Check Valves - Check Fittings - Flanged & Socket Check Valves for Pipelines

A check valve - check fittings or one-way valve is a valve that normally allows the flow of liquid (liquid or gas) in only one direction. Check valves are two-way valves, meaning they have two openings in the housing, one for the inlet and one for the outlet of the liquid. There are various types of check valves used in a wide range of applications. There are different check valve seals such as NBR, EPDM, FPM-VITON, and PTFE. These seals can be selected based on the application, such as temperature, medium, and other factors. Nominal sizes: DN15 - DN500; 1/4" - 20" Connection: Flange, Thread Housing material: Stainless steel, Steel, Brass, GG25, GGG40, Duplex, Super duplex Pressure rating: PN6, PN10, PN16, PN25, PN40, ANSI class 150, ANSI class 300 Seal: EPDM, NBR, PTFE, FPM/FKM - (Viton), Graphite, Metallic, PFA lined, Polyurethane