px;border:1px solid #dfe7e4;background:#eaf5f1;text-align:left\">Type \/ Model<\/th><th style=\"padding:12px;border:1px solid #dfe7e4;background:#eaf5f1;text-align:left\">Nominal Diameter (DN)<\/th><th style=\"padding:12px;border:1px solid #dfe7e4;background:#eaf5f1;text-align:left\">do<\/th><th style=\"padding:12px;border:1px solid #dfe7e4;background:#eaf5f1;text-align:left\">d<\/th><th style=\"padding:12px;border:1px solid #dfe7e4;background:#eaf5f1;text-align:left\">DO<\/th><th style=\"padding:12px;border:1px solid #dfe7e4;background:#eaf5f1;text-align:left\">M<\/th><th style=\"padding:12px;border:1px solid #dfe7e4;background:#eaf5f1;text-align:left\">d1<\/th><th style=\"padding:12px;border:1px solid #dfe7e4;background:#eaf5f1;text-align:left\">D1<\/th><th style=\"padding:12px;border:1px solid #dfe7e4;background:#eaf5f1;text-align:left\">L<\/th><th style=\"padding:12px;border:1px solid #dfe7e4;background:#eaf5f1;text-align:left\">L1<\/th><th style=\"padding:12px;border:1px solid #dfe7e4;background:#eaf5f1;text-align:left\">Approx. H<\/th><\/tr><\/thead><tbody><tr><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">A21H\/W\/F-16\/25\/40C\/P\/R<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">15<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">12<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">15<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">20<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">M27x1.5<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">G1\/2&quot;<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">30<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">35<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\"><\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">74<\/td><\/tr><tr><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">A21H\/W\/F-16\/25\/40C\/P\/R<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">20<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">16<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">20<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">25<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">M33x1.5<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">G3\/4&quot;<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">34<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">40<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">87<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\"><\/td><\/tr><tr><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">A21H\/W\/F-16\/25\/40C\/P\/R<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">25<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">18<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">25<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">31<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">M39x1.5<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">G1&quot;<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">44<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">52<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">100<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">105<\/td><\/tr><tr><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">A21Y\/W-64\/100C\/P\/R<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">15<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">10<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">15<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">25<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">M36x1.5<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">G1&quot;<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">44<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">52<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">100<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">105<\/td><\/tr><tr><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">A21Y\/W-64\/100C\/P\/R<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">20<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">10<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">20<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">31<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">M39x1.5<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">G1&quot;<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">44<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">52<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">100<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">105<\/td><\/tr><tr><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">A21Y\/W-64\/100C\/P\/R<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">25<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">12<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">25<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">31<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">M42x1.5<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">G1&quot;<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">44<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">52<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">100<\/td><td style=\"padding:11px 12px;border:1px solid #dfe7e4;vertical-align:top\">105<\/td><\/tr><\/tbody><\/table><\/div>\n<h3>RFQ checklist<\/h3>\n<p>RFQ checklist: model or valve type, DN\/NPS, PN\/Class, set pressure, relieving medium, operating temperature, body and trim material, inlet\/outlet connection standard, cap\/lever\/pilot options, quantity, drawing, certificate and inspection requirements.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div id=\"e-n-tab-content-8421825103\" role=\"tabpanel\" aria-labelledby=\"e-n-tab-title-8421825103\" data-tab-index=\"3\" style=\"--n-tabs-title-order: 3;\" class=\" elementor-element elementor-element-1b145bf5 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"1b145bf5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-697d75ab e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"697d75ab\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3a23d850 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"3a23d850\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Failure Analysis, Manufacturing Evidence and Quality Control<\/h2>\n<p><strong>Common misapplication risks:<\/strong> incorrect thread or connection standard, insufficient certified relieving capacity, unsuitable body or trim material, operating pressure too close to set pressure, unreviewed back pressure, and installation loads transferred to the valve.<\/p>\n<p><strong>Material review:<\/strong> body materials: WCB carbon steel, ZG15Cr1Mo alloy steel, ZG15Cr1Mo1V\/ZG20Cr1Mo1V high-temperature alloy steel, CF8\/304, CF8M\/316 or CF3M\/316L according to model body code and service. Trim and internals: 20Cr13, 304, 316, 316L or alloy trim according to body code and medium; corrosive or high-temperature service can use stainless or alloy internals. Spring and stem: 50CrVA spring for standard service; stainless or coated fluoroplastic\/304 spring options for corrosive service where specified.<\/p>\n<p><strong>Testing and inspection:<\/strong> Set pressure calibration, shell strength test, seat tightness\/leakage test, reseating\/blowdown check, dimensional inspection and material verification can be supplied according to the confirmed standard and order requirements.<\/p>\n<p><strong>Source and scope:<\/strong> product data is based on Zobai Safety Valve Product Catalog.pdf, catalog page 15. Project compliance remains subject to the approved datasheet, drawing, calculation and controlled certificates for the ordered configuration.<\/p>\n<p>Review <a href=\"\/resources\/material-certificates\/\">material traceability<\/a>, <a href=\"\/resources\/type-test-certificates\/\">type-test scope<\/a> and <a href=\"\/resources\/safety-valve-certificates\/\">project certificate requirements<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\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<\/div>\n\t\t\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-5bb187f3 e-con-full e-flex cmsmasters-block-default e-con e-parent\" data-id=\"5bb187f3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-70ff8efb cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"70ff8efb\" 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\">Related Products<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c4c9f14 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=\"c4c9f14\" 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-688590f e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"688590f\" 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-9169f1e e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"9169f1e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-d97e1e6 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"d97e1e6\" 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-dd6f4d1 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"dd6f4d1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-90a4571 cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"90a4571\" 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\/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-e38c456 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"e38c456\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ed4acab e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"ed4acab\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6ad7fb4 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"6ad7fb4\" 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-a0b56b6 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"a0b56b6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b486a2 cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"7b486a2\" 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=\"\/safety-valves\/pilot-operated-safety-valves\/\">\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-c63ef45 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"c63ef45\" 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-2649685 e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"2649685\" 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-5539eba e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"5539eba\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-29dfebd e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"29dfebd\" 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-8e47987 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"8e47987\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-48a43ec cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"48a43ec\" 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-defbee5 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"defbee5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-db4dfef e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"db4dfef\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9c03db4 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"9c03db4\" 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-b30688f e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"b30688f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1fa9086 cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"1fa9086\" 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=\"\/safety-valves\/bellows-balanced-safety-valves\/\">\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-550c97b cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"550c97b\" 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-c37fad2 e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"c37fad2\" 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-1ee6a3a e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"1ee6a3a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-fa20ec4 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"fa20ec4\" 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-780f74b e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"780f74b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-04cba0d cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"04cba0d\" 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 loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"850\" src=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A68SB-DN200-Welded-Steam-Safety-Valve.webp\" class=\"attachment-large size-large wp-image-53478\" alt=\"ZBA68SB-100\/160\/210\/550 C\/I\/V ZBA68 Series High Temperature and High Pressure Steam Safety Valve product image\" srcset=\"https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A68SB-DN200-Welded-Steam-Safety-Valve.webp 850w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A68SB-DN200-Welded-Steam-Safety-Valve-300x300.webp 300w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A68SB-DN200-Welded-Steam-Safety-Valve-150x150.webp 150w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A68SB-DN200-Welded-Steam-Safety-Valve-768x768.webp 768w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A68SB-DN200-Welded-Steam-Safety-Valve-12x12.webp 12w, https:\/\/zobai.com\/wp-content\/uploads\/2026\/05\/A68SB-DN200-Welded-Steam-Safety-Valve-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-0155fef e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"0155fef\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-2b4fa96 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"2b4fa96\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fad0654 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"fad0654\" 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-26b96c4 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"26b96c4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5b4d30f cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"5b4d30f\" 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=\"\/safety-valves\/high-temperature-safety-valves\/\">\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-8ad154b cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"8ad154b\" 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-08386bb e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"08386bb\" 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-8a388a0 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"8a388a0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-387d6b7 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"387d6b7\" 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-344293d e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"344293d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-959c81b cmsmasters-clip-path-yes cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-image\" data-id=\"959c81b\" 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 loading=\"lazy\" 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-70e017d e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"70e017d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-c7a459e e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"c7a459e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4fb9ea5 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"4fb9ea5\" 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-30ed9e0 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"30ed9e0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d016bbc cmsmasters-effect cmsmasters-effect-type-transform cmsmasters-effect-hover-type-element cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-button\" data-id=\"d016bbc\" 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=\"\/safety-valves\/sanitary-safety-valves\/\">\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-7dc45fc cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-text-editor\" data-id=\"7dc45fc\" 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<section class=\"elementor-element elementor-element-9f291a9 e-con-full e-flex cmsmasters-block-default e-con e-parent\" data-id=\"9f291a9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-03ef609 e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"03ef609\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-433166b e-con-full e-flex cmsmasters-block-default e-con e-child\" data-id=\"433166b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2a9a6e2 elementor-position-inline-start elementor-mobile-position-inline-start elementor-view-default cmsmasters-block-default cmsmasters-sticky-default elementor-invisible elementor-widget elementor-widget-icon-box\" data-id=\"2a9a6e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;cmsmasters-fade-in-left&quot;}\" data-widget_type=\"icon-box.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\n\t\t\t\t<span  class=\"elementor-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrows-2\"><\/i>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\t\t\t\t\t<h3 class=\"elementor-icon-box-title\">\n\t\t\t\t\t\t<span  >\n\t\t\t\t\t\t\tFAQ\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-abfd5dd elementor-widget__width-inherit cmsmasters-block-default cmsmasters-sticky-default elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"abfd5dd\" 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<h2 class=\"elementor-heading-title elementor-size-default\">Safety Valve FAQs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div data-animation-type=\"block\" class=\"animation_type_block elementor-element elementor-element-0df902f cmsmasters-trigger-icon-view-framed cmsmasters-title-alignment-left cmsmasters-item-icon-position-left animation_type_block cmsmasters-block-default cmsmasters-sticky-default elementor-invisible elementor-widget elementor-widget-cmsmasters-toggles cmsmasters-widget-toggles\" data-animation-stagger=\"200\" data-separate-animation-selector=\".elementor-widget-cmsmasters-toggles__item\" data-text-animation-class=\"sequental, random\" data-id=\"0df902f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;toggles&quot;:[{&quot;toggle_title&quot;:&quot;What models are covered by this ZBA21 External Thread Low-Lift Safety Valve page?&quot;,&quot;toggle_content&quot;:&quot;&lt;p&gt;ZBA21H\\\/ZBA21W-16\\\/25\\\/40\\\/64\\\/100 C\\\/P\\\/R; ZBA21F-16\\\/25\\\/40 C\\\/P\\\/R&lt;\\\/p&gt;&quot;,&quot;_id&quot;:&quot;c9de870&quot;,&quot;content_type&quot;:&quot;toggle-content&quot;,&quot;saved_section&quot;:null,&quot;saved_template&quot;:null,&quot;item_icon&quot;:{&quot;value&quot;:&quot;&quot;,&quot;library&quot;:&quot;&quot;},&quot;toggle_custom_id&quot;:&quot;&quot;},{&quot;toggle_title&quot;:&quot;What size, pressure and temperature data should be confirmed?&quot;,&quot;toggle_content&quot;:&quot;&lt;p&gt;Size: DN15-DN25. Pressure: PN16, PN25, PN40, PN64 and PN100 for A21H\\\/W; PN16, PN25 and PN40 for A21F. Temperature: A21H\\\/W: up to 200 deg C; A21F: up to 80 deg C. Confirm the exact combination for the selected model.&lt;\\\/p&gt;&quot;,&quot;_id&quot;:&quot;c49b52d&quot;,&quot;content_type&quot;:&quot;toggle-content&quot;,&quot;saved_section&quot;:null,&quot;saved_template&quot;:null,&quot;item_icon&quot;:{&quot;value&quot;:&quot;&quot;,&quot;library&quot;:&quot;&quot;},&quot;toggle_custom_id&quot;:&quot;&quot;},{&quot;toggle_title&quot;:&quot;Which media can this product family handle?&quot;,&quot;toggle_content&quot;:&quot;&lt;p&gt;Air, ammonia, petroleum gas, corrosive gas or liquid, liquefied gas and petroleum gas depending on H\\\/W\\\/F configuration. Material and sealing compatibility require review for the actual fluid composition and temperature.&lt;\\\/p&gt;&quot;,&quot;_id&quot;:&quot;223f22f&quot;,&quot;content_type&quot;:&quot;toggle-content&quot;,&quot;saved_section&quot;:null,&quot;saved_template&quot;:null,&quot;item_icon&quot;:{&quot;value&quot;:&quot;&quot;,&quot;library&quot;:&quot;&quot;},&quot;toggle_custom_id&quot;:&quot;&quot;},{&quot;toggle_title&quot;:&quot;Can the catalog dimension table be used for final fabrication?&quot;,&quot;toggle_content&quot;:&quot;&lt;p&gt;Use it for preliminary review only. Confirm critical dimensions, connection details and orientation on the approved order drawing before piping or equipment fabrication.&lt;\\\/p&gt;&quot;,&quot;_id&quot;:&quot;44dd9d4&quot;,&quot;content_type&quot;:&quot;toggle-content&quot;,&quot;saved_section&quot;:null,&quot;saved_template&quot;:null,&quot;item_icon&quot;:{&quot;value&quot;:&quot;&quot;,&quot;library&quot;:&quot;&quot;},&quot;toggle_custom_id&quot;:&quot;&quot;},{&quot;toggle_title&quot;:&quot;What should be included in the RFQ?&quot;,&quot;toggle_content&quot;:&quot;&lt;p&gt;RFQ checklist: model or valve type, DN\\\/NPS, PN\\\/Class, set pressure, relieving medium, operating temperature, body and trim material, inlet\\\/outlet connection standard, cap\\\/lever\\\/pilot options, quantity, drawing, certificate and inspection requirements.&lt;\\\/p&gt;&quot;,&quot;_id&quot;:&quot;7e1a6a3&quot;,&quot;content_type&quot;:&quot;toggle-content&quot;,&quot;saved_section&quot;:null,&quot;saved_template&quot;:null,&quot;item_icon&quot;:{&quot;value&quot;:&quot;&quot;,&quot;library&quot;:&quot;&quot;},&quot;toggle_custom_id&quot;:&quot;&quot;}],&quot;_animation&quot;:&quot;cmsmasters-fade-in-up&quot;,&quot;type&quot;:&quot;toggles&quot;}\" data-widget_type=\"cmsmasters-toggles.default\">\n\t\t\t\t\t<div class=\"elementor-widget-cmsmasters-toggles__list\"><div class=\"elementor-widget-cmsmasters-toggles__item\"><h4 id=\"elementor-tab-title-1461\" class=\"elementor-widget-cmsmasters-toggles__title\" data-tab=\"1\" aria-expanded=\"false\" aria-controls=\"elementor-widget-cmsmasters-toggles__content-1461\" tabindex=\"0\"><a class=\"elementor-widget-cmsmasters-toggles__title-link cmsmasters_enable_trigger_icon\" href=\"#\" tabindex=\"-1\"><span class=\"elementor-widget-cmsmasters-toggles__title-text\">What models are covered by this ZBA21 External Thread Low-Lift Safety Valve page?<\/span><\/a><span class=\"elementor-widget-cmsmasters-toggles__trigger\"><span class=\"elementor-widget-cmsmasters-toggles__trigger-closed\"><i aria-hidden=\"true\" aria-label=\"Closed\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrow-down\"><\/i><\/span><span class=\"elementor-widget-cmsmasters-toggles__trigger-opened\"><svg aria-hidden=\"true\" aria-label=\"Opened\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span><\/span><\/h4><div id=\"elementor-widget-cmsmasters-toggles__content-1461\" class=\"elementor-widget-cmsmasters-toggles__content elementor-clearfix\" data-tab=\"1\"><p>ZBA21H\/ZBA21W-16\/25\/40\/64\/100 C\/P\/R; ZBA21F-16\/25\/40 C\/P\/R<\/p><\/div><\/div><div class=\"elementor-widget-cmsmasters-toggles__item\"><h4 id=\"elementor-tab-title-1462\" class=\"elementor-widget-cmsmasters-toggles__title\" data-tab=\"2\" aria-expanded=\"false\" aria-controls=\"elementor-widget-cmsmasters-toggles__content-1462\" tabindex=\"0\"><a class=\"elementor-widget-cmsmasters-toggles__title-link cmsmasters_enable_trigger_icon\" href=\"#\" tabindex=\"-1\"><span class=\"elementor-widget-cmsmasters-toggles__title-text\">What size, pressure and temperature data should be confirmed?<\/span><\/a><span class=\"elementor-widget-cmsmasters-toggles__trigger\"><span class=\"elementor-widget-cmsmasters-toggles__trigger-closed\"><i aria-hidden=\"true\" aria-label=\"Closed\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrow-down\"><\/i><\/span><span class=\"elementor-widget-cmsmasters-toggles__trigger-opened\"><svg aria-hidden=\"true\" aria-label=\"Opened\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span><\/span><\/h4><div id=\"elementor-widget-cmsmasters-toggles__content-1462\" class=\"elementor-widget-cmsmasters-toggles__content elementor-clearfix\" data-tab=\"2\"><p>Size: DN15-DN25. Pressure: PN16, PN25, PN40, PN64 and PN100 for A21H\/W; PN16, PN25 and PN40 for A21F. Temperature: A21H\/W: up to 200 deg C; A21F: up to 80 deg C. Confirm the exact combination for the selected model.<\/p><\/div><\/div><div class=\"elementor-widget-cmsmasters-toggles__item\"><h4 id=\"elementor-tab-title-1463\" class=\"elementor-widget-cmsmasters-toggles__title\" data-tab=\"3\" aria-expanded=\"false\" aria-controls=\"elementor-widget-cmsmasters-toggles__content-1463\" tabindex=\"0\"><a class=\"elementor-widget-cmsmasters-toggles__title-link cmsmasters_enable_trigger_icon\" href=\"#\" tabindex=\"-1\"><span class=\"elementor-widget-cmsmasters-toggles__title-text\">Which media can this product family handle?<\/span><\/a><span class=\"elementor-widget-cmsmasters-toggles__trigger\"><span class=\"elementor-widget-cmsmasters-toggles__trigger-closed\"><i aria-hidden=\"true\" aria-label=\"Closed\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrow-down\"><\/i><\/span><span class=\"elementor-widget-cmsmasters-toggles__trigger-opened\"><svg aria-hidden=\"true\" aria-label=\"Opened\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span><\/span><\/h4><div id=\"elementor-widget-cmsmasters-toggles__content-1463\" class=\"elementor-widget-cmsmasters-toggles__content elementor-clearfix\" data-tab=\"3\"><p>Air, ammonia, petroleum gas, corrosive gas or liquid, liquefied gas and petroleum gas depending on H\/W\/F configuration. Material and sealing compatibility require review for the actual fluid composition and temperature.<\/p><\/div><\/div><div class=\"elementor-widget-cmsmasters-toggles__item\"><h4 id=\"elementor-tab-title-1464\" class=\"elementor-widget-cmsmasters-toggles__title\" data-tab=\"4\" aria-expanded=\"false\" aria-controls=\"elementor-widget-cmsmasters-toggles__content-1464\" tabindex=\"0\"><a class=\"elementor-widget-cmsmasters-toggles__title-link cmsmasters_enable_trigger_icon\" href=\"#\" tabindex=\"-1\"><span class=\"elementor-widget-cmsmasters-toggles__title-text\">Can the catalog dimension table be used for final fabrication?<\/span><\/a><span class=\"elementor-widget-cmsmasters-toggles__trigger\"><span class=\"elementor-widget-cmsmasters-toggles__trigger-closed\"><i aria-hidden=\"true\" aria-label=\"Closed\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrow-down\"><\/i><\/span><span class=\"elementor-widget-cmsmasters-toggles__trigger-opened\"><svg aria-hidden=\"true\" aria-label=\"Opened\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span><\/span><\/h4><div id=\"elementor-widget-cmsmasters-toggles__content-1464\" class=\"elementor-widget-cmsmasters-toggles__content elementor-clearfix\" data-tab=\"4\"><p>Use it for preliminary review only. Confirm critical dimensions, connection details and orientation on the approved order drawing before piping or equipment fabrication.<\/p><\/div><\/div><div class=\"elementor-widget-cmsmasters-toggles__item\"><h4 id=\"elementor-tab-title-1465\" class=\"elementor-widget-cmsmasters-toggles__title\" data-tab=\"5\" aria-expanded=\"false\" aria-controls=\"elementor-widget-cmsmasters-toggles__content-1465\" tabindex=\"0\"><a class=\"elementor-widget-cmsmasters-toggles__title-link cmsmasters_enable_trigger_icon\" href=\"#\" tabindex=\"-1\"><span class=\"elementor-widget-cmsmasters-toggles__title-text\">What should be included in the RFQ?<\/span><\/a><span class=\"elementor-widget-cmsmasters-toggles__trigger\"><span class=\"elementor-widget-cmsmasters-toggles__trigger-closed\"><i aria-hidden=\"true\" aria-label=\"Closed\" class=\"cmsmsdemo-icon- cmsms-demo-icon-arrow-down\"><\/i><\/span><span class=\"elementor-widget-cmsmasters-toggles__trigger-opened\"><svg aria-hidden=\"true\" aria-label=\"Opened\" class=\"e-font-icon-svg e-fas-chevron-up\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/span><\/span><\/h4><div id=\"elementor-widget-cmsmasters-toggles__content-1465\" class=\"elementor-widget-cmsmasters-toggles__content elementor-clearfix\" data-tab=\"5\"><p>RFQ checklist: model or valve type, DN\/NPS, PN\/Class, set pressure, relieving medium, operating temperature, body and trim material, inlet\/outlet connection standard, cap\/lever\/pilot options, quantity, drawing, certificate and inspection requirements.<\/p><\/div><\/div> <script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What models are covered by this ZBA21 External Thread Low-Lift Safety Valve page?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>ZBA21H\\\/ZBA21W-16\\\/25\\\/40\\\/64\\\/100 C\\\/P\\\/R; ZBA21F-16\\\/25\\\/40 C\\\/P\\\/R<\\\/p>\"}},{\"@type\":\"Question\",\"name\":\"What size, pressure and temperature data should be confirmed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>Size: DN15-DN25. Pressure: PN16, PN25, PN40, PN64 and PN100 for A21H\\\/W; PN16, PN25 and PN40 for A21F. Temperature: A21H\\\/W: up to 200 deg C; A21F: up to 80 deg C. Confirm the exact combination for the selected model.<\\\/p>\"}},{\"@type\":\"Question\",\"name\":\"Which media can this product family handle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>Air, ammonia, petroleum gas, corrosive gas or liquid, liquefied gas and petroleum gas depending on H\\\/W\\\/F configuration. Material and sealing compatibility require review for the actual fluid composition and temperature.<\\\/p>\"}},{\"@type\":\"Question\",\"name\":\"Can the catalog dimension table be used for final fabrication?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>Use it for preliminary review only. Confirm critical dimensions, connection details and orientation on the approved order drawing before piping or equipment fabrication.<\\\/p>\"}},{\"@type\":\"Question\",\"name\":\"What should be included in the RFQ?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>RFQ checklist: model or valve type, DN\\\/NPS, PN\\\/Class, set pressure, relieving medium, operating temperature, body and trim material, inlet\\\/outlet connection standard, cap\\\/lever\\\/pilot options, quantity, drawing, certificate and inspection requirements.<\\\/p>\"}}]}<\/script> <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f131682 e-con-full cmsmasters-clip-path-yes e-flex cmsmasters-bg-hide-none cmsmasters-bg-hide-none cmsmasters-block-default elementor-invisible e-con e-child\" data-id=\"f131682\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;cmsmasters-fade-in&quot;}\">\n\t\t\t\t<\/div>\n\t\t\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>ZBA21 Series External Thread Low-Lift Safety Valve Spring Low Lift External Thread Safety Valve for small pressure equipment and pipelines requiring compact overpressure protection. Key selection data include DN15-DN25, PN16, PN25, PN40, PN64 and PN100 for A21H\/W; PN16, PN25 and PN40 for A21F, A21H\/W: up to 200 deg C; A21F: up to 80 deg C,&#8230;<\/p>","protected":false},"author":2,"featured_media":0,"parent":52345,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-55704","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/pages\/55704","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/comments?post=55704"}],"version-history":[{"count":1,"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/pages\/55704\/revisions"}],"predecessor-version":[{"id":56210,"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/pages\/55704\/revisions\/56210"}],"up":[{"embeddable":true,"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/pages\/52345"}],"wp:attachment":[{"href":"https:\/\/zobai.com\/ru\/wp-json\/wp\/v2\/media?parent=55704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}