カートリッジ弁
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Note: Data may vary by configuration. See CONFIGURATION section.

Cavity 08W-2
Rated Flow 5.28 gpm 20 L/min
Maximum Operating Pressure 5000 psi 350 bar
Valve Hex Size 25/64 in. 10 mm
Valve Installation Torque 18 - 26 lbf-ft 25 - 35 Nm
Adjustment Screw Internal Hex Size 1/8 in. 3 mm
Locknut Hex Size 25/64 in. 10 mm
Locknut Torque 4 - 5 lbf-ft 5 - 7 Nm
Response Time-Typical 2 ms
Maximum Leakage Approximately 5 drops/min to 85% of nominal setting
Weight 0.24 lbs (Z=L) 0.11 kg (Z=L)
This is a direct-acting, poppet-type relief valve intended for use as a pressure-limiting device to protect hydraulic systems from pressure transients. The valve blocks flow from port 1 to port 2 until the pressure at port 1 is sufficient to overcome the valve setting, it lifts the poppet and opens to port 2 (tank) throttling flow to restrict the pressure rise. It provides fast response, rugged and dirt-tolerant operation, and good pressure vs. flow characteristics.

  • Maximum pressure can be accepted at port 2, but it is necessary to install double back-up rings to valve for cross port relief circuit application.
  • The maximum leakage is approximately 5 drops/min to 85% of nominal setting.
  • The valve cannot limit maximum pressure adjustment.
  • If you would like to assemble with other knob (for example, option Z= K or T), please kindly choose RD-08W-20-Y-Z-A.
  • Because this valve is designed to save space, locking the screw thoroughly will cause damage to the internal structure, if you have this concern, please select the valve with pressure limiting structure, for example, RD-08W-20-Y-Z-A.
  • Excellent stability throughout flow range with fast response to dynamic pressure changes
  • Back pressure at port 2 (tank port) is added directly to the valve setting in a 1:1 ratio.
  • Working parts are heat-treated and high-precision ground to increase hardness for long life and low leakage.
  • 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.