Turning the handle clockwise will increase the spring exerted tension to increase the regulator output pressure. Rotating the handle counter-clockwise will decrease the regulator o

The Pressure Switch valves are operated by the pressure applied to the sense port acting on a piston opposing an adjustable spring force. 3 way valve is a block and bleed valve.It

The MRR series relays are multi-pressure control valve for production control and safety systems. It functions as a manual reset, pilot operated, normally closed, block and bleed v