Cartridge Relief Direct-Acting Valves

Reliable Pressure Limiting for Demanding Circuits

Cartridge relief direct-acting valves are compact hydraulic components designed to act as pressure limiting devices in demanding circuits. They are particularly valued for their low hysteresis and low internal leakage, ensuring precise and efficient protection of hydraulic systems under varying operating conditions. Their cartridge format allows easy integration into manifolds and blocks, reducing external piping and simplifying circuit design.

At Hydraulics Online, we supply cartridge relief direct-acting valves from a wide range of global manufacturers including Hydraforce, Atlantic Fluid Tech … and many more with expert guidance to help you select the right valve for your application.

Our website shows only a selection of what we supply. For impartial advice and access to our full range of hydraulic components, contact our expert team.

Cartridge Relief Direct-Acting Valve. For impartial advice and access to our full range of hydraulic components, contact our expert team.

These valves open immediately when system pressure exceeds a set limit, diverting excess fluid to protect actuators, pumps, and other components.

Key features include:

Direct-acting design – responds instantly to pressure changes without pilot operation.
Pressure limiting function – prevents overloads and damage to hydraulic circuits.
Compact cartridge format – integrates seamlessly into hydraulic manifolds.
Low hysteresis – ensures consistent performance and repeatability.
Minimal leakage – improves efficiency and reduces energy loss.

Fast response – immediate protection against pressure spikes.
Reliable performance – built for demanding hydraulic environments.
Energy efficiency – low leakage reduces wasted energy.
Compact integration – saves space and simplifies hydraulic circuit layouts.

Versatile functionality – suitable for a wide range of mobile and industrial applications.

These valves are widely used in:

They are particularly valuable in systems requiring precise, reliable pressure limiting with minimal leakage.

How do direct-acting relief valves differ from pilot-operated relief valves? Direct-acting valves respond instantly to pressure changes, while pilot-operated valves provide more stable control in high-pressure systems.

Are these valves suitable for high-pressure applications? Yes. They are designed for demanding circuits where fast response and reliability are critical.

Can cartridge relief valves be integrated into manifolds? Absolutely! Their cartridge design makes them ideal for compact manifold installation.