Walworth API-602 Ball Check Valve
Ball 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 Ball Check can be used for high viscosity fluid. The sealing ability of the check valves depends on the pressure of the back flow and the viscosity of the fluid.
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.