Praher Series K6 4" Wafer Spring Check Valve, PVC Body, FKM Seal, 316 Stainless Steel Spring, 150 psi @ 72° F

Praher's K6 Series wafer check valve is engineered and molded with a hinge and spring design and requires no spacers in both ANSI and DIN piping. The disc design with conical sealing surface offers high reliability and maximizes operating costs. The flooded flapper hinge pins avoid sediment build up and are cylindrically embedded for optimal stress absorption. The K6 series can be installed horizontally or vertically and is rated up to 150 psi. Sizes from 1-1/2" to 12" are available with PVC bodies, EPDM, VITON or Teflon® encapsulated seals and either 316 stainless steel or Hastelloy® springs. Note: Do not use valves without springs for pulsating applications.