Do hydraulic pumps have relief valves?
Do hydraulic pumps have relief valves? 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. What does a relief valve do in a hydraulic system? In a hydraulic circuit, a relief valve opens and bypasses fluid when pressure exceeds its set value. The valve then closes again when pressure falls down. This means a...