Cartridge Valves
  • Technical Data
  • Product Description
  • Performance Curve
  • Technical Reference
  • Files

Note: Data may vary by configuration. See CONFIGURATION section.

Cavity 3A-2
Rated Flow 52.83 gpm 200 L/min
Maximum Operating Pressure 5000 psi 350 bar
Valve Hex Size 1-1/8 in. 28.57 Nm
Valve Installation Torque 44 - 52 lbf-ft 60 - 70 Nm
Adjustment Screw Internal Hex Size 5/32 in. 4 mm
Locknut Hex Size 9/16 in. 14.27 mm
Locknut Torque 6 - 7 lbf-ft 9 - 10 Nm
Maximum Leakage Approximately 50 cc/min at 1000 psi 50 cc/min at 70 bar
Weight 0.57 lbs (Z=L) 0.26 kg (Z=L)
This is a pilot-operated, kick-down, balanced piston relief valve. If the pressure at port 1 is less than the valve setting, the valve remains closed. When the pressure at port 1 reaches the valve setting, the main piston will open and relieve pressure from port 1 to port 2, maintaining a low-pressure status until the hydraulic system is closed and reset. It functions similarly to an electrical circuit breaker.

  • Pilot port is protected for contamination resistance by a stainless-steel filter screen.
  • Back pressure at port 2 (tank port) is added directly to the valve setting in a 1:1 ratio.
  • This valve is not proper to use in load holding applications due to spool leakage.
  • 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.