Flomatic 5357 290P 1/2" Plastic Check Valve

The Flomatic 5357 1/2" 290P plastic check valve is a compact polypropylene check valve designed to help maintain line pressure, prevent backflow, and protect downstream components. This model features a polypropylene body and poppet with a threaded female NPT x female NPT connection, 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).

Specifications:

Max Pressure: 150 psi (10 bar)

Max Temperature: 180°F (82°C)

Body: Polypropylene

Poppet: Polypropylene

Seal: Viton O-ring

Spring: Stainless steel

Connection: 1/2" FNPT x FNPT

Weight: 0.06 lbs

Operation: Flomatic 290P 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.

Construction: The polypropylene body and poppet, combined with stainless-steel spring construction and a Viton seal, provide excellent resistance to corrosion and many common water system chemicals. The straight-through flow path helps keep head loss low while maintaining reliable check action.

Applications: Residential and light commercial plumbing systems, water pressure maintenance, general utility water lines, and applications requiring a compact, non-metallic polypropylene check valve.

Manufacturer part number: 5357 Model 290P plastic check valve with 1/2" FNPT x FNPT connection.