Cartridge Valves
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  • Product Description
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  • Technical Reference
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Note: Data may vary by configuration. See CONFIGURATION section.

Cavity 11A-3
Rated Flow 10.57 gpm 40 L/min
Control Pilot Flow 0.03 - 0.04 gpm 0.11 - 0.16 L/min
Maximum Operating Pressure 5000 psi 350 bar
Valve Hex Size 7/8 in. 22.22 mm
Valve Installation Torque 30 - 37 lbf-ft 40 - 50 Nm
Weight 0.22 lbs 0.1 kg
This is a pilot-operated, spool-type reducing valve with an integral 8A-2 control cavity for use with any 8A-2 pressure control cartridge valve (such as PRB-8A-2C or PRA-8A-2C). It reduces high pressure at port 2 to a constant reduced pressure at port 1. The pressure differential between port 1 and port 3 (drain port) is determined by the pilot valve.

  • The maximum inlet pressure is determined by the bias spring. The D spring is limited to 140 bar (2000 psi) maximum differential pressure and the W spring is limited to 350 (5000 psi) maximum inlet pressure.
  • This valve can be used with 8A2 cavity pilot control valves. For example, when paired with the Winner proportional relief valve PRB-8A-2D, it becomes a high-performance proportional relief valve with a maximum pressure of up to 350 bar (5000 psi).
  • Working parts are heat-treated and high-precision ground to increase hardness for long life.
  • A variety of seal kit materials for different applications, see seals information under Technical Reference.
  • Winner's cartridges pressure rating tested to the standard of the NFPA specification T2.6.1 and the fatigue rating's assurance and verification level is "90/90".
  • WINNERcoat® Zinc-Nickel Plating is salt spray tested in accordance with DIN EN ISO 9227 for up to 1000 hours.
  • Winner guarantees that all products performance a 100% functional test before shipment.