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Hydraulic piston pumps PQ SERIES

Hydraulic piston pumps PQ SERIES

Product catalog summary

Overview

The PQ Series comprises axial piston hydraulic pumps designed for diverse industrial applications. These pumps operate at a maximum working pressure of 250 bar and can withstand peak pressures up to 280 bar. Available displacements range from 15cc to 70cc, making them adaptable to various system requirements.

Key Features

Swash plate design optimized for multiple applications.
Low-noise operation even at full pressure.
Modular control system that enhances power savings, reduces size, and lowers costs.
Low power consumption and minimal oil temperature rise, suitable for compact power units.

Specifications

The pumps come in multiple displacement sizes (15cc to 70cc) and include rear threaded port versions. Model codes specify pump size and control configurations, facilitating precise selection.

Type Codes and Versions

A standardized coding system identifies pump models, displacement sizes (e.g., PQ15, PQ18, PQ23, PQ25, PQ38, PQ42, PQ50, PQ70), and port versions. Certain codes (such as B2) apply only to pumps with displacements between 23 and 70 cc/rev.

Control Types

HL Valve Control: Manual adjustment of pressure and flow with two pressure control displacements, promoting low oil temperature and energy efficiency.
Two-Stage Pressure Control: Enables fast pressurizing and energy savings by switching between low pressure/high flow and high pressure/low flow modes.
Remote Pressure Control: Pressure adjustment via remote valves, ideal for lifting equipment and vibration reduction.
Combination Controls: Includes solenoid-operated valves for two-stage pressure and flow control, unloading functions to reduce noise and temperature during idle, and proportional relief valves for energy savings.
Electrical Controls: Remote pressure compensators with quick response and stable pressure supply, allowing manual or electrical control with energy-saving benefits.

Control Benefits

Automatic flow reduction maintains constant pressure once system pressure reaches working pressure.
Manual and remote adjustment options enhance operational flexibility.
Energy savings of 30-50% compared to traditional vane or gear pumps.
Unloading functions help maintain low oil temperature and noise during system stops.

Dimensions and Mounting

Detailed dimensional data cover all PQ Series variants, including shaft types (splined shafts), port configurations (rear threaded ports), and flange sizes compliant with SAE standards. This ensures compatibility and ease of installation in hydraulic systems.

Pump Combinations and Couplings

The series supports multi-pump assemblies with various coupling models (e.g., COUP - PQ15+15, COUP - PQ23-1, COUP - PQ70-7). Thru-drive dimensions and views assist in system integration and assembly.

Critical Information and Recommendations

Maximum working pressure: 250 bar; peak pressure: 280 bar.
Displacement range: 15cc to 70cc.
Design priorities include low noise and minimal temperature rise.
Modular and remote control options improve energy efficiency and operational flexibility.
Comprehensive dimensional data ensure compatibility with standard hydraulic components.
Selection of control types should be based on application needs such as lifting, long dead head operations, or energy savings.

Additional Document Information

The document also references product dimensions and includes several notes (e.g., NOTE 01, NOTE 02) likely containing important clarifications or instructions. A 24-month warranty from Hydraut is specified, underscoring product reliability and quality assurance.

Limitations

The provided excerpt lacks detailed technical tables, diagrams, or specific dimension values, limiting the ability to present exhaustive specifications or procedural details.

Conclusion

The PQ Series axial piston pumps offer versatile, energy-efficient hydraulic solutions with multiple control options and configurations. Their modular design, low noise operation, and detailed dimensional data make them well-suited for a broad range of industrial hydraulic applications.

Catalog excerpts

Hydraulic piston pumps PQ SERIES WORKING PRESSURE: UP TO 250 BAR PEAK PRESSURE: UP TO 280 BAR DISPLACEMENTS: FROM 15CC TO 70CC

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AXIAL PISTON PUMP AXIAL PISTON PUMP 1. PQ Series pump, swash plate design suitable for various applications 2. Special design, low noise level during full pressure time 3. Modular control, advantages are: 5 0 2 power saving small size, low cost PQ 4. Low power consuming, low oil temperature rising, suitable application for assembling small power units PQ

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AXIAL PISTON PUMP TYPE CODE FOR STANDARD PROGRAM TYPE CODE FOR STANDARD PROGRAM PQ AXIAL PISTON PUMP TYPE CODE FOR STANDARD PROGRAM version rear threaded port Thru Thru

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L PISTON PUMP AXIAL PISTON PUMP AXIAL PISTON PUMP PQ SERIES PQ SERIES PQ SERIES TYPE CODE FOR STANDARD PROGRAM ODE FOR STANDARD PROGRAM TYPE CODE FOR STANDARD PROGRAM TYPE CODE FOR STANDARD PROGRAM B2 valid only for pumpsB2B2 valid onlycc/rev from 23 23 to 70 cc/rev from 23only forfor pumps from to 70 cc/rev valid to 70 pumps Splined shaft: Splined shaft: Splined shaft:

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IAL PISTON PUMP AXIAL PISTON PUMP TYPE CODE FOR STANDARD PROGRAM E CODE FOR STANDARD PROGRAM PROGRAM TYPE CODE FOR STANDARD Thru Thru

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AXIAL PISTON PUMP CONTROL TYPE CONTROL TYPE Circuit diagram Curve 1. When the system pressure increases and reaches the working pressure, the flow decreases automatically and the pressure remains constant. 2. Pressure and flow can be adjusted manually. 1. The same functions of A control type. 2. Pressure can be adjusted remotely by a remote control valve. 1. HL valve with two different pressure control displacements. 2. The flow can be changed by the HL valve. The sensing feedback can reach low oil temperature and energy saving. 1. The flow can be adjusted from 0 to the maximum, and pressure...

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AXIAL PISTON PUMP CONTROL TYPE CONTROL TYPE Curve HYDRAUT CR is a combination of FG and flow control low tension unloading valve (included). It is suitable for constant speed lifting equipments, and 2 stage working pressure. SOL OFF: low tension unloading SOL ON: 2-stage pressure and flow. D type is a combination of A type and low tension unloading valve (included). It is suitable for long uploading operations. When the system stops, the oil temperature and noise maintain low levels thanks to the unloading function. Circuit diagram DG type is a combination of D and G types. HYDRAUT 2-stage pressure...

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AXIAL PISTON PUMP CONTROL TYPE CONTROL TYPE Circuit diagram Curve 1. It is an electrical two-stage pressure and flow control to adjust LP to HF and HP to LF. 2. Pressure can be adjusted by a remote control valve. 3. LP and HP pressure values and HF flow value can be adjusted optionally. 1. It is a remote pressure compensator with NG6 interface. 2. Quick response, stable pressure supply. 3. Suitable for manual or electrical control. 1. GJ is a combination of GM control with a proportional relief control valve (included). 2. The proportional valve is installed on the NG6 interface to achieve energy...

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AXIAL PISTON PUMP CONTROL TYPE CONTROL TYPE Curve 1. It controls two different pressure stages, by adding a solenoid valve with unloading function. 2. When the system stops, the oil temperature and noise maintain low levels thanks to the unloading function. 1. HQ control with load-sensing and proportional flow control. 2. The pump displacement is controlled by an electrical signal provided by an external driver. Circuit diagram 1. HK is a combination of HQ control and a proportional relief control valve (included). 2. Compared to a traditional vane/gear pump system this control can reach 30-50%...

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AXIAL PISTON PUMP AXIAL PISTON PUMPPUMP AXIAL PISTON PQ SERIES PQ SERIES PQ SERIES DIMENSION DIMENSION DIMENSION AXIAL PISTON PUMP PQR15A-PQR18A Standard Standard pressureVersion -rear threaded threaded port PQR15A-PQR18A -- Standard pressure control --Version rear threaded port PQR15A-PQR18A - pressure control control Version rear port PQR15A-PQR18A - Standard pressure control - Version rear threaded port

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AXIALAXIAL PISTON PUMP AXIAL PISTON PUMP AXIALPISTON PUMP PISTON PUMP PQ SERIES PQ SERIES PQ SERIES PQ SERIES DIMENSION DIMENSION DIMENSION DIMENSION

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AXIALAXIAL PISTON PUMP AXIALPISTON PUMP PISTON PUMP PQ SERIES PQ SERIES PQ SERIES DIMENSIONS DIMENSION DIMENSION DIMENSION

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AXIALAXIAL PISTON PUMP AXIALPISTON PUMP PISTON PQ15E, PQ18E - PUMP PQ SERIES PQ SERIES PQ SERIES

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AXIALPISTON PUMP PISTON PUMP AXIALAXIAL PISTON PUMP AXIAL PISTON PUMP PQ SERIES PQ SERIES PQ SERIES PQ SERIES DIMENSIONS DIMENSION DIMENSION DIMENSION DIMENSION

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AXIALPISTON PUMP PISTON PUMP AXIALAXIAL PISTON PUMP PQ SERIES PQ SERIES PQ SERIES DIMENSION DIMENSION DIMENSION

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AXIAL PISTON PUMP PISTON PUMP AXIAL AXIAL PISTON PUMP PQ SERIES PQ SERIES PQ SERIES DIMENSIONS DIMENSION DIMENSION DIMENSION

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AXIAL PISTON PUMP AXIAL PISTON PUMP *flange included in the scope of supplyin the scope of supply

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AXIALPISTON PUMP PISTON PUMP AXIALAXIAL PISTON PUMP PQ SERIES PQ SERIES PQ SERIES DIMENSIONS DIMENSION DIMENSION DIMENSION

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AXIALPISTON PUMP PISTON PUMP AXIALAXIAL PISTON PUMP PQ SERIES PQ SERIES PQ SERIES DIMENSION DIMENSION DIMENSION

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AXIALAXIAL PISTON PUMP AXIALPISTON PUMP PISTON PUMP PQ SERIES PQ SERIES PQ SERIES DIMENSIONS DIMENSION DIMENSION DIMENSION

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PISTON PUMP AXIALAXIAL PISTON PUMP AXIALPISTON PUMP PQ SERIES PQ SERIES PQ SERIES DIMENSIONS DIMENSION DIMENSION DIMENSION

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AXIAL PISTON PUMP AXIALAXIAL PISTON PUMP AXIAL PISTON PUMP PISTON PUMP PQ SERIES PQ SERIES PQ SERIES PQ SERIES DIMENSIONS DIMENSION DIMENSION DIMENSION DIMENSION

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AXIALAXIAL PISTON PUMP PISTON PUMP AXIAL PISTON PUMP PQ SERIES PQ SERIES PQ SERIES

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AXIALAXIAL PISTON PUMP PISTON PUMP AXIAL PISTON PUMP PQ SERIES PQ SERIES PQ SERIES DIMENSIONS DIMENSION DIMENSION DIMENSION

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AXIAL PISTON PUMP AXIAL PISTON PUMP DIMENSIONS DIMENSION DIMENSION PQ23, PQ25 -PQ25 PQ23, PQ *flange included in the scope of supplyin the scope of supply

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