PV270 Variable Displacement Piston Pump
3 month ago
Product details
1. Product Overview
ThePV270is ahigh-performance axial piston variable displacement pumpfromParker Hannifin’s PVplus series, designed foropen-circuit hydraulic systemsin heavy-duty industrial applications. It is renowned for itshigh efficiency, reliability, and adaptabilityto demanding environments such assteel mills, power plants, ports, mining, and oil drilling.
2. Key Technical Specifications
• Displacement: 270 cm³/rev (270 mL per revolution)
• Rated Pressure: 35 MPa (350 bar)
• Peak Pressure: 42 MPa (420 bar)
• Speed Range:
• Minimum: 300 rpm
• Maximum: 1,800 rpm
• Power Output: Up to298 kW (400 hp)at maximum pressure and speed.
• Weight: Approximately180 kg(including packaging).
• Design:
• Slant-disk axial piston designfor compactness and high efficiency.
• Thru-drive shaftenabling single or multi-pump configurations.
• Rigid pump body with FEM-optimized structurefor reduced noise and vibration.
• Control Options:
• Pressure compensationfor stable flow under varying loads.
• Remote pressure regulationandload-sensing controlfor precision.
• Electronic control (EO)for advanced automation.
3. Structural Features
• High Efficiency:
• Advanced hydraulic design minimizes internal leakage, achievingvolumetric efficiency > 95%.
• Integratedpre-compression volumereduces flow pulsation and noise.
• Durability:
• Made ofhigh-strength materials(e.g., cast iron, alloy steel) to withstand harsh conditions.
• Precision-ground pistons and cylinder blockensure minimal wear and long service life.
• Low Noise & Vibration:
• FEM-optimized shelland9-piston low-pulsation structurekeep noise levels below81 dB(A).
• Resilient mountsandbalanced designreduce vibration.
• Modular Design:
• Supportssingle, tandem, or multi-pump combinationsfor flexible system integration.
• Easy maintenance withreplaceable seals and bearings.
• Advanced Control:
• Large variable control piston with strong reset springenables rapid response to load changes.
• Zero-flow pressure reliefprevents pressure spikes during operation.
4. Performance Advantages
• High Reliability:
• Proven in24/7 continuous operationin industries like steel and mining.
• Robust constructionresists contamination and extreme temperatures.
• Energy Efficiency:
• Variable displacement adjusts flow to demand, reducing energy waste.
• Low internal leakageminimizes heat generation and power loss.
• Precision Control:
• Flow and pressure regulationensure consistent performance in dynamic applications.
• Electronic control (EO)allows integration with PLC systems for automation.
• Long Service Life:
• High-quality bearings and sealsextend component lifespan.
• Easy maintenancereduces downtime and costs.
5. Application Fields
ThePV270is widely used in:
• Metallurgy:
• Steel rolling mills, forging presses, and continuous casting machinesrequire precise pressure and flow control.
• Mining:
• Drilling rigs, excavators, and loadersbenefit from its high power density and durability.
• Ports & Marine:
• Ship deck machinery, cranes, and winchesrely on its compact design and reliability.
• Oil & Gas:
• Drilling pumps and mud pumpsuse its high-pressure capabilities in offshore and onshore operations.
• Power Generation:
• Hydroelectric turbines and thermal power plantsutilize its efficient energy conversion.
• Construction:
• Concrete pumps, pavers, and hydraulic pressesdepend on its stable performance.
6. Installation & Maintenance Guidelines
• Installation:
• Ensure astable mounting baseto avoid vibration.
• Align the pump shaft with the drive motor to prevent misalignment.
• Fill the pump withclean hydraulic oil(e.g., HLP oil per DIN 51524) before initial startup.
• Maintenance:
• Regularly check oil cleanliness(ISO 4406:1999 Class 18/16/13 or better) and replace filters as needed.
• Monitor oil temperature (ideal range:40–60°C) to prevent overheating.
• Inspect seals and connections for leaks periodically.
• Follow manufacturer-recommendedlubrication intervalsfor bearings.
• Troubleshooting:
• Low pressure or flow: Check for air ingress, worn pistons, or clogged filters.
• Excessive noise: Verify oil viscosity, alignment, and component wear.
• Overheating: Ensure proper cooling and check for internal leakage.
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