PGF2-22/013RE20VE4 Rexroth Hydraulic Gear Pump 13cc 210bar

Product Overview

The PGF Series is Bosch Rexroth‘s leakage-gap-compensated fixed-displacement internal gear pump, belonging to the medium-pressure pump product line. The PGF pump’s core construction comprises a pair of gear wheels supported by slide bearings, along with a housing, front cover, and rear cover. The drive shaft drives one gear wheel, which in turn drives the second gear wheel in the opposite direction. Hydraulic fluid is entrapped in the gear chambers and delivered along the housing from the suction port to the pressure port.

This page features three PGF Series models: PGF2-22/013RE20VE4 (13 cc/rev), PGF2-2X/022RE20VE4 (22 cc/rev), and PGF3-3X/020LJ07VU (20 cc/rev). The PGF Series offers frame sizes 1, 2, and 3, with displacements ranging from 1.7 to 40.5 cm³/rev. Component series 2X corresponds to frame sizes 1 and 2, while 3X corresponds to frame size 3. Maximum operating pressure reaches 250 bar, suitable for industrial and mobile applications in open circuit systems.

The PGF Series internal gear pumps feature modified involute gear tooth profiles with a floating crescent separator that divides the high and low pressure chambers and provides radial pressure compensation. The axial compensation plate ensures optimal axial sealing, minimizing internal leakage to the lowest possible level.

As original specification models within the Bosch Rexroth PGF line, these products enable direct form-fit-function interchangeability with original Rexroth units—no modifications to piping or mounting interfaces required. Our replacement solutions strictly adhere to Rexroth technical standards and undergo 100% simulated in-service testing to ensure performance, reliability, and service life identical to OEM products.

Technical Specifications

Model 1: PGF2-22/013RE20VE4

Applicable Model:

• PGF2-22/013RE20VE4

Model Code Breakdown (per Bosch Rexroth naming convention):

• Product Series: PGF — Internal Gear Pump

• Frame Size: 2 — Frame size 2

• Displacement Code: 013 — 13.3 cm³/rev

• Component Series: 22 — 2X Series

• Rotation: R — Right-hand

• Seals: E — FKM shaft seal

• Port/Flange Configuration: 20VE4 — Specific interface configuration

This Model Detailed Specifications (per Bosch Rexroth official documentation):

• Geometric Displacement: 13.3 cm³/rev

• Operating Pressure: 210 bar

• Maximum Speed: Approx. 3,000 min⁻¹ (frame size 2 typical)

• Minimum Speed: Approx. 600 min⁻¹

• Rotation Direction: Right-hand (clockwise)

• Seal Material: FKM

• Fluid Compatibility: Mineral hydraulic oil (HL, HLP)

Model 2: PGF2-2X/022RE20VE4

Applicable Model:

• PGF2-2X/022RE20VE4

• Material Number: R900932176

Model Code Breakdown (per Bosch Rexroth naming convention):

• Product Series: PGF — Internal Gear Pump

• Frame Size: 2 — Frame size 2

• Component Series: 2X — 2X Series

• Displacement Code: 022 — 22 cm³/rev

• Rotation: R — Right-hand

• Seals: E — FKM shaft seal

• Port/Flange Configuration: 20VE4 — Specific interface configuration

This Model Detailed Specifications (per Bosch Rexroth official documentation):

• Geometric Displacement: 22 cm³/rev

• Rated Operating Pressure: 180 bar

• Peak Pressure: 210 bar

• Maximum Operating Pressure: 250 bar (intermittent)

• Maximum Speed: 3,000 min⁻¹

• Minimum Speed: 600 min⁻¹

• Theoretical Flow (@1,450 rpm, 10 bar): 31.9 L/min

• Rotation Direction: Right-hand (clockwise)

• Mounting Flange: ISO 3019-2 80B4HW 2-bolt flange

• Line Connection: Square flange per DIN 3901/3902

• Shaft Type: Splined shaft DIN 5482

• Seal Material: FKM

• Ambient Temperature Range: -20°C to +60°C

• Hydraulic Fluid Temperature Range: -20°C to +100°C

• Absolute Inlet Pressure: 0.6 – 3 bar

• Viscosity Range: 10 – 300 mm²/s

• Weight: Approx. 5.8 kg

Model 3: PGF3-3X/020LJ07VU

Applicable Model:

• PGF3-3X/020LJ07VU

• Material Number: R900948466

Model Code Breakdown (per Bosch Rexroth naming convention):

• Product Series: PGF — Internal Gear Pump

• Frame Size: 3 — Frame size 3

• Component Series: 3X — 3X Series

• Displacement Code: 020 — 20 cm³/rev

• Rotation: L — Left-hand

• Seals: J — Special seal configuration

• Port/Flange Configuration: 07VU — Specific interface configuration

This Model Detailed Specifications (per Bosch Rexroth official documentation):

• Geometric Displacement: 20 cm³/rev

• Operating Pressure: 250 bar

• Maximum Speed: 3,600 min⁻¹

• Minimum Speed: 500 min⁻¹

• Maximum Flow Rate: 74.16 L/min

• Rotation Direction: Left-hand (counterclockwise)

• Seal Material: FKM

• Shaft Type: Splined 13T 16/32 DP, ISO 3019-1

• Fluid Compatibility: HEES, HEPR, HL, HLP

• Application Features: Variable-speed drives, low noise and pulsation, gap compensation

• Durability: Suitable for two million load cycles at maximum pressure

Key Technical Advantages

1. Leakage Gap Compensation Technology — High Volumetric Efficiency
The PGF Series employs leakage gap compensation, where operating pressure forces movable slide bearings against the gear end faces to create dynamic seals. The axial compensation plate ensures optimal axial sealing. High efficiency is maintained even under low-viscosity conditions.

2. Modified Involute Gear Tooth Profile with Crescent Separator — Ultra-Low Noise Operation
Both internal and external gears feature modified involute tooth profiles. A floating crescent separator divides the high and low pressure chambers while providing radial pressure compensation. This creates a nearly zero-clearance seal between gear tips and the crescent separator, effectively reducing flow pulsation and operating noise. The PGF Series is suitable for variable-speed drives with extremely low noise and pulsation levels.

3. Excellent Suction Characteristics with Wide Operating Range
The PGF Series offers excellent suction characteristics with a broad speed range (500–3,600 min⁻¹) and wide viscosity tolerance. FKM seals withstand hydraulic fluid temperatures from -20°C to +100°C.

4. Modular Design with Flexible Multi-Pump Configurations
All frame sizes and displacements within the PGF Series can be combined with each other. The pumps can be combined with internal gear pumps PGH, vane pumps PV7, and axial piston pumps. Integrated valve technology in the connection cover is available upon request. Standardized ISO and SAE mounting dimensions ensure complete interchangeability with original products.

5. Long Service Life and High Reliability
The PGF Series is suitable for two million load cycles at maximum pressure. The robust aluminum/cast iron combination construction ensures a long service life and high reliability.

Application Areas

• Machine Tools: Pressure oil supply for machine tool hydraulic systems

• Construction Equipment: Hydraulic systems for mobile machinery (lifting equipment, fans, spreaders, etc.)

• Industrial Hydraulic Systems: Industrial automation hydraulic power units

• Metallurgical Equipment: Hydraulic transmission systems in the metallurgical industry

• Mining Machinery: Hydraulic systems for mining equipment

• Marine & Civil Aviation Ground Equipment: Hydraulic transmission for marine and civil aviation ground equipment

Expert Maintenance Tips

1. Installation Precautions

• The PGF Series is a uni-directional rotation pump—verify that the system‘s required rotation direction matches the pump’s identification marking before installation. PGF2-22/013RE20VE4 and PGF2-2X/022RE20VE4 feature right-hand rotation; PGF3-3X/020LJ07VU features left-hand rotation.

• Ensure coaxial alignment between the pump and drive shaft; flexible couplings are recommended to avoid radial loads on the pump shaft.

• Absolute inlet pressure must be maintained between 0.6 – 3 bar to prevent cavitation and avoid seal overload.

• The suction line diameter must not be smaller than the pump inlet port.

2. Fluid Management

• Use mineral hydraulic oils conforming to DIN 51524 standards (HL, HLP).

• System fluid cleanliness must meet Rexroth-recommended standards.

• Hydraulic fluid temperature should be maintained within -20°C to +100°C.

• Viscosity should be maintained within 10 – 300 mm²/s.

• Prime the pump by filling the housing with hydraulic fluid through the suction port before initial start-up. Never run the pump dry.

3. Start-Up & Commissioning

• Use jog start method for initial start-up; verify correct rotation direction before continuous operation.

• Allow the pump to run under no-load (low pressure) conditions for 2-3 minutes to purge air and ensure proper lubrication.

• Gradually increase to operating pressure while monitoring noise, temperature, and system pressure for normal operation.

4. Routine Maintenance

• The PGF gear pump itself is maintenance-free; however, regular maintenance of the entire hydraulic system is essential for trouble-free pump operation.

• Inspect system fluid cleanliness and condition every 1,000-2,000 operating hours.

• Regularly replace return line filters and suction strainers to prevent contaminant ingress into the pump body.