Cast Steel Check Valve

(F6F)Cast Steel check valve is designed to allow flow in one direction only, it also has an excellent protection performance against fire hazards. The unidirectional flow is due to the tilted disc and spring. The flow of the convergent inlet section accelerates the flow of media, padding the pressure in the system and increasing the tightness of the valve. The check valve achieves good sealing performance due to the structure of the sealing face.This valve is mainly used in oil, gas, water and other pipelines to prevent the backflow of fluid and protect the safety of the system.SpecificationNominal Diameter 2-24 inches Pressure Class 150Lb-600Lb Body/Bonnet WCB/Cast Steel Seat/Disc Cast Steel/SS Standard ANSI B16.34, BS1868 End Connection Flanged or Butt-WeldedMaterialParts Name Carbon Steel Stainless Steel A105 LF2 F316/316L Bonnet A105 LF2 F316/316L Disc A216 WCB F304/F316 Sealing Surface of Disc 13Cr F304/F316 Plugs A216 WCB F304/F316 Stem A182 F6 F 304/F316 Gland A216 WCB F304/F316 Packing Graphite/ PTFE A105/F304 Packing Gland A182 F6 F304/F316