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Rexroth PGH-2X Internal meshing gear pump

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Description

Bosch Rexroth PGH-2X Series Internal Gear Pump

Product Overview

The PGH-2X series is a range of fixed-displacement, gap-compensated internal gear pumps designed and manufactured by Bosch Rexroth. Engineered for high-pressure, fatigue-resistant operations, these pumps deliver exceptional performance with low noise levels and minimal flow pulsation, making them suitable for a wide array of industrial applications.

Key Features

  • Fixed Displacement Design: Ensures stable fluid delivery with gap compensation technology, maintaining high efficiency even at low speeds and viscosities.
  • Low Operational Noise: Equipped with involute tooth system and optimized meshing design, resulting in minimal flow and pressure pulsation.
  • Broad Compatibility: Suitable for various hydraulic fluids including HLP, HETG, HEES, HFD, and HFC (with corresponding seal options).
  • Flexible Combination: Can be combined with internal gear pumps, radial piston pumps, and external gear pumps; all frame sizes and specifications are mutually combinable.
  • 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

Example: PGH3-2X/016RE07VU2 (Material No.: R900951305)
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

Widely used in high-cycle load drives with constant/variable speed or accumulator charging functions, such as plastic processing machines, machine tools, presses, and test benches.
Note: Not all variants according to the ordering code are available. Select pumps using the selection table or consult Bosch Rexroth technical personnel.

Shipping & Delivery

Process steps:
Customer inquiry: Customers will make inquiries before placing an order to understand product details and communication needs.
Quotation: According to customer needs, provide a formal quotation, including the name, model, quantity, delivery time, payment method, etc. of the goods.
Order confirmation: After the customer confirms the quotation, a formal purchase order will be placed.
Confirm the delivery time: communicate the delivery time with the production department, inform the factory of the order details, and arrange the production plan.
Sign an export contract: After the two parties confirm that it is correct, sign an export contract to establish a trade relationship.
Implement the letter of credit (if applicable): If the payment method of the letter of credit is used, the customer needs to be urged to issue the certificate and review the contents of the letter of credit.
Export stocking: According to the requirements of the contract and the letter of credit, arrange production, purchase raw materials and packaging, and prepare the goods.
Chartering and booking: Contact the freight forwarder to make a booking and arrange the transportation of goods.
Export inspection: Apply to the quality inspection department for export commodity inspection and provide relevant documents.
Apply for a write-off slip: apply for a write-off slip from the foreign exchange management department for subsequent foreign exchange write-off.
Export declaration: Declare exports to the customs and provide documents such as power of attorney for customs declaration, customs declaration form for export goods, commercial invoice, packing list, etc.