Pressure Limitation and Safety Protection: Through safety valves or overflow valves, when the system pressure exceeds the preset safety limit, the valve automatically opens to release excess fluid, preventing equipment overload, damage, or accidents.
Pressure Stability and Constancy: The overflow valve can be used as a constant pressure valve in a fixed displacement pump system to maintain a basically constant pressure at the pump outlet or somewhere in the system, providing a stable pressure source for the actuator components.
Pressure Reduction and Branch Control: A pressure reducing valve is used to reduce the inlet high pressure to a stable, lower outlet pressure, providing the required pressure for specific branch circuits (such as clamping, lubrication, or control circuits) in the hydraulic system, thus fulfilling the need for different pressures from a single oil source supply.
Action sequence control: The sequence valve utilizes system pressure as a control signal. When the inlet pressure reaches the set value, the valve opens, thereby controlling the actuator (such as a hydraulic cylinder) to operate in a predetermined sequence.
Pressure signal conversion: The pressure relay converts liquid pressure signals into electrical signals, which are used to control the start and stop of electrical components (such as motors and solenoid valves), achieving automatic control, interlock protection, or unloading functions of the system.
