Parker PGP Series High-Pressure Industrial Gear Pumps
Parker PGP Series External Gear High-Pressure Industrial Gear Pumps
The Parker PGP series is a high-pressure external gear industrial gear pump under the Denison brand, featuring a robust external gear structure and excellent high-pressure bearing capacity. It is specially designed for industrial hydraulic systems that require stable, reliable and continuous power output, with the advantages of simple structure, strong durability, low maintenance cost and wide applicability, and is widely used in various industrial fields that demand high-pressure hydraulic power.
I. Core Product Features
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Features
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Advantage Description
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High-Pressure Bearing Capacity
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Adopts reinforced gear and pump body structure, continuous working pressure up to 250-350 bar, intermittent pressure up to 380 bar, suitable for high-pressure industrial working conditions
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Stable Output Performance
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Precision-machined external gear pair ensures uniform flow output, small pressure and flow pulsation, and stable operation even under long-term high-load conditions
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Robust & Durable
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Gear and pump core are made of high-strength alloy materials, with strong wear resistance and impact resistance, and long service life in harsh industrial environments
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Simple Structure & Easy Maintenance
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Integrated external gear design, few wearing parts, convenient disassembly and assembly, low maintenance cost, and easy on-site maintenance
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Wide Displacement Range
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Covers a variety of displacement specifications, which can be flexibly selected according to system flow requirements, and supports single, double and multiple pump combinations
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Strong Contamination Resistance
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Optimized gear clearance design and high-quality seal structure, which can tolerate a certain degree of impurities in hydraulic oil and reduce the impact of oil pollution on pump operation
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Wide Media Compatibility
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Compatible with various hydraulic oils (mineral oil, synthetic oil, etc.), adapting to different industrial working environment requirements
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II. Key Technical Parameters
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Parameter Category
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Value Range
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Displacement Range
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3-200 cm³/rev (0.18-12.2 in³/rev)
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Flow Capacity
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6-400 L/min (1.6-105.7 gal/min) @2000 RPM
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Speed Range
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600-3600 RPM (rated speed 2000-3200 RPM)
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Working Pressure
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Continuous: 250-350 bar, Intermittent: 380 bar (depending on model)
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Temperature Range
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Suitable hydraulic oil temperature: -20°C to 90°C (please refer to the product catalog for details)
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Rotation Direction
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Standard is clockwise (counterclockwise can be customized)
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Weight
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7-40 kg (depending on model and configuration)
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Oil Port Size
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Suction port: 1 to 3 inches, Pressure port: 3/4 to 2 inches
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III. Common Models and Core Parameters Corresponding Table
The following table lists the common models of the PGP series, including basic and high-pressure enhanced models, with core parameters corresponding to the overall technical specifications of the series, referring to the official model specifications and practical application data[3]:
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Common Model
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Displacement
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Continuous Working Pressure
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Flow @2000 RPM
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Series Category
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PGP10-1R00-B100
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10 cm³/rev (0.61 in³/rev)
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250 bar
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20 L/min (5.3 gal/min)
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Basic High-Pressure
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PGP45-2R02-C200
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45 cm³/rev (2.75 in³/rev)
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300 bar
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90 L/min (23.8 gal/min)
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High-Pressure Enhanced
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PGP150-1R00-A300
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150 cm³/rev (9.15 in³/rev)
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350 bar
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300 L/min (79.3 gal/min)
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High-Pressure Enhanced
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PGP502A0012AP2D1NE3E2B1B1
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12 cm³/rev (0.73 in³/rev)
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275 bar
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24 L/min (6.3 gal/min)
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Basic High-Pressure
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PGP505A0060CQ2D2NE5E3B1B1
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60 cm³/rev (3.66 in³/rev)
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275 bar
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120 L/min (31.7 gal/min)
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High-Pressure Enhanced
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19 cm³/rev (1.16 in³/rev)
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310 bar
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38 L/min (10.0 gal/min)
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High-Pressure Enhanced
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PGP620-0370
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37 cm³/rev (2.26 in³/rev)
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275 bar
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74 L/min (19.5 gal/min)
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High-Pressure Enhanced
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Note: The parameters in the table are for reference only. For the exact parameters of specific models, please refer to Parker’s official product catalog and technical manual.
IV. Model Classification and Structure
The PGP series adopts a precision external gear integrated structure, with a modular design of gear pair and pump body, which is divided into multiple sub-series according to displacement, pressure grade and installation type, to meet the diverse needs of industrial systems:
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PGP Basic High-Pressure Series:
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Sub-series such as PGP03/PGP05/PGP10/PGP20
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Covers small to medium displacement range (3-60 cm³/rev), continuous working pressure 250-300 bar, suitable for general industrial hydraulic systems
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Single pump configuration, simple structure, high cost performance
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PGP High-Pressure Enhanced Series:
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Sub-series such as PGP30/PGP45/PGP60/PGP200
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Large displacement range (30-200 cm³/rev), continuous working pressure up to 350 bar, suitable for heavy-duty high-pressure hydraulic systems
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Reinforced gear and pump body, with stronger wear resistance and pressure-bearing capacity
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Typical Model Examples:
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PGP10-1R00-B100: Small displacement external gear high-pressure pump
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PGP45-2R02-C200: Medium displacement high-pressure enhanced gear pump
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PGP150-1R00-A300: Large displacement external gear industrial pump
V. Applicable Industrial Fields
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Heavy Industrial Equipment: Steel rolling mills, forging machines, mining machinery, etc., providing stable high-pressure hydraulic power for heavy-duty operations
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Hydraulic Stations: Various industrial hydraulic stations, suitable for fixed hydraulic power supply scenarios
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Machine Tool Equipment: CNC machine tools, machining centers, etc., providing reliable power for hydraulic clamping, feeding and other mechanisms
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Construction Machinery: Auxiliary hydraulic systems of excavators, loaders, etc., adapting to harsh construction site environments
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Petrochemical Equipment: Hydraulic systems of oil drilling, pipeline transportation equipment, with strong corrosion resistance and stability
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Marine Equipment: Hydraulic systems of ships, offshore platforms, adapting to high humidity and high corrosion environments
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Other Industrial Applications: Hydraulic test benches, material handling equipment, metallurgical auxiliary equipment, etc.
VI. Installation and Maintenance Points
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Installation Notes:
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Ensure the coaxiality error between the pump shaft and the drive shaft is ≤0.1 mm to avoid gear wear and vibration caused by misalignment
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The suction pipeline should be short and straight, with good airtightness, and the diameter should not be smaller than the pump suction port to avoid suction resistance
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It is recommended to install a suction filter (filtration accuracy ≤100μm) and a pressure relief valve to protect the pump body and system components
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Before initial start-up, fill the pump with clean hydraulic oil and exhaust thoroughly to prevent dry friction between gears
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Maintenance Recommendations:
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Use hydraulic oil above NAS 7 grade, and regularly check the oil cleanliness, oil level and oil temperature to avoid oil deterioration
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Replace the filter element every 2000 working hours and the hydraulic oil every 6000 working hours (adjust according to the working environment)
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Regularly check the gear wear, seal tightness and pump body temperature, and replace worn gears and seals in time
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If abnormal noise, vibration or oil leakage occurs, stop the machine for inspection immediately to avoid further damage to the pump
VII. Selection Reference
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Select the appropriate displacement and pressure grade according to the system’s maximum working pressure and flow demand
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Combine working environment (temperature, corrosion, pollution) to select the appropriate material and seal configuration
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Choose single or multiple pump combinations according to system layout and flow requirements
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Pay attention to the driving speed and coaxiality requirement to ensure the pump works in the optimal condition
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For heavy-duty and long-term operation scenarios, select the high-pressure enhanced series to ensure reliability and service life
The Parker PGP series external gear high-pressure industrial gear pump is famous for its robust structure, high-pressure bearing capacity and stable performance. It provides a reliable and cost-effective hydraulic power solution for various industrial hydraulic systems, helping users improve equipment operation efficiency and reduce maintenance costs. For specific details, please refer to Parker’s official product catalog and technical manual.
