We manufacture and export check valves for pump discharge, boiler feed, HVAC circulation and process water lines. Every valve is shell tested at 1.5x nominal pressure and seat tested at 1.1x before packing. Choose a silent check valve where the pump trips often, a swing check valve for horizontal headers, and a slow-closing butterfly type where water hammer must be capped. Send a pipe list and our engineers will select the type, size and spring rate.