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

Cavity 19A-3 (19AB-3)
Rated Flow 126.8 gpm 480 L/min
Maximum Operating Pressure 5000 psi 350 bar
Valve Hex Size 1-5/8 in. 41.2 mm
Valve Installation Torque 343 - 369 lbf-ft 465 - 500 Nm
Maximum Leakage Approximately 0.7 cc/min at 1000 psi 0.7 cc/min at 70 bar
Weight 2.985 lbs 1.355 kg
This is vent-to-open, balanced poppet, normally closed logic element valve primarily used for bidirectional flow switching applications. When pilot pressure is applied at port 3, the valve opens, allowing flow between port 1 and port 2.

  • We suggest that using above 30 bar pilot pressure at port 3 when port 1 and port 2 are 350 bar. In order to ensure shifting quickly for every kinds of pressure and flow.
  • The maximum leakage is approximately 0.7 cc/min at 70 bar (1000 psi).
  • All ports can withstand up to 350 bar (5000 psi).
  • If you have any question about using condition of shifting pressure and circuit, please feel free to consult the Winner sales department.
  • 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 vs. flow rate for the LB-19A-3R vent-to-open, balanced poppet, normally closed logic element valve in the fully open position. The curves show the relationship between pressure drop and flow rate.