Vickers | PVH74CRF2S10C25VB31
PVH74CRF2S10C25VB31
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The PVH74CRF2S10C25VB31 piston pump belongs to the PVH and PVE Open-Circuit Piston Pumps series manufactured by Vickers and provides pressurized oil for hydraulic automation circuits. A geometric displacement of 73.7 cm³ per revolution defines the fluid volume moved each shaft turn, and at 2200 rpm the pump supplies 136 L/min (36 gpm) to meet medium-duty flow demands. Right-hand rotation lets it couple directly to prime movers that turn clockwise. Installation is simplified by an SAE C 4-bolt mounting flange specified as J744-127-4, while drive torque is transferred through an SAE C splined 14-tooth 12/24 DP shaft that matches common power-train components. Fluid enters and exits through SAE 4-bolt flange ports sized for high-flow lines, and a single one-way shaft seal prevents external leakage while blocking air ingress during suction.
Pressure management is handled by a pressure-compensator control that automatically reduces swashplate angle when system requirements are met. The compensator is preset to 250 bar (3625 psi), and the casing is rated for the same 250 bar maximum to keep operation within structural limits. A 20 bar (290 psi) load-sensing differential maintains responsive actuator motion while conserving energy under partial load. A 0.15 in-diameter bleed-down orifice accelerates pressure decay after the compensator shifts, limiting overshoot during rapid unloading. Together these features allow the pump to match output to demand, contain heat generation, and maintain stable pressure without external valving.
Technical Specifications
Bleed-down Orifice
0.15 in Diameter
Compensator Setting
250 bar (3625 psi)
Control Type
Pressure Compensator (C)
Geometric Displacement
73.7 cm³/rev
Input Shaft
SAE C Splined 14T 12/24 DP (J744-32-4)
Load-sensing Differential
20 bar (290 psi)
Main Ports
SAE 4-Bolt Flange Ports
Maximum Pressure
250 bar (3625 psi)
Mounting Flange
SAE C 4-Bolt (SAE J744-127-4)
Output Flow @ 2200 Rpm
136 L/min (36 gpm)
Rotation
Right-Hand (CW)
Shaft Seal
Single, One-Way
1620 Old Apex Road
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