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Pump Control Power Valve | Constant Power Control Valve for Hydraulic Pumps

Pump Control Power Valve (Constant Power Control Valve) is the core control component for variable displacement piston pumps. It automatically adjusts pressure and flow to maintain stable power output, providing constant power control, overload protection, power matching and energy-saving operation. It is widely used in construction machinery, industrial hydraulics and mobile machinery to improve system stability, safety and service life.

Features

Constant Power Output: Stabilizes power output, avoids overload, and matches the rated power of motors and engines.
Overload Protection: Quickly reduces displacement under sudden high pressure or heavy load, protecting pumps, valves, motors and engines.
Power Matching: Prevents stalling, black smoke and engine shutdown, improving fuel efficiency and operational stability.
Combined Control: Works with pressure cut-off, load sensing and flow control to optimize system response.
Energy Saving & High Efficiency: Delivers flow on demand, reduces overflow loss, lowers energy consumption and heat generation.

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Technical Features
- Fast response, precise control and strong contamination resistance.
- Adjustable power setting (mechanical / electric proportional), suitable for multiple working conditions.
- Compact structure, integrated into the pump body for easy installation and maintenance.
- Suitable for high-pressure and large-flow systems with high reliability.
Applications
- Construction Machinery: Excavators, loaders, cranes, concrete pump trucks.
- Industrial Equipment: Injection molding machines, die-casting machines, hydraulic presses, metallurgical equipment.
- Mobile Machinery: Forklifts, aerial work platforms, agricultural machinery.
- Marine & Special Vehicles: Marine hydraulic systems, special working vehicles.
Advantages Compared with Ordinary Valves
- Ordinary Relief Valve: Only controls pressure, cannot control power, easy to overload and high energy consumption.
- Pump Control Power Valve: Dual control of pressure and flow, with constant power, protection and energy saving, providing more stable and efficient system performance
Selection & Installation Notes
- Select according to pump displacement, system pressure, power setting and control mode (mechanical / electric proportional).
- Can be directly integrated into variable displacement piston pumps or externally installed, matching the pump’s variable interface.
- Set power slightly lower than the rated power of the driving motor/engine to ensure safety margin.
Remarks: 4 Models availabe for optional, see data sheet (download)