Alberta Location

6556 – 28 Avenue NW
Edmonton, Alberta
T6L 6N3

(780) 232-9553

Ontario Location

8171 Yonge Street
Thornhill, Ontario
L3T 2C6


Walworth API-602 Piston Check Valve


Piston Check valves are generally used to protect pumps or similar equipment, allowing the flow in only one direction and preventing flow reversal due to back pressure. The piston check valves are designed with globe valve bodies, producing an increasing drop pressure in the pipeline. This design provides a tight seal as well as a fast reaction to the closure impulse.

Walworth offers this product line manufactured in accordance with API-602 and ANSI 800, 1500 and 2500 for socket weld, threaded and combined ends. Also available are integral flanges in 150, 300, 600 and 1500 either raised face or ring joint ends. Walworth offers the standard product line API-602 forged steel valves in wide variety of carbon steel, low and medium alloy materials, that can be used in combination with list of API-602 trims.

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