SOLENOID PROPORTIONAL VALVE POPPET, 4 PORT, NORMALLY CLOSED U.S. PATENT # 7,921,880
A solenoid-operated, 4 port, normally closed, poppet-type, proportional, screw-in hydraulic cartridge valve, designed for low leakage, blocking and load-holding applications.
Operation
When energized, the poppet lifts to allow flow from port 4 to ports 1, 2 and 3, flow at port 2 and 3 are typical for load sensing applications and includes a check valve for isolation.
Features
Industry-common cavity.
Continuous-duty rated coils.
Reduce manifold space claim.
Efficient wet-armature construction.
Optional waterproof E-Coils rated up to IP69K.
Fluids:
Mineral based or synthetic hydraulic fluid with lubricating properties
Fluid Viscosity Range:
7.4 to 420 cSt
Maximum Operating Contamination Level:
20/18/14 per ISO 4406
Unit Weight:
0.21 kg (0.46 lb)
Internal Wetted Surface Area:
189 cm² (29.3 in²)
Valve Inductance:
173.3 mH At 1.2 A
Cavity:
VC10-4B
10-size-4-way Cavities
Cartridge Installation Torque:
32.5 to 35.3 N-m (24 to 26 ft-lb)
Coil Nut Torque:
6.8 to 9.5 N-m (5 to 7 ft-lb)
Orientation Restriction:
None