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

Cavity 21AS-4
Rated Flow 15.85 gpm 60 L/min
Maximum Operating Pressure 5000 psi 350 bar
Maximum Leakage Approximately 0.07 cc/min
Valve Hex Size 7/8 in. 22.22 mm
Valve Installation Torque 30 - 37 lbf-ft 40 - 50 Nm
Weight 0.29 lbs 0.13 kg
This valve is a vented, pilot-to-open check valve. It allows free flow from port 2 to port 1 while blocking flow from port 1 to port 2. Pressure applied to the pilot port (port 4) will allow flow from port 1 to port 2, which is directly proportional to the load pressure at port 1. Due to the referenced spring chamber vent (port 3), this valve is insensitive to pressure at port 2.

  • This valve can prevent the drifting of loads and securely locks pressurized loads, also provides protection to a pipe rupture or hose break.
  • Internal components are made of highquality materials, processed heat treatment and precision grinding to achieve excellent wear resistance and protection against contamination for long-lasting durability.
  • Virtually leak-free. If the valve causes the load to drift, the seat may be damaged by contamination. Please replace the valve immediately.
  • Pilot-to-open check valves are not intended to be used as motion control valves. If motion control is required in a circuit, please choose counterbalance valves.
  • Industry common cavity.
  • This valve is suitable for mounting in regenerative circuits or for controlling motors or cylinders.
  • Available bias springs for back pressure applications flexibility.
  • Consider using a check valve instead of a counterbalance valve if overrunning loads or controlled release speed are not critical in the application.
  • Maximum pressure at vent port (port 3) should less than 350 bar (5000 psi).
  • Based on the same flow rate, installation position, flow path, and cavity, four-port pilot-to-open check valves and four-port counterbalance valves are interchangeable. However, please note that there are functional differences and variations in external dimensions between them.
  • Vent port (port 3) is connected to the spring chamber, please keep it clear and unblocked, otherwise seal leakage may cause the valve to lose its function.
  • External components are WINNERcoat® Zinc-Nickel Plating for 1000 hours salt spray test according to DIN EN ISO 9227. Also, some ordering code with letter "P" at the end is stainless steel external components. The ordering code with letter "S" at the end is all components of cartridge valve are made of stainless steel for special requirements such as deep sea, marine or water based hydraulic.
  • Winner guarantees that all products performance a 100% functional test before shipment.