Check Valves are self-actuated, one-way directional devices that rely on the pressure and velocity of the fluid to open and automatically close when the flow stops or reverses. Their primary mechanism involves a hinged disc, lifting plug, or spring-loaded plate designed to prevent backflow.

Fluids: Water, Steam, Oil, Gas

Industrial Applications: Oil & Gas, HVAC, Water Treatment

Connection Methods: Flanged, Butt Weld, Socket Weld, Threaded, Wafer, Lugged, Grooved

Highlights: Automatic Operation, No External Power Required, Prevents Backflow Damage

Considerations: Significant Pressure Drop, Subject to Water Hammer

SPECIFICATIONS

• Materials: Carbon Steel, Alloy Steel, Stainless Steel, Cast Iron, Ductile Iron, Bronze, Forged Steel

• Types: Swing Check, Lift Check, Piston Check, Spring Check, Dual Plate Wafer Check, Axial Flow Check, Non-Slam (Silent) Check

• Sizes: 1/2" to 48"

• Pressure Ratings: Class 150 to 2500, PN10 to PN420

• Standards: API 602, ASME B16.34, EN 12334, JIS10K, MSS-SP-80