Check Valve

Design: Body Design: Generally, lift check valves have a straightforward design with a body that houses a movable disc or piston. Disc/Piston: The disc or piston is lifted or moved by the flow of fluid to allow passage through the valve. When flow stops or reverses, the disc/piston seats against the valve body to prevent backflow. Spring-Assisted (Optional): Some lift check valves may include springs to assist in closing the valve promptly and prevent slam upon reversal of flow. Operation: Automatic Operation: Lift check valves operate automatically based on the flow of fluid. When fluid flows in the intended direction, the disc/piston lifts, allowing flow through the valve. Prevents Backflow: Upon cessation of flow or if flow reverses, the disc/piston seats against the valve seat under gravity or spring force, preventing backflow. Materials: Body Materials: Commonly made from materials such as carbon steel, stainless steel, ductile iron, bronze, or other alloys depending on the application and fluid characteristics. Disc/Piston Materials: Typically stainless steel, bronze, or other corrosion-resistant alloys to ensure durability and reliability.

Design: Dual plate check valves are designed with two halves (plates) that are hinged together. The plates are typically made of materials like stainless steel, carbon steel, or alloys suitable for the fluid and temperature conditions. Size Range: Available in a wide range of sizes, typically from DN 50 (2 inches) to DN 2000 (80 inches) or even larger for special applications. Pressure Rating: Pressure ratings can vary widely depending on the design and materials, but commonly ranges from ANSI Class 150 to 2500 or PN 10 to PN 420. End Connections: Dual plate check valves can have various end connections including flanged ends (ANSI, DIN, BS), butt weld ends, and sometimes threaded or socket weld ends for smaller sizes.

Size: 1/2" to 36, Body - Cast Iron, Carbon Steel, WCB, CF8, CF8M, Hastelloy, Bronze, Duplex, Super Duplex, Alloy, LCB etc., Disc: WCB, CF8, CF8M, Hastelloy, Super Duplex, LCB etc., Seat: EPDM, Nitrile, PTFE, Viton etc., Type: Ball type, Wafer Type, Piston Type, Spring Loaded.

International Standards: API 600, API 602, API 603, API 594, API 620, API 626, API 627, API 526, ASME 16.34, ASME 16.10, ISO 5208, ISO 5752, ISO 17292,ISO 15607, BS, EN, MSS Sizes: inch “ 36 inch

International Standards: API 600, API 602, API 603, API 594, API 620, API 626, API 627, API 526, ASME 16.34, ASME 16.10, ISO 5208, ISO 5752, ISO 17292,ISO 15607, BS, EN, MSS Sizes: inch “ 36 inch Material: Carbon Steel, Stainless Steel, Duplex, Super Duplex, Alloy Steel, Copper, Brass and Bronze Inconel, Monel, Hastelloy, etc. Standards- API, ASME, ISO, BS, EN, ASME B16 and MSS.