Oilgear PVWH-04 Axial Piston Hydraulic Pump
Oilgear PVWH-04 Axial Piston Hydraulic Pump
Rexton Hydraulic supplies the Oilgear PVWH-04 axial piston pump — 11 cc/rev displacement, 345 bar pressure rating, and compact design suited for light-to-medium hydraulic systems that requires steady and efficient flow.
- Series: PVWH Legacy Pumps
- Displacement 11 – 130 cc/rev
- Nominal Pressure 103 Bar
- Maximum Pressure 345 Bar
- Maximum Speed 2100 – 3600 RPM
- Axial Piston Pump
- Open Circuit Pump
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The Oilgear PVWH-04 Axial Piston Hydraulic Pump is a compact and efficient fixed-displacement pump design for use in hydraulic systems where reliable performance in a small package is required. The displacement of this model is 11 cc/rev, ensuring a continuous hydraulic flow. It is thus perfect for both industrial and mobile applications where space is limited and efficiency and dependability are called for.
The PVWH-04 is designed for open-loop hydraulic circuits and provides an optimal balance between durability and smooth operation. Continuous operating pressures of up to 345 bar allow this pump to provide reliable operation in light- to medium-duty systems requiring stable pressure over long working hours. Its capability for operation at speeds as high as 3600 RPM gives flexibility to the engineers and system designers in providing a responsive pump that adapts easily to various duty cycles.
With an internal design focus on long service life and stable hydraulic behavior, the PVWH-04 stands out. Precision-machined components, hardened wear surfaces, and a well-balanced piston arrangement are used by Oilgear to keep internal friction low and efficiency higher. The pump handles modern hydraulic fluids with aplomb, including those of lower viscosity or which are water-based in nature, making it suitable for systems where fluid choice may vary or where environmental or safety requirements demand alternative hydraulic oils.
One of the major strengths of PVWH-04 is its compact structure. It was designed to fit well in compact machinery, tight layouts, auxiliary hydraulic circuits, compact mobile equipment, clamping units, and small industrial machines. Despite the small size, it provides consistent hydraulic performance and has maintained a very reliable flow throughout its operating range. This quality has made it popular in systems requiring a hydraulic pump that is small, efficient, and low-maintenance.
Due to its membership in the Oilgear PVWH legacy series, this pump has become synonymous with simplicity, ruggedness, and predictable behavior. By design, the fixed-displacement characteristic guarantees repeatable performance, easy integration, and minimum control complication. Installed in either stand-alone circuits or as part of larger hydraulic systems, it is reliable under frequent cycling or long working cycles.
Technical Specifications
PVG FAMILY SPECIFICATIONS
| FRAME SIZE MODEL | B-FRAME | C-FRAME | D-FRAME | ||||||
| PVG-048 | PVG-065 | PVG-075 | PVG-100 | PVG-130 | PVG-150 | PVG-180 | |||
| DRIVE | Maximum (RPM) | 2700 | 2700 | 2700 | 2400 | 2400 | 2400 | 2400 | |
| Minimum (RPM) | 600 | 600 | 600 | 600 | 600 | 600 | 600 | ||
| Torque to turn shaft (ft. lbs.) | 9 | 9 | 9 | 24 | 24 | 40 | 50 | ||
| Rotational Moment of Inertia (lbs.-in2) | 21 | 21 | 21 | 50 | 47 | 150 | 152 | ||
| OUTPUT1 | Pressure (PSIA) | Peak | 5800 | 5800 | 4250 | 5800 | 4250 | 5800 | 5800 |
| Continuous | 5000 | 5000 | 3750 | 5000 | 3750 | 5000 | 5000 | ||
| Minimum | 100 | 100 | 100 | 100 | 100 | 100 | 100 | ||
| Nominal Volume (GPM) at 1800 RPM and Rated Pressure For Full Displacement | 21.1 | 28.8 | 33.3 | 42.4 | 57.6 | 63.0 | 78.0 | ||
| CASE2 | Maximum Pressure (PSI) w/ Standard Shaft Seal | 25 | 25 | 25 | 25 | 25 | 25 | 25 | |
| Minimum Drain Line Hose Size | #16 SAE | #16 SAE | #16 SAE | #16 SAE | #16 SAE | #16 SAE | #16 SAE | ||
| CONTROLS3 | Minimum Pressure (PSI) | Pressure Controls – Minimum Compensator Setting | 200 | 200 | 200 | 200 | 200 | 250 | 250 |
| Volume Controls (VS, VM) – Minimum Pilot Pressure | 500 | 500 | 500 | 500 | 500 | 500 | 800 | ||
| Maximum Pilot Pressure (PSI) | Volume Control – VS | 600 | 600 | 600 | 600 | 600 | 600 | N/A | |
| Volume Control – VM | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | ||
| Stroking Rate (MSEC) at Rated Pressure, Pressure Controls (Minimum) | On Stroke | 40 | 40 | 40 | 40 | 40 | 45 | 45 | |
| Off Stroke | 50 | 50 | 50 | 50 | 50 | 60 | 60 | ||
| Volume Controls (VS, VM) | On Stroke | 250 | 250 | 250 | 250 | 250 | 250 | 250 | |
| Off Stroke | 250 | 250 | 250 | 250 | 250 | 250 | 250 | ||
| FLUID4 | Viscosity (SSU) | Minimum | 65 | 65 | 65 | 65 | 65 | 65 | 65 |
| Maximum | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | ||
| TEMPERATURE5 | Fluid Operating Range (F˜) | 14 to 190 | 14 to 190 | 14 to 190 | 14 to 190 | 14 to 190 | 14 to 190 | 14 to 190 | |
| Fluid Minimum Starting (F˜) | -40 | -40 | -40 | -40 | -40 | -40 | -40 | ||
| Fluid Maximum at Case Drain Port (F˜) | 230 | 230 | 230 | 230 | 230 | 230 | 230 | ||




