Quick Exhaust Valves

UNIJET Quick exhaust valves provide rapid exhaust of control air when placed between control valve and actuator. The valve should be mounted directly in the cylinder’s connection port and should be provided with a silencer. Diaphragm materials are available in Nitrile and Viton, to meet a wide variety of operating conditions.

Notable features of our valves are

  • Compact, 3-ported valves have oversized orifice for quick exhaust of cylinders, brakes, actuators, clutches, etc.
  • Allow use of smaller pipe lines and control components
  • Mountable in any position
Body Aluminium (LM 4)
Internal Parts Aluminium
Diaphragm Nitrile Or Viton (optional)
Working Media Filtered and Lubricated or Non lubricated Air
Pilot Port Size 1/4" BSP
Operation Diaphragm operated
Temperature Range -20ºC to 80ºC (for Nitrile seals)
-20ºC to 250ºC (for Viton seals)
Pressure Ratings 0-230 PSI (0-16 bar)
BSP Pipe size(inches) Pilot pressure(bar) Opening Pressure(bar) Weight(Kg) Model Number
3/8 0 to 16 Greater than pilot pressure 0.217 QEV G6
3/4 0 to 16 Greater than pilot pressure 0.533 QEV G12
1 0 to 16 Greater than pilot pressure 1.072 QEV G16
1 1/2 0 to 16 Greater than pilot pressure 2.297 QEV G24
2 0 to 16 Greater than pilot pressure 2.554 QEV G32

INLET/OUTLET PIPE SIZES (inches) 3/8 3/4 1 1 1/2 2
Pilot Port 6.35 6.35 6.35 6.35 6.35
A 58 83 106 114 114
B 66 91 111 144 169
C Hex 63 Hex 87 Hex 108 Hex 138 Hex 165

All Dimensions are in mm

  • Conventional Quick exhaust application
  • Quick exhaust of cylinders, brakes, actuators, clutches, etc.
  • Persistent pressure application
  • Check valve application