PV2R31 High‑Pressure Low‑Noise Vane Pump
Product Overview
PV2R31 High‑Pressure Low‑Noise Vane Pump is a fixed‑displacement double Hydraulic Vane pump. This compact and high‑efficiency hydraulic pump adopts PV2R3 large‑displacement section combined with PV2R1 small‑displacement section, delivering two independent flow outputs for high‑pressure industrial hydraulic system and multi‑action hydraulic‑driven Machine.
This double Hydraulic Vane pump applies advanced balanced vane and optimized stator curve design to realize low‑noise and low‑pulsation performance. Two separate pumping chambers can supply hydraulic oil for different circuits within one hydraulic system simultaneously. It supports interchangeable PV2R3 and PV2R1 cartridge kits for convenient on‑site maintenance without complete pump disassembly. Widely used for injection molding machines, hydraulic presses and automated production equipment, it serves as stable power source for industrial Machine.
Technical Specifications
‑ Model: PV2R31 High‑Pressure Low‑Noise Vane Pump
‑ Product Type: Fixed‑displacement double Hydraulic Vane pump, high‑pressure low‑noise hydraulic pump
‑ Structure: PV2R3 + PV2R1 double pump combination
‑ Displacement: Multiple displacement combinations available for front and rear pump sections
‑ Continuous rated pressure: Up to 21 MPa
‑ Maximum rotating speed: 1800 rpm
‑ Mounting: Standard flange mounting
‑ Shaft: Standard keyed drive shaft
‑ Rotation direction: Clockwise as standard, counter‑clockwise optional
‑ Maintainable parts: Interchangeable PV2R3 & PV2R1 cartridge kit
‑ Working medium: Anti‑wear hydraulic mineral oil for industrial hydraulic system, ISO‑VG32 / VG46 recommended
‑ Operating oil temperature: ‑20℃ ~ +80℃
‑ Key Features: Balanced low‑noise vane design, dual independent flow output, compact structure, small pressure pulsation, high volumetric efficiency, modular cartridge maintenance, stable continuous performance for medium‑heavy‑duty industrial Machine
Working Principle
As a dual‑unit Hydraulic Vane pump, this hydraulic pump integrates two independent pumping assemblies inside one pump housing and driven by a common shaft. Driven by input shaft, rotors and vanes rotate inside respective cam rings. Centrifugal force pushes vanes tightly against inner surface of cam rings. Periodic volume variation completes oil suction and high‑pressure oil delivery, providing two separate pressure flows for the whole hydraulic system. The balanced‑vane structure offsets radial hydraulic force, effectively reducing vibration and noise during long‑time running of the Machine.
When vanes, cam ring or side plates suffer wear, the hydraulic pump will produce internal leakage, pressure drop, insufficient flow and abnormal noise. Replacing matched PV2R series cartridge kits can rapidly restore full working performance of your hydraulic system.
Core Advantages
1. Optimized balanced vane structure, excellent low‑noise performance, well‑suited for noise‑sensitive production environment of industrial Machine.
2. Dual independent flow output with large‑small displacement matching, supplies oil for two separate hydraulic circuits at the same time and simplifies layout of complex hydraulic system.
3. Modular cartridge‑in‑housing design, supports quick field overhaul. There is no need to remove the whole hydraulic pump from the Machine, greatly shortening downtime of hydraulic system.
4. Standard mounting and port dimensions, good interchangeability for original replacement and existing hydraulic system retrofitting.
5. Compact double‑pump layout, saves installation space while maintaining high volumetric efficiency under long‑term high‑pressure continuous operation.
Application Range
PV2R31 high‑pressure low‑noise double Hydraulic Vane pump is a practical dual‑flow power‑supply hydraulic pump for industrial hydraulic system. Widely applied in injection‑molding machinery, hydraulic presses, machine tools, packaging equipment and other hydraulic‑driven industrial Machine. Popular among hydraulic repair workshops, equipment integrators and global spare‑parts distributors.
