Description
The Stainless Steel Flange Control Gate Valve is composed of an electric actuator and a gate valve body. The gate is controlled by the power supply pressure to move up and down in a straight line to connect or close the fluid medium in the pipeline. The applicable pressure, temperature and caliber range is very large, especially suitable for medium and large diameter pipelines. Electric gate valves can be divided into many series, and the actuators are on-off type and intelligent type. The structural form is very changeable. When selecting the model, users should be familiar with the preparation instructions of the electric gate valve model to avoid problems such as choosing the wrong model, placing the wrong order, and unknown technical parameters causing replacement and return.
Working principle
As the name implies, electric gate valves use electric actuators to control gate valves. They are mainly divided into upper and lower parts. The upper part is the electric actuator and the lower part is the gate valve. The actuator and the gate valve are connected, and the electric actuator controls the gate valve to open and close to achieve the on-off of the pipeline medium. Gate valves are generally suitable for on-off occasions and are normally open and closed valves. If the working conditions require adjustment, electric regulating valves, electric ball valves, electric butterfly valves, electric globe valves, etc. are generally selected.
Product details
Electric actuators are composed of motors and gearboxes, and are specialized in valve automation. They operate gate valves, butterfly valves, ball valves, globe valves, and other valves by output torque. Manual operation of valves using handwheels is also a standard feature of actuators. The control unit processes data to operate the actuator in the opening and closing directions. Usually, the control unit is equipped with local control and integrated into the actuator as an electrical interface with the DCS operating system.
Integrated control
When the actuator is powered on, the actuator equipped with an integrated control unit can be operated by the operating elements of the local control. The control unit is fully adapted to the actuator. The actuator can be set up on site without connecting to the DCS system. Only the transmission and exchange of operating commands and feedback signals are required between the control system and the actuator. The on-off control of the motor is completed instantly in the device.
Diverse needs
The process technology sites of supporting pipelines and automated valves are all over the world. Not only the site and valve type are important factors in the selection of electric actuators, but also the climate environment of on-site operation is crucial. FRYA electric actuators guarantee safe and reliable services under various extreme environmental conditions.
In process technology, liquids, gases, steam and particles need to pass through pipelines. Actuators are remotely controlled from the control room to operate industrial valves, controlling the flow rate by opening and closing the valves to inhibit or release the pipeline medium.
The typical representative of multi-turn valves is gate valves. They require the actuator to output multiple turns in the full stroke from fully closed to fully open (or from fully open to fully closed). Control valves are typically used for linear operation. At the same time, some specific valves are operated by levers.
