Pressure relief valves are designed to protect hydraulic systems from exceeding the allowable pressure by diverting excess hydraulic fluid to the tank or return line. They ensure safe and stable system operation, preventing equipment damage and hazardous situations.
Such valves are widely used in industrial equipment, mobile and heavy machinery, presses, machine tools, lifting equipment, as well as construction and agricultural machinery, where reliable pressure control and limitation are required.
Pressure relief valves are available in subplate mounting versions for installation on standard mounting plates, as well as in cartridge designs for direct integration into hydraulic manifolds. This provides flexibility in hydraulic system design, compact construction, and ease of installation. Cartridge valves reduce the number of connections and pressure losses, while subplate-mounted valves simplify maintenance and component replacement.
Pressure relief valves are designed for maximum pressures of up to 480 bar and maximum flow rates of up to 760 l/min, ensuring reliable, durable, and safe operation under demanding operating conditions.

Argo-Hytos pressure relief valves are designed to protect hydraulic systems from excessive pressure. These valves are rated for pressures of up to 480 bar and flow rates of up to 250 l/min.

Duplomatic pressure relief valves are designed to protect hydraulic systems from excessive pressure. These valves are rated for pressures of up to 400 bar and flow rates of up to 500 l/min.

SUN Hydraulics pressure relief valves are designed to protect hydraulic systems from excessive pressure. These valves are rated for pressures of up to 350 bar and flow rates of up to 760 l/min.

Argo-Hytos pressure reducing-relieving valves reduce and maintain preset pressure in selected hydraulic circuits while protecting components from overpressure. They ensure safe and stable operation at pressures up to 420 bar and flows up to 150 l/min

SUN Hydraulics pressure reducing/relief valves are used to reduce and maintain preset pressure in selected hydraulic circuits while protecting components from overpressure. They are rated for pressures up to 350 bar and flow rates up to 320 l/min.