Pressure Relief Valves, Back Pressure Valves

Sigmamotor Inc. diaphragm back pressure valves are used to enhance the performance of chemical feed pumps and systems by providing a constant discharge head pressure to prevent system flow-through. Sigmamotor Inc. pressure relief valves ensure total pump protection in the event of system overpressurization.

Griffco Valve, Inc., manufactures high quality chemical feed equipment for pumps and systems, including back pressure valves, pressure relief valves, calibration columns, injection valves, corporation stops, gauge guards, pulsation dampeners, Y strainers, and other chemical feed accessories.