1UPS100-P-20-S-XXX

The 1UPS100-P-20-S-XXX valve belongs to the Sequence and Unloading Valves series produced by Vickers. It is configured as a kick-down sequence unit that directs hydraulic flow to secondary circuits only after a preset pilot signal, supporting staged actuation in automated manifolds. External adjustment lets technicians fine-tune the opening threshold without dismantling the manifold, and an internal pilot senses upstream pressure to trigger the sequence event. Three service ports provide separate connections for inlet, outlet, and pilot lines so system designers can route oil efficiently. When open, the cartridge passes up to 150 l/min (40 US gpm), supplying ample flow for medium-size cylinders. The assembly withstands continuous service at 350 bar (5000 psi) to match high-pressure industrial power units.

The cartridge mounts in an A880 cavity with a 1-14 UNS thread, letting it drop into standard SAE blocks and screw securely with 60 Nm (44 ft-lb) of torque for leak-free seating. An external drain port returns pilot oil directly to tank, preventing pressure buildup that could delay reseating after the sequence cycle. Minimum working pressure is 10 bar, so the valve stays closed under low standby conditions and opens only when commanded. Buna-N seals resist petroleum-based fluids common in factory power packs, and the 0.17 kg (0.37 lb) mass keeps manifold weight low for compact machines. Together these features support predictable unloading and provide a simple means to coordinate multiple hydraulic functions within automated equipment.