PVM098ER09GS02BYA28000001A0A Vickers Piston Pump 98cc 315bar

Product Overview

The PVM098ER09GS02BYA28000001A0A is a Vickers (now Danfoss) PVM Series open-circuit swashplate-type axial piston variable displacement pump. The PVM Series is Vickers’ classic product line, covering displacements from PVM018 through PVM141, and is widely used in industrial hydraulic systems and power plant EH oil control systems. The PVM098 model delivers a maximum displacement of 98.3 cm³/rev.

This model features SAE C 4-bolt flange mounting with right-hand rotation (clockwise when viewed from the shaft end) . The “09” control code denotes pressure compensator (PC) control, which automatically adjusts output flow in response to system pressure changes to maintain constant pressure. The “GS” port configuration indicates side ported connections. “02B” specifies the SAE straight keyed shaft configuration. “YA28000001A0A” represents the production batch and customization code, denoting specific design revisions and seal configurations.

As a direct OEM-equivalent replacement solution for the Vickers PVM Series, this product offers complete in-situ interchangeability, strictly adhering to Vickers’ original design specifications and mounting interface standards (SAE J744). Every unit undergoes 100% simulated duty-cycle testing, ensuring that key performance metrics—including volumetric efficiency, pressure-flow characteristics, and case drain flow at rated pressure and full displacement—meet or exceed original factory specifications.

Technical Specifications 

• Model Number: PVM098ER09GS02BYA28000001A0A

• Brand Series: Vickers PVM Series

• Pump Type: Swashplate Axial Piston Variable Displacement Pump (Open Circuit)

• Maximum Displacement: 98.3 cm³/rev (6.00 in³/rev)

• Maximum Operating Pressure: 315 bar

• Continuous Operating Pressure: 280 bar (4000 psi)

• Peak Pressure: 350 bar (5000 psi)

• Rated Speed: 1800 rpm

• Maximum Input Speed: 2400 rpm

• Control Type: 09 – Pressure Compensator (PC)

• Rotation Direction: R – Right-hand (clockwise from shaft end)

• Mounting Type: SAE C 4-Bolt Flange (SAE J744-127-4)

• Shaft Type: Straight Keyed

• Port Configuration: GS – Side Ported

• Port Sizes: Suction SAE J744-32-1, Pressure SAE J744-32-1

• Noise Level: 64 dB

• Bearing Life (at Rated Pressure): 8000 hours

• Maximum Case Pressure: 350 bar

• Compensator Adjustment Range: 580–1885 psi

• Recommended Filtration: ISO 18/13

• Housing Material: Cast Iron

• End Cover Material: Ductile Iron

• Seal Material: Phosphate Ester-resistant FKM (Fluororubber)

• Weight: Approx. 55 kg

• Hydraulic Fluid: Mineral Oil / Phosphate Ester Fire-Resistant Fluid

Key Technical Advantages

1. Pressure-Compensated (Constant Pressure) Control for Stable System Pressure
The “09” control configuration features pressure-compensated variable control as standard, automatically adjusting the swashplate angle in response to system pressure changes to modulate output flow. When system pressure reaches the compensator set point, the pump automatically reduces displacement to maintain constant pressure. The compensator adjustment range covers 580–1885 psi, accommodating various system pressure requirements. This control approach is particularly critical in power plant EH oil systems—the PVM098ER09GS02BYA28000001A0A has been proven in 300MW–660MW units, maintaining EH oil system pressure stable at 14±0.5 MPa.

2. Exceptional Low-Noise Design for Improved Working Conditions
The PVM Series pumps excel in noise control, achieving a noise level of just 64 dB—representing a noise reduction of over 50% compared to同类 products. This low-noise design not only improves operator working conditions but also reduces environmental noise pollution, making it particularly suitable for industrial and power facilities with stringent noise emission requirements.

3. High Pressure Ratings & Long-Life Bearings for Long-Term Reliability
The PVM098 delivers a continuous operating pressure of 280 bar (4000 psi) with peak pressures up to 350 bar (5000 psi) . Under rated pressure conditions, bearing life reaches 8000 hours. The combination of high-strength cast iron housing and ductile iron end cover, together with rigorously proven rotating groups, ensures long-term reliability under continuous high-load operation.

4. Excellent Fluid Compatibility & Seal Reliability
The PVM098ER09GS02BYA28000001A0A features phosphate ester-resistant FKM (fluororubber) seals, providing compatibility with both mineral hydraulic oils and phosphate ester fire-resistant fluids. This characteristic makes it the ideal choice for power plant EH oil control systems—EH systems universally use phosphate ester fire-resistant fluids, which普通 seal materials cannot withstand. FKM seals ensure long-term leak-free operation under high-temperature, high-pressure, and fire-resistant fluid conditions.

5. Flexible Mounting Configuration & Global Interchangeability
The SAE C 4-bolt flange mounting (SAE J744-127-4) with straight keyed shaft configuration ensures compatibility with major global hydraulic systems. The PVM Series complies with SAE and ISO international standards, offering excellent interchangeability in the global market.

Application Areas

• Power Plant EH Oil Control Systems (Primary Application): Main pump for turbine digital electro-hydraulic control (DEH) systems in 300MW–660MW units, providing stable high-pressure oil supply

• Injection Molding Machines: Replaces fixed-displacement pumps for variable flow control in injection and clamping operations, delivering significant energy savings

• Metal Forming Equipment: Metal forming machines and metal cutting equipment

• Mining Machinery: Hydraulic systems for mining equipment

• Oil & Gas Equipment: Hydraulic power units for oil and gas industry applications

• Conveyor Lines & Material Handling Equipment

Expert Maintenance Tips

1. Model Confirmation & Pre-Installation Inspection: Prior to installation, confirm the complete model code as PVM098ER09GS02BYA28000001A0A. This model features SAE C 4-bolt flange mounting (SAE J744-127-4) with a straight keyed shaft. Ensure alignment between the pump and drive mechanism meets SAE mounting standards to prevent premature bearing wear due to misalignment. Manually rotate the shaft before installation to confirm smooth, obstruction-free rotation.

2. Fluid Cleanliness & Temperature Control: The PVM Series recommends a filtration rating of ISO 18/13. For EH oil system applications, pre-commissioning fluid acid value should be < 0.15 mgKOH/g, moisture < 1000 ppm, and particulate cleanliness NAS ≤6. Fluid temperature must exceed 20°C (32°C recommended)—low viscosity at low temperatures can加剧 pump wear or cause cavitation. If fluid temperature is low, activate the heater first.

3. Valve Position Verification: Verify that all inlet, outlet, and drain valves for both main and standby pumps are fully open—this is a root cause of many on-site failures! Cases have been documented where closed drain valves caused pump housing damage due to pressure trapping. Also confirm that the high-pressure accumulator inlet valve is open and the return valve is closed.

4. Initial Start-Up & Pressure Validation: Before first start-up, pre-lubricate the pump by filling the housing with clean hydraulic fluid through the case drain port. Perform a brief jog start (5–10 seconds) to check for abnormal noise, leakage, or excessive vibration. Then正式 start the pump and monitor discharge pressure stability at 14±0.5 MPa (for EH oil system applications), with no relief valve actuation and normal filter differential pressure (high-pressure filter ΔP < 0.3 MPa). Also verify standby pump interlock logic.

5. Scheduled Maintenance & Filter Replacement: Follow the maintenance intervals specified in the Vickers PVM Series service manual. Pay particular attention to filter condition, fluid cleanliness, and seal integrity during routine inspections. Regular hydraulic fluid and filter replacement is essential for long-term reliable pump operation.