V10 1S4S 1D20 LH

The V10 1S4S 1D20 LH hydraulic pump belongs to the Square Vane Pumps series and is manufactured by Vickers. It delivers pressurized oil for automated hydraulic circuits in machinery and mobile equipment. Design number 20 marks the specific internal configuration so maintenance staff can match replacement parts accurately. A displacement of 13.1 cm³ per revolution, equivalent to 0.80 in³ per revolution, defines how much fluid is moved each shaft turn and sets basic flow capability. At 1200 rpm and 100 psi the pump produces a rated flow of 4 US gpm, giving engineers a reference point for sizing actuators. The shaft can run safely up to 3400 rpm, permitting higher flow when speed increases. A maximum working pressure of 172 bar (2500 psi) limits system load to prevent seal damage. Counter-clockwise left-hand rotation ensures compatibility with drives that turn the shaft in that direction.

Installation and plumbing options are suited to compact power units. A two-bolt flange mounting pattern secures the housing to standard motor adapters. The inlet port uses a 1.3125-12 UN-2B SAE O-ring thread, providing a leak-resistant suction connection. Discharge oil exits through a 0.750-16 UNF-2B outlet port, and this port sits 90° clockwise from the inlet so line routing can follow a right-angle path. Return oil to the reservoir can be connected to the 0.750-16 UN-2B tank port, keeping case leakage separate from system flow. A 0.187-inch square key that is 1.00 inch long locks the shaft to the prime mover and transmits torque without slip.