Rexroth PGH-2X Internal meshing gear pump
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Bosch Rexroth PGH-2X Series Internal Gear Pump
Product Overview
Key Features
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Fixed Displacement Design: Ensures stable fluid delivery with gap compensation technology, maintaining high efficiency even at low speeds and viscosities.
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Low Operational Noise: Equipped with involute tooth system and optimized meshing design, resulting in minimal flow and pressure pulsation.
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Broad Compatibility: Suitable for various hydraulic fluids including HLP, HETG, HEES, HFD, and HFC (with corresponding seal options).
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Flexible Combination: Can be combined with internal gear pumps, radial piston pumps, and external gear pumps; all frame sizes and specifications are mutually combinable.
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Standard Compliance: Mounting dimensions comply with ISO 3019-1, and connection dimensions adhere to ISO 6162-1 for universal interchangeability.
Technical Specifications
|
Parameter
|
Specification
|
|---|---|
|
Frame Sizes
|
BG2, BG3
|
|
Nominal Sizes (NG)
|
005, 006, 008 (BG2); 011, 013, 016 (BG3)
|
|
Geometric Displacement (Vg)
|
5.24 – 16.0 cm³
|
|
Drive Speed Range
|
600 – 3000 rpm (minimum drive power: 0.55 kW)
|
|
Operating Pressure
|
Continuous: 315 bar (mineral oil), 210 bar (special fluids); Intermittent: 350 bar (mineral oil), 230 bar (special fluids)
|
|
Inlet Pressure
|
0.8 – 2 bar (0.6 bar allowed temporarily during startup)
|
|
Flow Rate (n=1450 rpm, p=10 bar, ν=46 mm²/s)
|
7.5 – 23.0 l/min
|
|
Temperature Range
|
Mineral oil: -10°C to +80°C; Special fluids: -10°C to +50°C (consult for other ranges)
|
|
Weight
|
4.3 – 5.3 kg (varies by specification)
|
Ordering Code Breakdown
|
Position
|
Code
|
Description
|
|---|---|---|
|
01
|
PG
|
Internal gear pump, fixed displacement, gap-compensated
|
|
02
|
H
|
High-pressure pump (max. pressure 350 bar)
|
|
03
|
2/3
|
Frame size (BG2=2, BG3=3)
|
|
04
|
2X
|
Unit series 20-29 (unchanged mounting/connection dimensions)
|
|
05
|
005-016
|
Nominal size (NG)
|
|
06
|
R/L
|
Rotation direction (R=clockwise, L=counter-clockwise, viewed from shaft end)
|
|
07
|
E/R/S
|
Drive shaft (E=parallel keyed shaft; R/S=splined shaft)
|
|
08
|
07
|
Line ports (SAE flange connection per ISO 6162-1)
|
|
09
|
V/W
|
Seal material (V=FKM; W=FKM+NBR for HFC fluids)
|
|
10
|
U2
|
Mounting flange (2-hole per ISO 3019-1)
|
Typical Applications
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