These all-plastic, corrosion resistant swing check valves feature a valve body having two separate seats.
Two-Seat Check Valve
These all-plastic, corrosion resistant swing check valves feature a valve body having two separate seats. Should one seat wear or lose its bubble-tight seal, realigning the internal seal assembly puts the valve back in service. Small sizes are rated at 225 psi at 70 °F; larger sizes, 150 psi at 70 °F. O-ring seals for flanged connections are standard as are two drain ports. Also the valves feature a built-in clapper stop and a self-aligning clapper seal that provides bubble-tight sealing with 3 psi, or less, back-pressure. The valves are available in 3-, 4-, 6-, and 8-in. size with flanged connections in PVC or PPL construction and either Viton® ® or EPDM seals. An optional closing-assist counterweight design is available.
Hayward Industrial Products, Inc., 900 Fairmount Avenue, Elizabeth, NJ 07207. Tel: (908) 351-5400; Fax: (908) 351-7706.
Viton® is a registered trademark of DuPont Performance Elastomers.