Key Features & Design Advantages
Proven Robustness and Long Life: The pump incorporates a heavy-duty design with an enlarged shaft and bearings to minimize internal deflection and wear under high loads, contributing to an extended service life and reduced downtime.
High Power Density and Efficiency: Capable of continuous operation at high pressures, it delivers significant power in a relatively compact and lightweight housing. Its efficient design, including pressure-balanced rotating groups, helps maximize power transfer and can achieve high volumetric efficiency.
Responsive and Flexible Control: The variable displacement mechanism, often paired with pressure-compensating (DF) controls, allows the pump to automatically adjust its output flow to match system demand. This "on-demand" functionality enhances overall system energy efficiency.
Low Noise Operation: Engineered with features aimed at reducing operational noise, making it suitable for applications where a quieter working environment is important.
System Integration Friendly: Its "building block" design philosophy and availability of integrated controls, filters, and relief valves offer great flexibility for configuring systems to meet specific requirements.
Structural Features
- It adopts a swashplate design, which ensures high reliability and a long service life. The rotating and pressure - loaded components are pressure - balanced, and it is equipped with strengthened shafts and bearings.
- The pump has an integrated control pump, filter, and relief valve. Its "combination block" design enables a wide range of applications.
Control Modes
- There are various control modes, such as DF (pressure compensator control), DQ (mooring control), LR (power control with pressure limiter), ES (electric motor displacement control), HG (hand - wheel displacement control), FE (screw adjustment control), DP (displacement proportional to pressure signal), and SP (displacement proportional to electric signal).
Advantages
- It features an open - circuit hydraulic drive, which is stable and has a long service life. It can be externally controlled and offers multiple control methods. It has a high power - to - weight ratio, low noise, is easy to maintain, has high cost - effectiveness, low energy consumption, and an adjustable installation. It can also be connected with gear pumps or piston pumps.
The displacement control of Vickers PVXS plunger pump
ES - Electric Motor Displacement Control
HG - Handwheel Displacement Control (Special Function)
FE - Screw Adjustment Control (Special Function)
DF – Pressure compensator control
DQ - Mooring Control
LR - Power Control with Pressure Limiter
SP, SM – Proportional to the electric power output signal
DP - Displacement proportional to the pressure signal
