The figure above shows a hydraulic sliding-spool valve. The piston inside the valve slides back and forth to block and release ports in the housing. This valve sometimes called as a piston type spool valve, the sliding-spool valve has a piston of which the inner areas are equal. The hydraulic oil pressure from the inlet …
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Hydraulic relief valves are one of pressure control valve type. Hydraulic relief valve has many functions such as giving overload protection or to limit the force/torque on hydraulic rotary actuator. Hydraulic relief valve consist of to two main sections: 1. Body section to contain a piston and spring to retain the piston on its seat. …
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