Cartridge valve UPCV10-F41

hydraulicpilotblocking

The UPCV10-F41 is a screw in, cartridge style, internally piloted, pilot unloading valve with an internal check valve with fixed reload pressure ratio of 80% for use in accumulator type hydraulic systems. Operation In its steady state, the UPCV10-F41 blocks flow from port 3 to port 4 and allows flow from port 1 to port 2. On attainment of a predetermined pressure at port 2 and 3, the spool shifts to allow free flow from port 3 to port 4, unloading the port 3 pilot. If pressure at port 2 drops to a level below the ratio established reload value, the valve will close, blocking flow from port 3 to port 4. The spring chamber is vented to port 4. Features Internal check valve Optional fixed reload pressure ratios. Hardened precision spool and cage for long life. Choice of seal options. Fluids: Mineral based or synthetic with lubricating properties Fluid Viscosity Range: 7.4 to 420 cSt Maximum Operating Contamination Level: 18/16/13 per ISO 4406 Unit Weight: 0.28 kg (0.61 lb) Internal Wetted Surface Area: 251 cm² (38.9 in²) Cavity: HVC10-f4 10-size-4-way Cavities Cartridge Installation Torque: 44.7 to 50.2 N-m (33 to 37 ft-lb) Orientation Restriction: None