{"product_id":"4-inch-flanged-cast-iron-swing-flex-check-valve-bu","title":"4 Inch Flanged Cast Iron Swing Flex Check Valve Built Tough For Water And Plumbing ASTM A126 250 PSI Max Cracking Pressure 0.25 PSI Horizontal Mount 11 Inch Long By 9 Inch Wide Heavy Duty Industrial Valve","description":"\u003cdiv\u003e4-Inch Flanged Cast Iron Swing Check Valve, 250 PSI\u003cbr\u003e\n✔️ Each unit, 250 psi max, 0.25 psi cracking, 11 x 9 in \u003cp\u003eThis 4 in. swing flex check valve uses cast iron (ASTM A126) with Buna N seat to prevent backflow in horizontal water and plumbing lines. It is compatible with residential, commercial, and light industrial piping where backflow protection is required.\u003c\/p\u003e \u003cp\u003e✅ Size 4 in., Flanged connection, Cast Iron ASTM A126\u003cbr\u003e✅ Max water pressure 250 psi\u003cbr\u003e✅ Cracking pressure 0.25 psi\u003cbr\u003e✅ Temperature range -70°F to 215°F\u003cbr\u003e✅ Seat material Buna N; Horizontal mounting\u003cbr\u003e✅ Flow up to 500 gpm; ANSI B16.1 Class 125\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is a 4 inch cast iron swing check valve used for in water and plumbing applications? This device helps prevent backflow in horizontal piping and protects pumping equipment.\u003cbr\u003e- Prevents reverse flow in water supply lines\u003cbr\u003e- Fits 4 in flange connections for ANSI B16.1 Class 125 systems\u003cbr\u003e- Uses Buna N seat for reliable sealing in hot and cold water\u003cbr\u003e- Suitable for residential, commercial, and light industrial installations\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49120437338347,"sku":"VXB01LZKZHXC","price":2261.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/81c4c5JWaFL.jpg?v=1785235539","url":"https:\/\/vxb.com\/products\/4-inch-flanged-cast-iron-swing-flex-check-valve-bu","provider":"VXB Bearings","version":"1.0","type":"link"}