1PUL60P35SV

The 1PUL60P35SV valve is produced by Vickers within the Sequence and Unloading Valves series. It serves as an unloading element in hydraulic automation, diverting pump output back to tank once a preset pressure is reached to reduce energy loss. Hydraulic pilot actuation allows upstream pressure to shift the internal spool, so circuitry can trigger the unloading stage without electrical signals. The spool-type construction provides a balanced movement that resists transient forces and maintains stable flow. The unit is built to operate at up to 350 bar, giving it compatibility with high-pressure mobile or industrial systems. During commissioning, the setting flow of 4.8 l/min establishes the pilot signal level required for the unloading event. The cartridge uses a 1-1/8-12 UNF-2A thread and fits the A12088 cavity, enabling drop-in installation in standardized manifolds with minimal machining.

An external adjustment lets technicians fine-tune the unloading threshold without removing the cartridge, while an external drain prevents back-pressure from influencing the pilot chamber. The rated flow capacity of 60 l/min supports medium-size pumps, ensuring that the valve can pass full system volume once it opens. Proper mounting requires an installation torque of 75 Nm, securing the body and protecting the O-ring interface. Fluid sealing is handled by a Viton elastomer set supplied under seal kit code SK750V, giving compatibility with petroleum-based oils and elevated temperatures. When assembled, the cartridge weighs 0.46 kg, light enough for manifold blocks where space and mass are limited yet robust for continuous duty.