Hydraulic components - Pressure relief valve

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Hydraulic oil can do an incredible amount of work very efficiently. However, it also can cause extreme damage to pumps, motors, hose, and fittings when there is no safety relief valve. Every hydraulic system should have at least one, if not two, relief valves. One functions as the primary and the other is a backup. The main relief ensures the system does not work above a certain pressure. The backup relief valve kicks in should the main relief fail. Also, the backup valve usually is set higher than the main relief.

Hydraulic Pressure Relief Valve types:

Pilot Operated Relief Valve Low Noise Type Pilot Operated Relief Valve Low Noise Type Solenoid Pilot Operated Relief Valve HC Type Pressure Control Valve Reducing Pressure Valve Reducing Pressure With Check Valve Remote Control Relief Valve