Quiet operation, high efficiency and compact design — all available at a competitive price. That’s what Oilgear PVWC closed-loop, hydrostatic axial-piston hydraulic pumps bring to the table. All designed around our proven rotating group.
Base Hydraulic Symbol
At A Glance
- Circuit Type: Closed Loop
- Pump Series: PVWC
- Control Response: Medium
- Displacement: Below 50 cc/rev
- Fluid Type: Hydraulic Low-Lubricity
- Max Speed: Above 3000 RPM
- Max Continuous Pressure: 251 Bar - 300 Bar
Product Details
Rugged and tough, the PVWC line offers low horsepower for high-performance applications. These variable-displacement pumps feature with several types of mechanical, hydraulic and electrohydraulic servo valve controls — which permit easy field interchangeability. With three capacities per single frame size, PVWC pumps allow users to select their required level of capacity and pressure while providing maximum control range and sensitivity.
PVWC pumps feature a hardened cylinder surface running on a hardened valve plate. Its pistons run on a hardened swashblock surface. With excellent contamination-resistance properties, PVWC pumps are capable of operating with low-viscosity fluids — including high water content, fire-resistant and other special fluids.
Oilgear makes some of the longest-lasting, most reliable pumps in the world. Learn more about the proprietary design of the Oilgear variable-displacement, axial-piston pump line.
Ready to Order
Oilgear is up to the challenge, regardless of your application. Our wide range of pumps are renowned for their longevity, dependability and durability–no matter the harsh environment. Find out more about all of the pumps we offer and how we can help be the solution for you.
Where To BuyStandard Features
- Sealed front bearing to allow for special fluids and to permit side loading
- Patented pressure lubricated swashblock design
- Special polymerous saddle bearing for long life on special fluids
- Cylinder-mounted polymerous journal bearings for special fluids and infinite bearing life
- Hardened cylinder surface running on hardened valve plate for contamination resistance and special fluids
- Quiet valve plate design
- Steel shoes with specially treated faces for contamination resistance and special fluids
- SAE 2 bolt mounting and ports
- Viton seals
Technical Specifications
NOMINAL DIMENSIONS
Unit |
Length | Width | Height | Weight | |||||
| in. | mm | in. | mm | in. | mm | lbs | kg | ||
| w/Integral charge pump | 9.4 | 238,8 | 5.2 | 132,1 | 5.4 | 137,2 | 38.0 | 17,3 | |
| w/o Integral charge pump | 7.1 | 180,3 | 5.2 | 132,1 | 5.4 | 137,2 | 33.4 | 15,2 | |
NOMINAL OPERATING PARAMETERS
| Theoretical Maximum Displacement | in^3/rev | 0.66 |
| ml/rev | 10,8 | |
| Rated Continuous Pressure | psi | 4000 |
| bar | 275 | |
| Peak Pressure – 10% of duty cycle | psi | 4500 |
| bar | 310 | |
| Peak Pressure | psi | 5000 |
| bar | 350 | |
| Flow Rate at 1800 RPM, rated continuous pressure & 14.7 psi (1.01 bar abs) inlet conditions | gpm | 4.1 |
| l/min | 15,5 | |
| Maximum Speed | rpm | 3600 |
NOMINAL PERFORMANCE
Curves based on an oil temperature of 125º F (160 SSU) and 14.7 psia (1 bar absolute). Efficiency curves are based on pump running at 1800 rpm.
CAD FILES
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Modeled with basic pressure compensation control module.
DOCUMENTATION
