Direct acting relief valves
The M20 is a direct acting cartridge relief valve.
A cone shutter positioned inside the cartridge opens the oil passage when the system pressure reaches the set value.
Through the adjustment screw it is possible to calibrate the valve to the desired pressure.
The maximum operating pressure for the M20 valve is 350 bar, while the maximum flow rate is 20 l/min.
The M20 relief valves must be installed in the standard SA8/2 cavity.
The external components are made of high-strength steel and are protected against corrosion by a zinc-plated treatment.
For applications exposed to particularly aggressive corrosive agents (eg marine applications) a zinc-nickel surface treatment is available.
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