Relief Valves

Parker 134 Series relief valves are diaphragm type valves that relieve excess pressure, thereby protecting pneumatic circuits and systems. These relief valves are ideal for applications where gradual proportional relief is required. They feature a compact design for narrow spaces and top adjustment knob to adjust relief range. The adjustment knob can be locked / unlocked via a push-pull mechanism and can be rotated in both clockwise & counter-clockwise directions to stop and start bleeding, respectively. These valves have a sensitive diaphragm for accurate operation.

Parker RV Series relief valves protect pneumatic circuits / systems against excess pressure for factory automation and automotive applications. These valves feature compact & lightweight aluminium construction for withstanding up to 55 psi pressures and a buna seal for leak proof operation. They have knurled knob adjustment mechanism for ease of calibration without any additional tool requirement.

Aquatrol 69 Series relief valves (field-adjustable) are used for controlling or limiting the system pressure to protect pumps, tanks, hydraulic equipment and pipelines. These units feature a bronze body with excellent ductility and corrosion resistance and manual adjustment of the relief pressure set-point by changing the force exerted by the stainless-steel spring. They come equipped with a hex cap for shielding the complete assembly and dual-lapped metal seating for eliminating leakages. Choose from an extensive range of these safety relief valves available in factory set pressures ranging between 15 & 300 psi on Raptor Supplies.