The function of the electro-hydraulic servo valve SM4-20 (15) 57-80/40-10-H607H is to convert the electrical signals of speed and load into hydraulic signals through the servo valve, push the hydraulic motor spool valve to move, change the opening of the speed control valve, and change the steam intake of the unit, so that the speed or load of the unit reaches the given value, and the system reaches a new equilibrium state.

In servo systems, hydraulic actuators, compared with electrical and pneumatic actuators, have the characteristics of good speed, high output power per unit weight, stable transmission, and strong anti-interference ability. On the other hand, electrical components are often used when transmitting signals and correcting characteristics in servo systems. Therefore, modern high-performance servo systems also use electro-hydraulic methods, and servo valves are essential components of such systems.

The servo valve Function of Servo Valve SM4-20(15)57-80/40-10-H607H has a complex structure, high cost, and high requirements for oil quality and cleanliness. In hydraulic servo systems, almost 70% of servo valve failures are caused by oil contamination, so it is important to pay attention to the operating conditions of the servo valve, as it directly affects the stability of the entire servo system.

In the DEH system of steam turbine, there are many different types of servo valve available. Contact Yoyik if you need any type of steam turbine servo valve.
DEH Solenoid Valve 072-559A
Electro-Hydraulic Servo Valve With Middle Valve J761-003
Thermal Power Servo Valve 072-1202-10
Servo Flow Control Valve G761-3033B
SERVOVALVE HYDRAULIC SM4-20(15)57-80/40-10-S182
Servo Valve Price DH.00.176
Van Servo (Servo Valve) J761-003A
Electro Hydraulic Servo Actuator ZD.01.003
Servo Valves For Turbine Governors G761-3034B
HYDRAULIC SERVO PROPORTIONAL VALVE SF21A
Servo Valve Catalog 0508.1161T0101.AW031
Valve Servo Motor 0508.1161T0103.AW031
Mechanical Type Servo Valve 0508.1300T0102.AW003
Valve J761-004A