{"title":"Low Pressure Check Valves","description":"\u003ch2\u003eLow Pressure Check Valves\u003c\/h2\u003e\u003cp\u003ePrevent backflow and protect your soft wash and chemical delivery systems with professional low-pressure check valves. Our selection includes poly check valves with Hastelloy springs designed to withstand chemical exposure while ensuring one-way flow in downstream injection, soft wash pumps, and chemical transfer applications.\u003c\/p\u003e\u003ch3\u003eComplete Low Pressure Check Valve Solutions\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Sizes:\u003c\/strong\u003e 1\/2\", 3\/4\", and 1\" MPT and FPT configurations for various system requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Resistant Construction:\u003c\/strong\u003e Polypropylene and fiberglass-reinforced poly bodies with EPDM seals for bleach and chemical compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHastelloy Springs:\u003c\/strong\u003e Corrosion-resistant Hastelloy springs that withstand harsh chemicals without degrading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Ratings:\u003c\/strong\u003e Designed for low-pressure applications including soft wash systems and chemical injection setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you're protecting a soft wash pump from backflow, preventing chemical siphoning in downstream systems, or ensuring proper flow direction in chemical delivery lines, low-pressure check valves provide reliable one-way flow control. The chemical-resistant materials ensure long service life even when exposed to bleach, acids, and other harsh cleaning solutions.\u003c\/p\u003e\u003cp\u003eLooking for other valves? Browse our \u003ca href=\"\/collections\/valves-switches\" title=\"Valves \u0026amp; Switches\"\u003ecomplete valve selection\u003c\/a\u003e and \u003ca href=\"\/collections\/high-pressure-check-valves\" title=\"High Pressure Check Valves\"\u003ehigh pressure check valves\u003c\/a\u003e. Need soft wash components? Check out our \u003ca href=\"\/collections\/softwash\" title=\"Soft Wash Systems\"\u003esoft wash systems\u003c\/a\u003e and \u003ca href=\"\/collections\/all-products\" title=\"All Products\"\u003ecomplete product catalog\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"smc-1-2-poly-check-valve-w-1-3-pound-hasteloy-spring","title":"1\/2\" Check Valve With Hasteloy Spring 1\/3lb SMC Poly 22352 *16","description":"\u003cp\u003e1\/2\" Check Valve With Hasteloy Spring 1\/3lb SMC Poly\u003c\/p\u003e\u003cp\u003ePart No. 22352\u003c\/p\u003e","brand":"MPWSR","offers":[{"title":"Default Title","offer_id":48413115121961,"sku":"22210","price":23.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/6070\/3785\/files\/file_880b3f8e-959d-4f5d-aae7-ccdf73b756ac.png?v=1714670047"},{"product_id":"1-check-valve-with-hasteloy-spring-1-breaking-pressure","title":"1\" Check Valve with Hasteloy Spring Poly Check Valve 31415","description":"\u003cp\u003e1\" Check Valve with Hasteloy Spring 1lb breaking Pressure POLY\u003c\/p\u003e\u003cp\u003ePart No. 31415\u003c\/p\u003e","brand":"MPWSR","offers":[{"title":"Default Title","offer_id":48413341778217,"sku":"31415","price":33.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/6070\/3785\/files\/file_a7e4e6d8-26c4-497f-aa4b-6b91d7bfbfc8.png?v=1714671450"},{"product_id":"product_bc61488d-9225-471b-ad7c-2bd0eaec368f","title":"3\/4in check valve","description":"\u003cp\u003e3\/4\" FNPT x 3\/4\" FNPT Series 687 Polypropylene Check Valve with FKM Seals, 1\/3 PSI Cracking Pressure \u0026amp; 302 SS Spring\u003c\/p\u003e","brand":"MPWSR","offers":[{"title":"Default Title","offer_id":48581939626281,"sku":"22211","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/6070\/3785\/files\/checkval.png?v=1719854346"},{"product_id":"1-mnpt-x-1-fnpt-banjo®-black-fiberglass-reinforced-polypropylene-check-valve-with-epdm-seal","title":"1\" MNPT x 1\" FNPT Banjo® Black Fiberglass-Reinforced Polypropylene Check Valve with EPDM Seal","description":"\u003ch1 class=\"product-title jsFormatTitle\"\u003e1\" MNPT x 1\" FNPT Banjo\u003csup class=\"r\"\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eBlack Fiberglass-Reinforced Polypropylene Check Valve with EPDM Seal\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese polypropylene check valves have a one-piece construction.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFiberglass-reinforced polypropylene\u003c\/li\u003e\n\u003cli\u003eOne-piece construction\u003c\/li\u003e\n\u003cli\u003eEPDM gasket\u003c\/li\u003e\n\u003cli\u003e316 stainless steel spring\u003c\/li\u003e\n\u003cli\u003eSpring: 1 psi\u003c\/li\u003e\n\u003cli\u003eMaximum psi: 300\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MPWSR","offers":[{"title":"Default Title","offer_id":52212793671977,"sku":"30976","price":27.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/6070\/3785\/files\/30976psku.jpg?v=1764720729"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/6070\/3785\/collections\/file_880b3f8e-959d-4f5d-aae7-ccdf73b756ac.png?v=1769702147","url":"https:\/\/mpwsr.com\/collections\/low-pressure-check-valves.oembed","provider":"MPWSR x APE","version":"1.0","type":"link"}