How does the electric control valve regulate various factors of the pipeline medium?

Electric control valves are driven by a power source to drive electric actuators, which in turn drive the valve for throttling. They are important control unit instruments in industrial automation process control. As the level of automation in the industrial field increases, they are being applied in various industrial production areas. Compared to traditional pressure regulating valve series, electric control valves have significant advantages: electric single-seat control valves are energy-saving, environmentally friendly, and easier to install.

Electric control valves drive the differential pressure regulating valve series to change the cross-sectional area between the valve core and the valve seat by receiving signals from the industrial automation control system, controlling the flow, temperature, pressure, and other process parameters of the pipeline medium, achieving automated regulation.

The electric actuator of the electric sleeve control valve is an integrated electronic structure, which contains a servo amplifier. By inputting control signals and power to the pneumatic broadcast regulating valve series, the valve opening can be controlled to achieve regulation of pressure, flow, liquid level, temperature, and other process parameters. Note: To ensure that the control valve operates normally during startup and that the system runs safely, the new valve should first be checked to ensure that the nameplate markings on the valve match the design requirements before installation.

Article 3: If a major repair has been made to the control valve in the original system, in addition to verifying the above items, a sealing inspection should also be conducted on the packing box and connection points of the old valve.

Article 4: In field use, many issues with control valves are often not caused by the quality of the control valve itself, but rather by improper installation and use of the electric control valve, such as improper installation environment, position, direction, or unclean pipelines.

Article 1: Control valves belong to field instruments, and the environmental temperature should be in the range of -25 to 60°C, with a relative humidity of 95%. If installed outdoors or in high-temperature environments, waterproof and cooling measures should be taken. In areas with vibration sources, they should be kept away from the vibration source or additional anti-vibration measures should be implemented.

Article 2: Electric control valves should generally be installed vertically; in special cases, they can be tilted. If the tilt angle is large or the weight of the valve itself is too heavy, supporting components should be added for protection.

Article 3: The pipelines for installing control valves should generally not be too high off the ground or floor. When the pipeline height exceeds 2m, a platform should be set up as much as possible to facilitate the operation of the handwheel and maintenance.

Article 4: Before installing the electric control valve, the pipeline should be cleaned to remove dirt and welding slag. After installation, to ensure that no impurities remain in the valve body, the valve should be cleaned again, meaning that all valves should be opened when the medium is introduced to prevent impurities from getting stuck. After using the handwheel mechanism, it should be returned to the original neutral position.

Article 5: To allow the production process to continue in the event of a fault or maintenance of the electric control valve, a bypass pipeline should be added to the control valve.