Product Overview
The PVM098ER09GS2C315200000AB is the 98 cc-class core model within the Vickers by Danfoss (formerly Eaton Vickers) PVM series of open-circuit swashplate axial piston variable displacement pumps. The PVM series is specifically designed for medium to high-pressure industrial hydraulic systems, with displacements ranging from 18 to 141 cm³/rev, continuous working pressures of 280 bar (315 bar for certain specifications), and peak pressure of 350 bar, renowned for low noise, high power density, and long service life.
About Vickers and the PVM Series: Vickers was established over a century ago and has deep technical heritage in hydraulics, pioneering innovations such as the balanced vane pump and high-pressure systems. Vickers subsequently became part of Eaton Hydraulics, and following Eaton’s hydraulics business acquisition by Danfoss, it now operates under the “Vickers by Danfoss” brand, consolidating Eaton and Danfoss hydraulic technology resources. The PVM series is Vickers’ flagship product platform for open-circuit medium-pressure piston pumps, widely used in injection molding machines, die-casting machines, metallurgical equipment, machine tools, and construction machinery.
Model Code Breakdown (for procurement and engineering reference):
Using PVM098 ER09 GS2C 315 200000 AB as example:
PVM098: PVM series, nominal size 098, geometric displacement 98.3 cm³/rev
ER09: Control type code. E = Pressure Compensator control; R = rotation direction code (right-hand/clockwise); 09 = control variant number
GS2C: Mounting flange and port configuration code. G = mounting flange code (SAE C two-bolt); S2 = port location code (side ports); C = shaft code
315: Pressure setting, 315 bar
200000: Factory calibration and design variant code
AB: NBR (nitrile rubber) seal material, suitable for mineral oil-based hydraulic fluids
Drop-in Replacement Advantage: Manufactured to exact Vickers by Danfoss OEM specifications, this pump achieves complete drop-in interchangeability with the original PVM series for SAE J744 mounting flange, shaft dimensions, port layout, and pressure compensator control interface. Every pump undergoes 100% simulated load testing prior to shipment, validating 315 bar pressure loading, pressure compensator response, and volumetric efficiency under conditions replicating real-world duty cycles.
Technical Specifications
Model PVM098ER09GS2C315200000AB:
Model Code: PVM098ER09GS2C315200000AB
Series: Vickers PVM Series (Open Circuit, Swashplate Design)
Nominal Size: PVM098
Geometric Displacement: 98.3 cm³/rev (6.00 in³/rev)
Continuous Working Pressure: 280 bar (4000 psi)
Intermittent Pressure: 320 bar (4600 psi) for less than 10% duty cycle
Peak Pressure: 350 bar (5000 psi) for less than 0.5 seconds
Maximum Speed: 2400 rpm (flange port configuration)
Maximum Flow (280 bar, 2200 rpm): 200 L/min (53 USgpm)
Maximum Power: 123.7 kW
Maximum Torque (280 bar): 434 N·m
Control Type: ER09 — Pressure Compensator Control
Pressure Compensator Adjustment Range: 130–315 bar
Rotation: Right-hand (clockwise, viewed from shaft end)
Mounting Flange: SAE J744 SAE C two-bolt flange
Shaft: SAE C straight keyed
Port Location: Side ports
Housing Material: High-strength cast iron
Seal Material: NBR (nitrile rubber), suitable for mineral oil-based hydraulic fluid
Fluid Cleanliness: ISO 4406 18/15 or better
Weight: Approx. 55 kg
Through Drive Capability: Supports through drive, can mount subsequent pumps of same size
PVM Series Displacement Size Reference:
PVM018: 18.0 cm³/rev (1.10 in³/rev), continuous 280 bar, max speed 2800 rpm, max flow 46 L/min, weight approx. 15 kg
PVM020: 20.1 cm³/rev (1.22 in³/rev), continuous 230 bar, max speed 2800 rpm, max flow 53 L/min, weight approx. 15 kg
PVM045: 45.1 cm³/rev (2.75 in³/rev), continuous 280 bar, max speed 2600 rpm, max flow 115 L/min, weight approx. 24 kg
PVM050: 50.0 cm³/rev (3.05 in³/rev), continuous 230 bar, max speed 2600 rpm, max flow 125 L/min, weight approx. 24 kg
PVM057: 57.4 cm³/rev (3.50 in³/rev), continuous 280 bar, max speed 2500 rpm, max flow 140 L/min, weight approx. 36 kg
PVM063: 63.1 cm³/rev (3.85 in³/rev), continuous 230 bar, max speed 2500 rpm, max flow 150 L/min
PVM074: 73.7 cm³/rev (4.50 in³/rev), continuous 280 bar, max speed 2400 rpm, max flow 163 L/min
PVM081: 81.0 cm³/rev (4.94 in³/rev), continuous 230 bar, max speed 2400 rpm, max flow 181 L/min
PVM098: 98.3 cm³/rev (6.00 in³/rev), continuous 280 bar, max speed 2200 rpm, max flow 200 L/min
PVM106: 106.5 cm³/rev (6.50 in³/rev), continuous 230 bar, max speed 2200 rpm, max flow 222 L/min
PVM131: 131.1 cm³/rev (8.00 in³/rev), continuous 280 bar, max speed 2000 rpm, max flow 233 L/min
PVM141: 141.0 cm³/rev (8.60 in³/rev), continuous 230 bar, max speed 2000 rpm, max flow 258 L/min
Key Technical Advantages
1. Saddle-Type Swashplate Design with Low Noise Operation
The PVM series employs a saddle-type swashplate design combined with a steel-backed polymer bearing, achieving uniform bearing load distribution and effectively reducing structural vibration and fluid-borne noise. The unique tapered design further reduces vibration sources, positioning the PVM series at the forefront of noise control among comparable products. The PVM074 achieves a noise level of only 64 decibels, providing a quieter working environment for operators.
2. Pressure Compensator Control with Constant Pressure Output
The PVM098ER09GS2C315200000AB is equipped with ER09 pressure compensator control. When system pressure reaches the setpoint, the compensator automatically reduces pump displacement, maintaining only leakage compensation flow to keep system pressure constant. The pressure adjustment range is 130–315 bar, precisely settable via the adjustment screw. The pressure compensator response time is optimized, with the PVM098 achieving an on-stroke response time of 85 milliseconds and an off-stroke response time of 24 milliseconds, ensuring fast and stable system pressure control.
3. High-Strength Cast-Iron Housing with Compact Lightweight Design
The pump body is precision-cast from high-strength cast iron, with the material’s damping characteristics effectively suppressing structural vibration and fluid-borne noise. The PVM series is renowned for its compact lightweight design. The PVM098 achieves 98.3 cm³/rev with a weight of only approximately 55 kg, leading its displacement class in power density. The compact axial dimensions make the PVM series particularly suitable for space-constrained industrial hydraulic applications.
4. Long-Life Bearing System with 30,000-Hour Design Life
The PVM series employs a long-life bearing system with a design life of up to 30,000 hours at 65% rated pressure. Bearings are selected through system-level load analysis for long-term stable operation at 280 bar continuous pressure and high speeds. The steel-backed polymer bearing saddle swashplate design ensures uniform bearing load distribution, significantly extending maintenance intervals and service life.
5. Flexible Control Options with Wide Hydraulic Fluid Compatibility
The PVM series offers multiple control options: pressure compensator (PC), load sensing (LS), flow control (FC), horsepower/torque limiting, proportional electrohydraulic (EP), remote control, dual displacement control, and more, customizable for different application requirements. Hydraulic fluid compatibility includes petroleum-based, synthetic, and water-glycol fluids, suitable for diverse industrial hydraulic applications.
6. Through Drive and Modular System Expansion
The PVM series supports through drive, allowing direct mounting of same-size subsequent pumps on the rear of the main pump for single-motor multi-pump compound hydraulic systems. Modular control designs enable field conversion and upgrade, with standardized mounting interfaces requiring no adaptation for replacement, significantly reducing equipment downtime.
Application Areas
Plastic Injection Molding Machines: Clamp and injection hydraulic systems (one of the core application areas for the PVM series)
Metal Forming Equipment: Die-casting machines, stamping presses, bending machine hydraulic power sources
Machine Tools: CNC machine hydraulic systems, hydraulic fixtures, metal cutting equipment
Mining Machinery: Mine hoist hydraulic systems, crusher hydraulic drives
Metallurgical Equipment: Continuous casting machine hydraulic systems, rolling mill hydraulic power sources
Oil & Gas Equipment: Oil rig auxiliary hydraulic systems, pipeline valve hydraulic actuators
Conveyor Equipment: Hydraulic conveyor drive circuits, automated production line hydraulic systems
General Industrial Hydraulic Power Units: Small to medium hydraulic power units, central oil supply systems
Expert Maintenance Tips
1. Hydraulic Fluid Cleanliness
The PVM series pressure compensator spool operates with extremely tight clearances and is highly sensitive to particulate contamination. System fluid cleanliness must meet ISO 4406 18/15 or better. Install a 10 μm absolute-rated filter element at the pump inlet. Replace elements at 500 hours after first commissioning, then every 1,000 operating hours or 6 months, whichever comes first.
2. Pressure Compensator Setting and Adjustment
The PVM098ER09GS2C315200000AB pressure compensator adjustment range is 130–315 bar. Set the pressure 15–20 bar above the maximum working load pressure, never exceeding the 280 bar continuous working pressure. Adjust only with the system at zero load. Rotate the adjustment screw slowly and verify stable pressure gauge readings before proceeding. The pressure compensator is not a safeguard against pressure overload — a pressure relief valve must be installed in the system.
3. Case Drain Line Requirements
The case drain line must return directly to the reservoir. Maximum permissible back pressure is 2 bar (0.2 MPa). The drain outlet must terminate below oil level at all times to prevent air ingestion. The drain line diameter must not be smaller than the pump case drain port size. For “shaft-up” vertical mounting positions, filling and air bleeding must be performed completely.
4. Pre-Start Priming and Air Bleeding
Before first start, fill the pump housing with clean hydraulic fluid through the case drain port. After installation, turn the drive shaft by hand several revolutions to confirm free rotation without binding. Position the control at neutral (zero displacement) and run at low speed for 5–10 minutes. Verify continuous bubble-free flow from the case drain. Only then apply load.
5. Shaft and Coupling Maintenance
The PVM098 uses a SAE C straight keyed shaft. Ensure drive shaft alignment during installation, employing a flexible coupling. Apply appropriate grease to the keyed connection to prevent fretting wear. Inspect coupling alignment and shaft wear at 500 hours after first commissioning, then recheck every 2,000 operating hours.
