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

Cavity 12WS-3
Rated Flow 37 gpm 150 L/min
Maximum Operating Pressure 5000 psi 350 bar
Valve Hex Size 1-1/8 in. 28.57 mm
Valve Installation Torque 33 - 41 lbf-ft 45 - 55 Nm
Weight 0.79 lbs 0.36 kg
This is a spool-type, normally closed, bypass compensated, modulating logic element valve. It can be used as a bypass compensator. When pressure at port 1 exceeds the spring bias, the spool shifts to allow flow from port 1 to port 2 and maintains a constant flow rate from port 3 regardless of load pressure changes. Pilot pressure at port 3 adds directly to the valve setting at a 1:1 ratio. 

  • 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.
pressure differential versus flow rate curve for the the LR12WS30 spool type, normally closed, bypass compensated modulating logic valve, showing how the pressure differential varies with different flow rates during valve fully open from port 1 to port 2                                    typical pressure rise curve for LR12WS30 spool type, normally closed, bypass compensated modulating logic element valve, showing flow from port 1 to port 2 and no pressure at port 3