Filling valves are a key component in hydraulic circuits with double-acting actuators, particularly in systems using large-sized cylinders. Their main function is to allow rapid fluid transfer to the non-pressurized chamber during the return stroke, preventing cavitation and improving the retraction speed of the actuator. They are especially useful in high-speed applications such as hydraulic presses or industrial lifting systems.

At fluid-hub you can find durable and reliable filling valves, designed to ensure controlled and safe flow even under demanding conditions. Thanks to their compact design and ability to handle high flow rates, these components enhance system efficiency by reducing cycle times and improving actuator dynamics.

filling valves can be differentiated by:

• Preload pressure settings, which can be adjusted to match system requirements.

• Construction type, including poppet and cartridge designs for flexible integration.

• Installation options, such as in-line mounting or integration within the cylinder body.

To complete your system design, you may also be interested in other valve types available on our site:

• Directional on-off valves, for controlling flow direction.

• Modular on-off valves, ideal for stack-mounted systems.

• Flow control on-off valves, for regulating actuator speed.

• Pressure control on-off valves, essential for system stability and safety.

• In-line on-off valves, suitable for general-purpose applications.

• Proportional valves, for precise and progressive flow control.

For ongoing performance and simplified maintenance, visit our section of valve spare parts, where you'll find seals, springs, poppets, and other original replacement parts.

Browse the full hydraulic valves section for a complete overview of all available types. For press and large cylinder applications, fluid-hub also offers hydraulic accumulators for energy storage and transient damping.