{"id":3514,"date":"2026-02-04T09:17:48","date_gmt":"2026-02-04T01:17:48","guid":{"rendered":"https:\/\/ptfesuppliers.com\/?post_type=product&p=3514"},"modified":"2026-03-31T15:35:32","modified_gmt":"2026-03-31T07:35:32","slug":"pfa-lined-swing-check-valve","status":"publish","type":"product","link":"https:\/\/ptfesuppliers.com\/es\/product\/pfa-lined-swing-check-valve\/","title":{"rendered":"PFA Lined Swing Check Valve"},"content":{"rendered":"

El PFA Lined Swing Check Valve<\/strong> is specifically engineered for highly corrosive chemical pipeline systems<\/strong>, providing reliable backflow prevention while maintaining exceptional chemical resistance and media purity.<\/p>\n

By combining a CF8 (304 stainless steel) external body<\/strong> with a full PFA-lined internal flow path<\/strong>, this valve delivers outstanding durability, leak-free performance, and long service life in aggressive operating environments.<\/p>\n

It is widely used in chemical processing, pharmaceuticals, electroplating, semiconductor manufacturing, and hydrometallurgy applications.<\/p>\n

Exceptional Corrosion Resistance with Full PFA Lining<\/h2>\n

All wetted parts of the valve are completely lined with high-purity PFA (Perfluoroalkoxy)<\/strong>, creating a chemically inert barrier between the process medium and the metal body.<\/p>\n

This construction enables the valve to safely handle strong acids, alkalis, halogens, oxidizers, and organic solvents<\/strong>, including sulfuric acid, hydrochloric acid, hydrofluoric acid, aqua regia, bromine, and various aggressive chemical mixtures.<\/p>\n

The full lining effectively eliminates corrosion, erosion, and metal ion contamination.<\/p>\n

Reliable Sealing & Backflow Prevention<\/h2>\n

The valve features a precision swing check structure<\/strong>, allowing the disc to open automatically under forward flow and close instantly when flow reverses, preventing backflow and system contamination.<\/p>\n

Advanced lining and molding processes ensure that the PFA lining is tightly bonded to the CF8 stainless steel body<\/strong>, with no gaps or voids. The sealing surfaces typically use PFA-to-PFA<\/strong> or PFA reinforced composite materials<\/strong>, ensuring stable, long-term sealing performance even under frequent operation.<\/p>\n

Clean, Non-Stick & Easy to Maintain<\/h2>\n

The ultra-smooth PFA surface offers a very low friction coefficient<\/strong>, effectively preventing crystal formation, scaling, and media adhesion. This makes the valve ideal for high-purity, crystallizing, or particle-sensitive fluids<\/strong>, while simplifying system cleaning and maintenance procedures.<\/p>\n

Robust Structure & International Standard Design<\/h2>\n

The external valve body is manufactured from ASTM A351 CF8 (304 stainless steel)<\/strong>, providing excellent mechanical strength and pressure resistance. This robust metal shell protects the internal PFA lining from external impact and pipeline stress.<\/p>\n

Standard ANSI and JIS flange connections<\/strong> ensure easy installation, excellent interchangeability, and compatibility with global piping systems.<\/p>\n

Extended Service Life & Lower Total Cost of Ownership<\/h2>\n

Compared to conventional stainless steel or plastic check valves, the PFA lined swing check valve offers significantly longer service life in corrosive environments<\/strong>, greatly reducing downtime, replacement frequency, maintenance costs, and safety risks associated with leakage or corrosion failure.<\/p>\n

Typical Applications<\/h2>\n
    \n
  • \n

    Semiconductor and electronic chemicals (HF, HNO\u2083, IPA, etching solutions, photoresist strippers)<\/p>\n<\/li>\n

  • \n

    Wet-process metallurgy and electroplating lines<\/p>\n<\/li>\n

  • \n

    Fine chemicals and pharmaceutical manufacturing (API production, corrosive solvents)<\/p>\n<\/li>\n

  • \n

    Environmental protection and flue gas treatment systems<\/p>\n<\/li>\n

  • \n

    Laboratories and pilot plants handling unknown or aggressive chemicals<\/p>\n<\/li>\n<\/ul>\n

    Product Highlights<\/h2>\n
      \n
    • \n

      Full PFA lining for near-universal chemical resistance<\/p>\n<\/li>\n

    • \n

      Zero leakage design with reliable backflow prevention<\/p>\n<\/li>\n

    • \n

      Smooth, non-stick internal surface for high-purity service<\/p>\n<\/li>\n

    • \n

      Strong CF8 stainless steel outer shell for pressure resistance<\/p>\n<\/li>\n

    • \n

      ANSI \/ JIS standard flanged connections<\/p>\n<\/li>\n

    • \n

      Long service life with minimal maintenance<\/p>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Valve Type: PFA Lined Swing Check Valve
      Application: Highly corrosive chemical media
      Pressure Rating: ANSI 150# \/ JIS 10K (PN20)
      Valve Body Material: ASTM A351 CF8 (304 Stainless Steel)
      Lining Material: PFA (Perfluoroalkoxy)
      Seal Surface Material: PFA or PFA reinforced composite
      Working Temperature: -20\u00b0C to +150\u00b0C (media and pressure dependent)
      Working Pressure: Up to 2.0 MPa (20 bar) at ambient temperature
      Connection Type: Flanged (RF), ANSI B16.5 \/ JIS B2220
      Design Feature: Swing-type disc, low pressure drop, fast response<\/p>","protected":false},"featured_media":3860,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[31,30],"product_tag":[],"class_list":{"0":"post-3514","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ptfe-pfa-lined-valves","7":"product_cat-fluoropolymer-lining-products","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"gallery_images":[3507,3505,3506],"_links":{"self":[{"href":"https:\/\/ptfesuppliers.com\/es\/wp-json\/wp\/v2\/product\/3514","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ptfesuppliers.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ptfesuppliers.com\/es\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/ptfesuppliers.com\/es\/wp-json\/wp\/v2\/comments?post=3514"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ptfesuppliers.com\/es\/wp-json\/wp\/v2\/media\/3860"}],"wp:attachment":[{"href":"https:\/\/ptfesuppliers.com\/es\/wp-json\/wp\/v2\/media?parent=3514"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ptfesuppliers.com\/es\/wp-json\/wp\/v2\/product_brand?post=3514"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ptfesuppliers.com\/es\/wp-json\/wp\/v2\/product_cat?post=3514"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ptfesuppliers.com\/es\/wp-json\/wp\/v2\/product_tag?post=3514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}