SYMBOL
DESCRIPTION
The PD12-40 is a screw-in, cartridge style, pilot-operated, spool type, hydraulic directional valve.
OPERATION
On no remote pilot signal at port 1, the valve allows flow from port 3 to port 2 bi-directionally, while flow is blocked at port 4, spring chamber vent-to-atmosphere, which is internally 0-ring sealed from the cartridge flow paths. On no remote pilot signal at port 1, the valve shifts to open from port 3 to port 4, while blocking flow at port 2. Because of the vented spring chamber, the cartridge may be fully pressurized at any port without affecting required pilot pressure.
FEATURES:
* Hardened spool and cage for long life.
* Cost-effective cavity.
SPECIFICATIONS:
Working Pressure: 240 bar (3500 psi)
Proof Pressure: 280 bar (4000 psi)
Flow Rating: 113.6 L/min (30 gpm)
Max. Internal Leakage: 164 ml/min (10 in³/min ) at 240 bar (3500 psi)
Spool Displacement required pressure: 7.6 bar (110 psi)
Spool Fully Reversed required pressure: 9.1 bar (132 psi)
Temperature: - 30 ℃~ + 100
Fluids: Mineral based or synthetic hydraulic fluid with lubricating properties with viscosity of 7.4 to 420 cSt
Cavity: VC12-4
PERFORMANCE:
DIMENSIONS:
ORDER CODE:
AAK Hydraulic Valve is a top manufacturer for Hydraulic Cartridge Directional Control Valves in Ningbo China since 2009.
We guarantee quality for 3 years for non-standard customized valves: No leakage, No Noise, No Vibration.
Contact us to customize your valves and promote your business with our premium quality!
