Danfoss PVE ‘E’ Series Piston Pumps
Vickers PVE ‘E’ Series pumps are in-line, variable displacement axial piston pumps available in three displacement sizes: PVE012, PVE19 and PVE21. Pump displacement is varied by pressure and/or flow compensator controls, with an assortment of optional controls offering flexibility for different applications. PVE pumps are produced in North America and are also positioned as a genuine OEM replacement option for restoring original machine performance, with an industrial control option offering a standard D03 interface.
PVE19 and PVE21 share a common frame size and support a thru-drive option, allowing a second pump to be mounted from the same shaft; PVE012 is a smaller, standalone unit without thru-drive capability. Maximum operating speed, pressure and torque all vary by model; see Displacement, Speed and Pressure by Model below rather than relying on a single headline figure.
A choice of pressure compensator, load-sensing, remotely adjustable or unloading valve controls allows the pump’s output to be matched to the application; see Control Options below. Standard hydraulic fluids are supported, along with water glycol, phosphate ester and polyol ester fire-resistant fluids on PVE012 and PVE19, subject to reduced pressure, speed and temperature limits.
Key Specifications
| Specification | Detail |
| Technology | Axial piston, in-line, variable displacement |
| Models | PVE012, PVE19, PVE21 |
| Displacement | 25 to 45 cm³/rev (1.54 to 2.75 in³/rev); see Displacement, Speed and Pressure by Model below |
| Rated input speed | 2400 to 3000 rev/min depending on model; see Displacement, Speed and Pressure by Model below |
| Maximum pressure | 186 to 210 bar (2700 to 3000 psi) depending on model; see Displacement, Speed and Pressure by Model below |
| Inlet pressure range | 0.2 to 2.0 bar (5 in. Hg vacuum to 30 psi) |
| Drain pressure (maximum) | 0.35 bar (5 psig); integral relief valve limits case pressure peaks to 0.7 bar (10 psi) above inlet pressure |
| Thru-drive | Available on PVE19/21 only, in SAE A or SAE B options; not available on PVE012 |
| Mounting | Horizontal mounting recommended |
| Fluid cleanliness | ISO 4406 21/18/13 or better |
| Hydraulic fluid | Anti-wear hydraulic oil, or automotive crankcase oil grade SC, SD, SE or SF to SAE J183 FEB80; viscosity grade to achieve 16 to 40 cSt in the optimum performance range |
| Fire-resistant fluids | Water glycol, phosphate ester or polyol ester usable on PVE012 and PVE19, subject to reduced pressure (140 bar / 2000 psi maximum), speed (1800 rev/min maximum) and system temperature (54°C / 130°F maximum); see review note regarding PVE21 |
Displacement, Speed and Pressure by Model
| Model | Displacement cm³/rev (in³/rev) | Rated input speed (rev/min, at 0 psig inlet) | Maximum pressure, bar (psi) |
| PVE012 | 25 (1.54) | 3000 | 210 (3000) |
| PVE19 | 41 (2.50) | 2400 | 210 (3000) |
| PVE21 | 45 (2.75) | 2400 | 186 (2700) |
Shaft Torque by Model
| Model | Input shaft | Thru-drive option | Max. input torque, Nm (lb.in.) |
| PVE012 | 01 – SAE B straight keyed | No | 135 (1200) |
| PVE012 | 05 – SAE B spline, 13T 16/32 DP | No | 208 (1850) |
| PVE19/21 | 01 – SAE B straight keyed | No | 135 (1200) |
| PVE19/21 | 05 – SAE B spline, 13T 16/32 DP | Yes | 208 (1850) |
| PVE19/21 | 02 – SAE BB straight keyed | Yes | 215 (1900) |
| PVE19/21 | 08 – SAE BB spline, 15T 16/32 DP | Yes | 337 (2987) |
Control Options
The following control options are available on the PVE series.
A – Pressure compensator
Standard control. Automatically varies pump displacement to meet system flow demand at a constant system pressure. Displacement reduces to zero within 14 bar (200 psi) of the compensator setting, minimising power draw-off so that system relief valves should not be required. A version with an independent screw adjustment for maximum displacement, from 100% down to 25%, is also available.
B – Load sensing compensator with pressure limiter
Provides load-sensing control under all pressure conditions up to a desired maximum, automatically adjusting pump flow in response to a remote pressure signal and maintaining outlet pressure at approximately 11 bar (160 psi) above load pressure. An integral pressure limiter overrides load sensing as the preset maximum pressure is approached, with override beginning within 14 bar (200 psi) of that setting. A 24 bar load-sensing option is also available.
D / J – Remote adjustment compensator
As the A (pressure compensator) option, except the compensator setting can be changed remotely via a pilot relief valve.
E – Unloading valve (accumulator circuits, PVE19/21 only)
The pump unloads to a no-flow, low-pressure standby condition (approximately 14 bar / 200 psi) at a preset pressure, and returns to full flow once system pressure drops to approximately 85% of that setting. Adjustment range is 100 to 210 bar (1500 to 3000 psi) for PVE19, or 100 to 186 bar (1500 to 2700 psi) for PVE21. A separate check valve is required to maintain the accumulator charge.
Adjustable maximum displacement stop
Available on any control type. An independent screw adjustment allows maximum pump delivery to be set externally between 25% and 100% (not recommended below 50% on PVE19/21). A minimum of 40% is recommended to assist priming.
Typical Applications
Sourced from Danfoss’s PVH/PVE product family page:
- Agriculture: harvesters, sprayers
- Construction: backhoe and wheel loaders, concrete pumps
- Industrial: marine and offshore, presses and extruders
- Specialty: refuse trucks, airport ground support
Downloads
The following manuals are available from Danfoss for service and maintenance reference:
Contact Us for further technical details and configuration options.