SUMMARY:  Cartridge

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This valve is a 4-way, 3 position, proportional directional valve. Work ports 2 and 4 are drained to 5 in the center position and port 3 is closed. Pilot pressure at port 1 opposes the spring and creates a variable metering orifice between ports 3 and 4 that is proportional to the pressure at 1. Piloting 6 opens 3 to 2. The force balance of the flow forces, spring and pilot pressure results in a degree of partial self compensation as the load pressure changes.

Pressure at ports 1 and 6 directly oppose each other.

  • Nominal operating pressures for port 1 and port 6 should not exceed 500 psi (35 bar).
  • The valve exhibits a degree of self compensation. If more precise regulation of flow is required, then a separate compensator should be considered. This may be achieved by the use of a bypass compensator, model LR*C-XHN, or a restrictive compensator, model LP*C-XHN.
  • Pressure at ports 1 and 6 directly oppose each other.
  • Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.

Cavity T-52A
Series 2
Capacity 7 gpm28 L/min.
Minimum Pilot Pressure Required to Shift Valve 80 psi5,5 bar
Pilot Pressure Required for Full Shift at Rated Flow 300 psi20 bar
Maximum Operating Pressure 5000 psi350 bar
Maximum Valve Leakage at 110 SUS (24 cSt) 2 in³/min.@1000 psi30 cc/min.@70 bar
Pilot Volume Displacement .04 in³0,66 cc
Hysteresis ± 2 %± 2 %
Valve Hex Size 1 1/8 in.28,6 mm
Valve Installation Torque 45 - 50 lbf ft61 - 68 Nm
Model Weight 1.00 lb0,45 kg
Seal kit - Cartridge Viton: 990-052-006

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