{"product_id":"flomatic-297d-3-8-inch-plastic-check-valve-5359","title":"Flomatic 5359 297D 3\/8\" Plastic Check Valve","description":"\u003cp\u003eThe Flomatic 5359 3\/8\" 297D plastic check valve is a compact, corrosion-resistant check valve designed to help maintain line pressure, prevent backflow, and protect downstream components. This model features an acetal body with a threaded female NPT x female NPT connection, a Nylon 11 poppet, a Viton seal, and a stainless-steel spring. The valve is rated for a maximum working pressure of 150 psi and a maximum temperature of 180°F (82°C).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMax Pressure: 150 psi (10 bar)\u003c\/p\u003e\n\u003cp\u003eMax Temperature: 180°F (82°C)\u003c\/p\u003e\n\u003cp\u003eBody: Acetal thermoplastic\u003c\/p\u003e\n\u003cp\u003ePoppet: Nylon 11\u003c\/p\u003e\n\u003cp\u003eSeal: Viton O-ring\u003c\/p\u003e\n\u003cp\u003eSpring: Stainless steel\u003c\/p\u003e\n\u003cp\u003eConnection: 3\/8\" FNPT x FNPT\u003c\/p\u003e\n\u003cp\u003eWeight: 0.04 lbs\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation:\u003c\/strong\u003e Flomatic 297D 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, supporting stable system performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e The all-thermoplastic body and internal components, combined with stainless-steel spring construction, provide excellent resistance to corrosion and chemical attack in many water handling applications. The straight-through flow path helps keep head loss low while maintaining reliable check action.\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\u003eManufacturer part number: 5359 Model 297D plastic check valve with 3\/8\" FNPT x FNPT connection.\u003c\/em\u003e\u003c\/p\u003e","brand":"Flomatic","offers":[{"title":"Default Title","offer_id":46627995648163,"sku":"5359","price":22.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/2058\/5123\/files\/Flomatic_297D-290P.png?v=1765321214","url":"https:\/\/dadepump.com\/products\/flomatic-297d-3-8-inch-plastic-check-valve-5359","provider":"Dade Pump \u0026 Supply","version":"1.0","type":"link"}