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

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