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Vickers Hydraulic Pumps – www.klhyd.com

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On 2026-05-15
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Vickers hydraulic pumps (a former Eaton brand, now part of Danfoss) are mainly divided into three core categories: vane pumps, axial piston pumps, and gear pumps. Each series has clear model specifications and definite application scenarios. The following is a detailed combing, including core models, displacement ranges and key distinguishing points, supplemented and improved with the latest product parameters for quick identification and selection.

I. Vane Pump Series (First Choice for Low Noise, Suitable for Medium and High Pressure Working Conditions)

Vane pumps are a classic product line of Vickers, characterized by low noise, compact structure and strong adaptability. The core series include V series, VQ series and VMQ series, covering various configurations such as single pumps, double pumps and triple pumps to meet different flow requirements.

1. V Series (Basic Universal Type, Design No. 22, Medium and Low Pressure)

The core models are based on “20V/25V/35V/45V”, and some models with “T” mark are through-shaft drive type, suitable for general industrial scenarios. The specific specifications are as follows:
  • 20V Series: Model prefix 20V, displacement range 7-45 cm³/r (0.45-2.8 in³/r), including single pumps and through-shaft drive pumps, maximum rated speed 1800rpm, continuous pressure 207bar, peak pressure 228bar, weight about 12.0kg (26lbs), used in medium and low pressure scenarios such as machine tools and small hydraulic stations.
  • 25V Series: Model prefix 25V (including 25VT through-shaft drive type), displacement range 33-67 cm³/r (2.0-4.1 in³/r), maximum rated speed 1800rpm, continuous pressure 172bar, peak pressure 190bar, weight about 14.8kg (33lbs), suitable for injection molding machines and small to medium-sized punch presses.
  • 35V Series: Model prefix 35V (including 35VT through-shaft drive type), displacement range 81-121 cm³/r (4.9-7.4 in³/r), maximum rated speed 1800rpm, continuous pressure 172bar, peak pressure 190bar, weight about 22.7kg (50lbs), used in large displacement scenarios such as large hydraulic stations and die-casting machines.
  • 45V Series: Model prefix 45V (including 45VT through-shaft drive type), displacement range 138-193 cm³/r (8.4-11.8 in³/r), maximum rated speed 1800rpm, continuous pressure 172bar, peak pressure 190bar, weight about 34.0kg (75lbs), suitable for ultra-large displacement requirements of heavy industrial equipment.

2. VQ/VQH Series (High Pressure and High Performance Type)

Upgraded on the basis of V series, suitable for high pressure and impact-resistant working conditions. The model prefixes are VQ and VQH, with a displacement range of 7.5-236.0 cm³/r, continuous pressure of 240-280bar, peak pressure of 315bar, and maximum speed of 2800rpm. It is wear-resistant and impact-resistant, mainly used in high-pressure circuits of construction machinery and heavy industrial equipment.

3. VMQ Series (Top-level High Pressure Type, Design No. 32)

As a high-end series of Vickers vane pumps, it adopts a 12-vane plug-in design, featuring low noise and strong cold start performance. It covers various configurations such as single pumps, through-shaft drive pumps, double pumps and triple pumps. The specific specifications are as follows:
  • Single Pump/Through-shaft Drive Pump: Model prefixes VMQ125(T), VMQ135(T), VMQ145(T), where “T” is the through-shaft drive mark; displacement range 10-215 cm³/r (0.62-13.12 in³/r), maximum rated speed 1800rpm for industrial use, up to 3000rpm for construction machinery use, continuous pressure 250-293bar, peak pressure 276-310bar, weight all 20.4kg (45lbs), capable of withstanding more than 10 million pressure cycles, suitable for industrial and mobile applications under harsh operating conditions.
  • Double Pump: Model prefix VMQ2, optional configurations include VMQ2 2525, VMQ2 3525, VMQ2 4525, VMQ2 4535, combined displacement range 20-373 cm³/r (1.23-22.763 in³/r).
  • Triple Pump: Model prefix VMQ3, optional configurations include VMQ3 352525, VMQ3 453525, combined displacement range 110-463 cm³/r (6.71-28.25 in³/r).

4. Supplementary Models of Double Pumps

In addition to the double pumps of the VMQ series, the basic V series also has double pump combination models, such as 2520V (25V+20V) and 3525V (35V+25V). The displacement range covers the superposition of the displacement of the corresponding single pumps, suitable for dual-circuit independent oil supply systems.

II. Axial Piston Pump Series (High Pressure Main Force, Suitable for Heavy Loads)

Axial piston pumps are characterized by high pressure, large flow and precise control. The core series include PVH, PVM/PVMX, PVQ, PVB and 420 series, suitable for heavy load and precision working conditions, with rich model specifications and various control methods.

1. PVH Series (Heavy-duty Flagship Type)

Adopting modular design, it has strong impact resistance. The model is centered on “PVH + displacement code”, and the displacement code corresponds to the specific displacement. The specifications are as follows:
  • Core Models: PVH057, PVH074, PVH098, PVH131, PVH141, displacement range 57-141 cm³/r, continuous pressure 280bar, peak pressure 350bar, maximum speed 3600rpm, impact-resistant and durable, suitable for heavy-duty scenarios such as construction machinery, mines and ships. It can be equipped with different installation interfaces and sealing materials, such as PVH098R01AJ70B (clockwise rotation, pressure compensation control, SAE flange interface).

2. PVM/PVMX Series (Low Noise and Precision Type)

Divided into industrial and construction machinery types, featuring low noise (64-79dBA) and precise control. The model is centered on “PVM/PVMX + displacement code”, and the specifications are as follows:
  • PVM Series: Core models include PVM018, PVM020, PVM045, PVM050, PVM057, PVM063, PVM074, PVM081, PVM098, PVM106, PVM131, PVM141, displacement range 18-141 cm³/r (1.1-8.60 in³/r); rated speed 1800rpm for industrial use, up to 2800rpm for construction machinery use, continuous pressure 230-280bar, peak pressure 350bar, weight 15-66kg, suitable for injection molding machines, wind power yaw systems and automatic production lines. The control methods can be pressure compensation, load sensing, electro-hydraulic proportional control, etc., such as PVM057ER10GS02AAA (proportional control, clockwise rotation) [3].
  • PVMX Series: High-performance upgraded version, displacement range 57-141 cm³/r, continuous pressure 280bar, peak pressure 350bar, maximum speed up to 3800rpm, suitable for high-speed servo systems and precision industrial equipment, adopting high-strength materials and reinforced bearings for better durability.

3. PVQ Series (Low Pulsation and Ultra-quiet Type)

In-line variable pump, featuring low noise, low pulsation and strong oil compatibility. The model is centered on “PVQ + displacement code”, and the specifications are as follows:
  • Core Models: PVQ05, PVQ10, PVQ15, PVQ20, PVQ29, PVQ40, PVQ45, PVQ63, PVQ100, displacement range 5-100 cm³/r, continuous pressure 210bar, peak pressure 280bar, maximum speed 3000rpm, excellent noise control, suitable for noise-sensitive scenarios such as precision machine tools and CNC equipment. For example, the PVQ40 model can reach a flow rate of 41L/min under the working condition of 1800rpm and 218bar, and can be adapted to special hydraulic fluids such as water-containing, emulsified and phosphate ester fluids [4].

4. PVB Series (Cost-effective Universal Type)

Optional fixed or variable displacement, easy to maintain. The model is centered on “PVB + displacement code”. Core models include PVB05, PVB10, PVB15, PVB20, PVB29, PVB45, PVB90, displacement range 5-90 cm³/r, continuous pressure 210bar, peak pressure 280bar, maximum speed 3000rpm, cost-effective, suitable for small and medium-sized hydraulic systems, shoe-making machinery, metallurgical equipment and other scenarios.

5. 420 Series (Piston Pumps Special for Construction Machinery)

Designed specifically for construction machinery, models include ADU041, ADU049, ADU062, displacement range 41.0-62.3 cm³/r (2.50-3.80 in³/rev), rated speed 2600-2650rpm, maximum rated pressure 280bar (4000psi), weight 21-22kg, suitable for high-pressure circuits of construction machinery such as excavators and loaders.

III. Gear Pump Series (Precision Low Pressure, Economical Type)

Gear pumps have simple structure and low cost, divided into internal meshing and external meshing types. The core series include PG, VGP, EG and 26000 series, suitable for low pressure and auxiliary circuit scenarios. The specific specifications are as follows:

1. PG Series (Internal Meshing, Precision and Low Noise)

Model prefix PG, displacement range 1.2-50.0 cm³/r, continuous pressure 160-210bar, peak pressure 250bar, speed range 1500-3000rpm, extremely low noise, small flow pulsation, volumetric efficiency ≥95%, suitable for scenarios with high requirements on precision and noise such as precision machine tools and printing equipment.

2. VGP Series (External Meshing, Universal Type)

Model prefix VGP, displacement range 3.0-100.0 cm³/r, continuous pressure 160bar, peak pressure 210bar, speed range 1000-3000rpm, simple structure and moderate cost, suitable for low-pressure circuits of construction machinery.

3. EG Series (External Meshing, Economical Type)

Model prefix EG, displacement range 5.0-150.0 cm³/r, continuous pressure 140bar, peak pressure 180bar, speed range 800-2800rpm, economical design, suitable for low-pressure auxiliary circuits of agricultural machinery and small equipment.

4. 26000 Series (External Meshing, Universal Auxiliary Type)

Model prefix 26000, displacement range 1.5-25.0 cm³/r, continuous pressure 140bar, peak pressure 180bar, speed range 1500-3000rpm, universal design, suitable for auxiliary hydraulic systems of industrial equipment.

IV. Core Rules for Model Nomenclature (Quick Identification)

Vickers hydraulic pump models have a unified coding logic. The core rules are as follows to facilitate quick interpretation of specifications:
  • Vane Pump (taking 25V21A-1C22R as an example): The first two digits are the series code (25V), the middle two digits are the displacement code (21), and the following are the shaft extension form, shaft extension specification, installation method, oil port connection and rotation direction in turn.
  • Axial Piston Pump (taking PVQ40-B2R-SE1S-20-C21 as an example): The first three digits are the series code (PVQ), the middle two digits are the displacement code (40), and the following are the control method, variable mechanism type, rotation direction, seal type, installation specification and oil port configuration in turn; the PVH series (such as PVH098R01AJ70B) includes information such as displacement, rotation direction, control options, installation interface, pressure level and seal material.
  • Mark with “T”: Through-shaft drive type; Prefix with “2/3” (such as VMQ2, VMQ3): Double/triple pump; “R/L”: Clockwise/counterclockwise rotation.
Newer Vickers variable displacement axial piston pumps – EATON
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Older YUKEN PV2R Series Single Vane Pump Product Manual