Plunger Pump A4VSO Series A4VSO250DR/30R-PPB13N00

Key Features

Constant Power Control: Automatically adjusts swashplate angle based on system pressure and flow, maintaining steady power output and reducing energy waste.

High-Pressure Capacity: Rated pressure 350bar, peak 400bar, ensuring reliable performance in demanding environments.

Durable Materials: Cylinder and plunger made from 40CrNiMoA alloy steel with HRC65 hardness, wear-resistant swashplate, and high-pressure PTFE seals for long-lasting operation.

Noise and Flow Stability: Flow pulsation ≤1.6%, noise level as low as 54dB, providing quieter and smoother hydraulic performance.

Integrated Safety Features: Overload protection valve and anti-pollution filter ensure safe operation and extended service life.

Structural and Material Innovation

The A4VSO250DR/30R-PPB13N00 features a swashplate constant power variable plunger design, distinct from A22V and A20VLO series, with:

Stepless displacement adjustment from 0–250 cm³/rev

High-precision angular contact ball bearings supporting radial and axial loads

Advanced ceramic-coated plungers for superior wear resistance

Anti-pollution control module with 13V signal output for intelligent system integration

Model Interpretation

The model code A4VS0250DR/30R-PPB13N00 has a clear and professional coding logic, which is easy for purchasers to quickly identify product parameters without professional hydraulic knowledge, and is completely different from the model interpretation of the A22V, A20VLO series and other previous series. The specific interpretation is as follows:   

A4VS0: Swashplate constant power variable plunger pump series (core identifier, distinguishing from A22V electro-hydraulic proportional variable, A20VLO inclined-axis variable and vane/gear pumps);     

250: Rated displacement of 250 cm³/rev, focusing on high-power, large-flow output, which is 5.6 times that of the A22V series core model and 1.3 times that of the A20VLO series core model;

DR: Constant power variable + pressure cut-off control mode, realizing automatic energy-saving adjustment and overload protection, which is the core difference from the A22V and A20VLO series;  

30R: Standard flange connection specification (conforming to ISO 3019/2), with right-hand installation direction, compatible with most high-power industrial equipment installation standards;

PPB13N00: Integrated high-pressure anti-pollution control module + 13V signal output configuration, ensuring stable operation in complex impurity-containing working conditions and supporting intelligent system connection.

As the core model of the A4VS0 series, Plunger Pump A4VSO Series A4VSO250DR/30R-PPB13N00 is specially optimized for high-power, high-pressure and complex working conditions, with outstanding constant power control and overload protection performance, and is widely favored by global purchasers in mining, metallurgy, heavy machinery and other fields.

Application Scenarios

The Plunger Pump A4VSO Series A4VSO250DR/30R-PPB13N00 is suitable for high-power hydraulic systems including:

Large-scale mining machinery: coal mine shearers, ore crushers

Metallurgical equipment: rolling mills, continuous casting machines

Heavy-duty engineering machinery: large excavators, cranes

Industrial hydraulic stations and presses requiring constant power

FAQ

Q1: What is the maximum operating pressure of this pump?

A: The pump operates at a rated pressure of 350bar, with a peak of 400bar, ensuring reliable high-pressure performance for demanding applications.

Q2: How does the constant power mechanism work?

A: It automatically adjusts the swashplate angle based on system pressure and flow, maintaining constant output power and preventing energy waste from overloads.

Q3: Can this pump handle contaminated hydraulic fluids?

A: Yes, it includes a high-pressure anti-pollution control module and integrated filter, effectively preventing impurities from entering the pump and ensuring stable operation.

Q4: Is it compatible with existing hydraulic systems?

A: The standard ISO 3019/2 flange and right-hand installation make it compatible with most high-power industrial equipment, and it can be used in multi-pump parallel configurations.

Q5: What is the expected service life of this pump?

A: With high-strength materials, precision bearings, and full-process quality control, the pump achieves up to 18,000 hours of operation, far exceeding industry averages.