Valve Factory - China Valve Manufacturers & Suppliers

Steam Turbine EH Oil System Servo Valve 072-559A

The electrohydraulic servo valve 072-559A is an important component of the hydraulic servo system. It is a hydraulic control valve that continuously controls flow and pressure in proportion by changing input signals. The minimum flow size of the nozzle valve is about 0.2 mm, while the minimum flow size of the nozzle baffle servo valve is 0.025~0.10 mm. Therefore, the nozzle has strong anti-pollution ability, high reliability, and long service life. The anti-pollution ability of servo valves is generally determined by the minimum flow rate in their structure. However, in multistage servo valves, the minimum size in the front stage oil circuit becomes the decisive factor.

inquiry detail
Flow Control Servo Valve 072-1202-10

Flow Control Servo Valve 072-1202-10 is mainly used for high pressure regulating valve of main machine in power plant, intermediate pressure regulating valve of main steam valve, main steam valve and other parts. When changing oil in the system, the servo valve should be thoroughly cleaned of the oil tank before injecting new oil, and replaced with a flushing plate. After passing through 5~10 μ The m oil filter fills the oil tank with new oil. Start the oil source, flush for more than 24 hours, then replace or clean the filter, and complete the re cleaning of the pipeline and oil tank. If the servo valve is blocked during use, users who do not have the necessary conditions are not allowed to disassemble the servo valve without authorization. Users can replace the filter according to the instructions. If the fault cannot be eliminated, it should be returned to the production unit for repair, troubleshooting, and adjustment.

inquiry detail
SM4-20(15)57-80/40-10-S182 actuator electro-hydraulic servo valve

SM4-20(15)57-80/40-10-S182 actuator electro-hydraulic servo valve can provide system closed loop control with exact positional accuracy, repeatable velocity profles, and predictable force or torque regulation.
Typical applications include plastic injection molding and blow molding systems, test and simulation equipment, die casting machines, hydraulic press brakes, animation and entertainment equipment, oil exploration vehicles, and lumber machinery.
This model of the high performance SM4 series offers a wide range of rated ﬂows from 3,8 to 76 l/min (1.0 to 20 USgpm) at ∆p of 70 bar (1000 psi).

The SM4 is a two-stage, modular design, ﬂow control valve which can be manifold or subplate mounted. The symmetrical, dual coil, quad air gap torque motor is integrally mounted to the frst stage nozzle ﬂapper pilot valve with six screws. The second stage utilizes a four-way sliding spool and sleeve arrangement with a mechanical null adjust. Spool position is fed back to the frst stage by means of a cantilever spring. An integral 35 micron (absolute) flter reduces sensitivity to contamination of the frst stage.

inquiry detail
Electro-hydraulic servo valve G761-3034B

G761-3034B Electro-hydraulic servo valve is an actuator that converts electrical signal input into high-power pressure or flow pressure signal output. It is an electro-hydraulic conversion and power amplification component that can convert small electrical signals into large hydraulic power, driving various types of loads. This series of electro-hydraulic servo valves can be used as three-way and four-way throttle flow control valves, with fast response, pollution, and other characteristics, suitable for position, velocity, force (or pressure) co servo control systems.

inquiry detail
Steam turbine servo valve PSSV-890-DF0056A

The servo valve PSSV-890-DF0056A is mainly used for automation control in control systems. In addition to being used in the power plant industry, it is also widely used in other hydraulic control systems, such as machine tools, injection molding machines, metallurgical equipment, aerospace equipment, automobiles, ships, petroleum, chemical engineering, water conservancy, mining, and other fields. In addition, the servo valve PSSV-890-DF0056A can also be used for adjusting and controlling parameters such as flow, pressure, liquid level, and temperature in industrial automation control systems, as well as precise control and motion control in fields such as robots, stages, and display equipment.

inquiry detail
Servo valve SV4-20(15)57-80/40-10-S451

Servo valve SV4-20 (15) 57-80/40-10-S451 outputs modulated flow and pressure after receiving electrical analog signals. It is not only an electro-hydraulic conversion component, but also a power amplifier component. It can convert small and weak electrical input signals into high-power hydraulic energy (flow and pressure) output. In an electro-hydraulic servo system, it connects the electrical and hydraulic parts to achieve the conversion of electro-hydraulic signals and hydraulic amplification. The electro-hydraulic servo valve is the core of the control of the electro-hydraulic servo system.

inquiry detail
Steam turbine Servo Valve J761-003A

The servo valve J761-003A is also an excellent equipment servo valve, suitable for electro-hydraulic position, speed, pressure or force control systems that require high dynamic response, providing guarantees for the safe and efficient operation of the system.

inquiry detail
Servo valve SM4-40(40)151-80/40-10-H919H

Servo valve SM4-40(40)151-80/40-10-H919H is widely used in electro-hydraulic position, velocity, acceleration, force servo systems, and servo vibration generators. It has the advantages of small size, compact structure, high power amplification coefficient, high control accuracy, good linearity, small dead zone, high sensitivity, good dynamic performance, and fast response speed.

inquiry detail
23D-63B steam turbine turning solenoid valve

Turning solenoid valve 23D-63B is designed for turbine steering control. Turning gear is a driving device that drives the shaft system to rotate before and after the steam turbine generator unit is started and stopped. The turning gear is installed on the rear bearing box cover between the turbine and the generator. When it is necessary to rotate, first pull out the safety pin, push the handle and hand turn the motor coupling until the meshing gear is fully meshed with the rotating gear. When the handle is pushed to the working position, the contact of the travel switch is closed and the steering power supply is connected. After the motor is started at full speed, it drives the turbine rotor to rotate.

inquiry detail
AST/OPC solenoid valve coil 300AA00086A

The AST/OPC solenoid valve coil 300AA00086A can be equipped with an emergency trip solenoid valve, which is an emergency stop device, also known as a safety valve or emergency shut-off valve. Its main function is to quickly cut off the power supply or medium flow in case of danger or emergency, in order to protect the safety of equipment and personnel. Emergency trip solenoid valves are generally controlled by electrical or pneumatic signals, which have the characteristics of fast response speed and high reliability. In power plants, emergency trip solenoid valves are important safety protection devices that require regular inspection and maintenance to ensure their normal operation and reliability.

inquiry detail
AST solenoid valve coil Z6206052

The solenoid valve coil Z6206052 is a plug-in type and is used in conjunction with the valve core. Thread connected oil manifold blocks play a corresponding role. Used for emergency trip systems of steam turbines, where the trip parameters of the turbine control the closure of the inlet valve or speed control valve.

inquiry detail
AST/OPC solenoid valve SV4-10V-C-0-00

The AST/OPC solenoid valve SV4-10V-C-0-00 is a valve that is opened or closed by electromagnetic force. Used in gas or liquid circuits. There are many types of structures, but the principle of action is basically the same. When the control circuit inputs an electrical signal, a magnetic signal is generated in the solenoid valve. This magnetic signal drives the electromagnet to generate an action, corresponding to the opening and closing of the valve.

inquiry detail