{"product_id":"flomatic-100mp-1-1-4-m-x-1-f-plastic-check-valve","title":"Flomatic 4221MP 100MP 1 1\/4\" M x 1\" F Plastic Check Valve","description":"\u003cp\u003eThe Flomatic 4221MP 1 1\/4\" M x 1\" F 100MP plastic check valve is a compact, high-strength thermoplastic check valve designed to help maintain system pressure, prevent backflow, and protect downstream components. This model features a unibody Noryl® GTX 830 body with a Nitrile (Buna-N) seal, a Hostaform® poppet head with polypropylene follower, and a 302 stainless-steel spring in a stemless, anti-spin design. The threaded male x female NPT connection allows for easy installation in a variety of plumbing and water system layouts, and the valve is rated for a maximum working pressure of 300 psi and a maximum temperature of 150°F (65°C).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMax Pressure: 300 psi (21 bar)\u003c\/p\u003e\n\u003cp\u003eMax Temperature: 150°F (65°C)\u003c\/p\u003e\n\u003cp\u003eBody: High-strength Noryl® GTX 830 thermoplastic, unibody design\u003c\/p\u003e\n\u003cp\u003eSeal: Nitrile (Buna-N)\u003c\/p\u003e\n\u003cp\u003ePoppet: Hostaform® resin dome with polypropylene follower\u003c\/p\u003e\n\u003cp\u003eSpring: 302 stainless steel, large diameter for even spring load and long life\u003c\/p\u003e\n\u003cp\u003eCracking Pressure: 0.25 psi\u003c\/p\u003e\n\u003cp\u003eFlow Coefficient (Cv): 12\u003c\/p\u003e\n\u003cp\u003eElectrical: Non-conductive design helps eliminate electrolysis\u003c\/p\u003e\n\u003cp\u003eConnection: 1 1\/4\" M x 1\" F NPT\u003c\/p\u003e\n\u003cp\u003eWeight: 0.17 lbs\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Flomatic 100MP plastic check valves are designed to provide years of trouble-free operation when properly sized and installed in suitable water and plumbing systems. The internal spring-loaded poppet closes quickly at low reverse flow to help minimize backflow, water hammer, and pressure loss, while the low head loss design supports efficient system performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e The unibody thermoplastic construction provides high tensile strength (up to 4000 lb maximum tensile load) and resistance to common installation materials such as pipe dope. The non-conductive body helps eliminate electrolysis in mixed-metal piping systems, and the stemless, anti-spin poppet design helps ensure smooth, reliable operation over the life of the valve.\u003c\/p\u003e\n\u003cp\u003eThe stainless-steel spring and internal hardware, combined with the engineered plastic body and poppet materials, provide excellent resistance to corrosion and wear in demanding water and plumbing environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e Residential and light commercial plumbing systems, water pressure maintenance, general utility water lines, and applications requiring a compact, non-metallic check valve.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eModel 4221MP 100MP includes a 1 1\/4\" male NPT x 1\" female NPT thermoplastic body for easy inline installation.\u003c\/em\u003e\u003c\/p\u003e","brand":"Flomatic","offers":[{"title":"Default Title","offer_id":46627670687907,"sku":"4221MP","price":17.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/2058\/5123\/files\/Flomatic_100MP.png?v=1765308094","url":"https:\/\/dadepump.com\/products\/flomatic-100mp-1-1-4-m-x-1-f-plastic-check-valve","provider":"Dade Pump \u0026 Supply","version":"1.0","type":"link"}