Pressure Control Valve Pressure control valves are capable of regulating the system pressure to adjust the force on the hydraulic piston rod or the torque on the hydraulic motor shaft. Pressure relief valves are used to set the maximum pressure in the circuit and prevent it from being overloaded. Pressure reducing valves permanently maintain the output pressure at the set value while preventing overloading of the equipment. Unloading valves are designed for economic pressure control in accumulator operating circuits and are used as a power source for emergency control. Classification of pressure control valve In the pneumatic transmission system, all pressure control valves work on the principle of balance between air pressure and spring force, which can be divided into the following three categories: 1. Pressure reducing valve. Also known as pressure regulating valve, setting device (precision pressure reducing valve), etc., it plays the role of pressure reducing and stabilizing; 2. Overflow valve. Also known as safety valve, pressure-limiting shut-off valve, etc., it plays the role of pressure-limiting safety protection; 3. Sequence valve and balance valve. Depending on the pressure of the gas circuit, some control is performed. Next, we mainly introduce you this single-seat cut-off pressure control valve. Single Seat Globe Pressure Control Valve advantages: Hydraulic pressure control valve has Long life 1. Single Seat Globe Control Valve Valve Trims According to the needs of the working conditions, different materials and surface hardening treatment can easily be chosen to meet the requirements of each function module of trim to improve its performance of the corrosion, cavitation and erosion resistant, lengthen service life. 2. Pressure Control Valve body The body of LN8 Single Seat Globe Valves consists of two passages from upper and lower, forming a shape like letter "S". The design of an elliptical section reduces the flow resistance and turbulent flow to keep the flow fluent. The flap in the middle of upper passage can reduce the eddy flow and increase the flow capacity. 3. Single Seat Globe Valve Actuator The standard mate of Single Seat Globe Valves is AM8 Multi-spring pneumatic diaphragm actuator, which can be used in many conditions with the features of strong output force, high reliability, long lifespan and extensive applications. The output force changes with the number of springs. The high stress resistant diaphragm, bearing maximum pressure of 0.5 MPa air supply, gives globe valves a reliable shutoff. This type of actuator has a long life cycle with more than 1
