PSV40/BOSCH G 6974103 64

The PSV40/BOSCH G 6974103 64 pump belongs to the PSV Variable Vane Pumps series manufactured by Bosch Rexroth for hydraulic automation where adjustable flow and reduced noise are required. This unit employs a variable volume silent vane element so the displacement can be trimmed during operation to match system demand while keeping acoustic emissions low. A wet coupling design immerses the drive coupling in hydraulic fluid, which minimizes mechanical wear and simplifies cooling at the power end. At a shaft speed of 1750 rpm the pump delivers 30 gallons per minute, providing adequate flow for medium-size hydraulic actuators and circuit loops. The pressure envelope is capped at 2000 psi, allowing the pump to operate safely in industrial machinery that relies on moderate working pressures.

For installation, the pump is flange mounted, enabling direct attachment to motor faces and maintaining alignment without additional brackets. This arrangement speeds replacement during maintenance because the unit can slide off the motor without disturbing the pipework. Both suction and discharge lines connect through a 4-bolt flange port, giving a rigid interface that resists loosening under pulsating loads. The port centerlines are offset by 0.375 inches, a dimension that assists designers in routing parallel piping runs without interference. A pressure compensator is supplied as the standard control, so the pump automatically reduces displacement once the set pressure is reached and prevents excess energy consumption when flow demand falls.