{"id":1857,"date":"2025-03-26T14:48:50","date_gmt":"2025-03-26T06:48:50","guid":{"rendered":"https:\/\/wanantec.com\/?post_type=product&p=1857"},"modified":"2026-04-05T20:38:01","modified_gmt":"2026-04-05T12:38:01","slug":"inline-self-resetting-valves","status":"publish","type":"product","link":"https:\/\/wanantec.com\/zh\/%e7%94%a2%e5%93%81\/inline-self-resetting-valves\/","title":{"rendered":"\u76f4\u901a\u5f0f\u81ea\u5fa9\u4f4d\u95a5"},"content":{"rendered":"
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Product Introduction<\/h4>
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WANAN self-reset sampling valve (model: WA-ZF series) is a hermetically sealed, automatic reset and anti-leakage sampling device specially designed for petroleum, chemical, environmental protection and other working conditions. Adopting spring automatic reset and dual-channel flow structure, it is widely used for safe sampling of high-temperature, high-pressure and corrosive media.<\/div>
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Working Principle<\/h4>
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  1. Opening<\/strong>: Manually press or rotate the handle to lift the valve core, opening the main flow path and sampling port for medium sampling.<\/li>
  2. Automatic Reset & Closing<\/strong>: After releasing the handle, the built-in high-strength spring instantly resets the valve core, realizing double sealing of the main passage and sampling port with zero leakage and no residue.<\/li>
  3. Safety Design<\/strong>: Equipped with vent \/ drain port for purging before sampling and residual discharge after sampling to avoid cross contamination.<\/li><\/ol>
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    Main Specifications<\/h4>
    \u00a0<\/div>
    • Body Material<\/strong>: CF8 (304), CF8M (316L) stainless steel, forged structure<\/li>
    • Reset Mechanism<\/strong>: Built-in stainless steel spring, service life \u2265 100,000 cycles<\/li>
    • Seal Material<\/strong>: PTFE, EPDM, FKM (Viton), high temperature and corrosion resistance<\/li>
    • Operating Temperature<\/strong>: -20\u2103 ~ 220\u2103<\/li>
    • Pressure Rating<\/strong>: PN16, PN25, PN40, PN64 (high pressure customizable)<\/li>
    • Connection Types<\/strong>: Flanged, threaded, clamped (tri-clamp), welded<\/li>
    • Nominal Diameter<\/strong>: DN10, DN15, DN20, DN25, DN32, DN40, DN50<\/li>
    • Surface Treatment<\/strong>: Sand blasting, mechanical polishing, electrolytic polishing (Ra \u2264 0.8\u03bcm for hygienic grade)<\/li><\/ul>

      Selection Guide<\/h4>
      • – Corrosive media: Choose 316L + PTFE<\/li>
      • – General media: Choose 304 + EPDM<\/li>
      • – High temperature: Choose PTFE or FKM<\/li>
      • – Hygienic application: Choose 316L with tri-clamp connection<\/li>
      • – Easy-crystallizing media: Choose jacketed insulated type<\/li><\/ul>\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>","protected":false},"excerpt":{"rendered":"

        \u76f4\u901a\u5f0f\u81ea\u5fa9\u4f4d\u95a5<\/p>","protected":false},"featured_media":4038,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[80],"product_cat":[57],"product_tag":[],"class_list":["post-1857","product","type-product","status-publish","has-post-thumbnail","product_brand-wanlok","product_cat-category-self-resetting-samplers","pa_port-1-size-1inch","pa_port-1-size-1-2inch","pa_port-1-size-3-4inch","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","purchasable","product-type-variable","wvs-archive-product-wrapper"],"acf":[],"_links":{"self":[{"href":"https:\/\/wanantec.com\/zh\/wp-json\/wp\/v2\/product\/1857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wanantec.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/wanantec.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/wanantec.com\/zh\/wp-json\/wp\/v2\/comments?post=1857"}],"version-history":[{"count":16,"href":"https:\/\/wanantec.com\/zh\/wp-json\/wp\/v2\/product\/1857\/revisions"}],"predecessor-version":[{"id":4518,"href":"https:\/\/wanantec.com\/zh\/wp-json\/wp\/v2\/product\/1857\/revisions\/4518"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wanantec.com\/zh\/wp-json\/wp\/v2\/media\/4038"}],"wp:attachment":[{"href":"https:\/\/wanantec.com\/zh\/wp-json\/wp\/v2\/media?parent=1857"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/wanantec.com\/zh\/wp-json\/wp\/v2\/product_brand?post=1857"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/wanantec.com\/zh\/wp-json\/wp\/v2\/product_cat?post=1857"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/wanantec.com\/zh\/wp-json\/wp\/v2\/product_tag?post=1857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}