All True Blue Check Valves feature rugged thermoplastic construction with no wetted metal parts. Secondly, some reverse pressure and flow must be present, because pressure is required to seal the ball exactly on the seat. Unsurpassed performance in a plastic check valve. Seal materials are EPDM and Viton. Leak-free sealing protects against the hazards of reverse flow.
Rapid closure helps to eliminate sudden back-flow water hammer.
No metal parts internally or externally. Leak-free sealing protects against the hazards of reverse flow. Rapid closure helps to eliminate sudden back-flow water hammer. Seal materials are EPDM and Viton. Leak-free sealing protects against the hazards of reverse flow.