What should be paid attention to when installing and using electric control valve?

Electric regulating valve is a very common type of regulating valve, and regulating valve is the most used type of final control element. It plays a very important role in the automatic control of modern factories. Correct use will increase the life of the electric control valve.

The correct use and maintenance of the electric control valve can not only improve the reliability of process control, but also increase the service life of the electric control valve, which has considerable economic benefits for the energy saving and consumption reduction of the enterprise. In the field use of regulating valves, many of them are not caused by the quality of the regulating valve itself, but caused by improper installation and use of the regulating valve, such as the installation environment, improper installation position and direction, or unclean pipelines. Therefore, the following aspects should be paid attention to when installing and using the electric control valve:

(1) The regulating valve is a field instrument, and the ambient temperature should be in the range of -25～60℃, and the relative humidity should be ≤95%. If it is installed in the open air or in a high-temperature place, waterproof and cooling measures should be taken. Keep away from the vibration source or increase anti-vibration measures where there is a seismic source.
(2) The regulating valve should generally be installed vertically, and can be tilted under special circumstances. For example, when the tilt angle is large or the valve itself is too heavy, the valve should be protected by supporting parts.
(3) Generally, the pipeline for installing the regulating valve should not be too high from the ground or the floor. When the pipeline height is greater than 2 m, the platform should be set as far as possible to facilitate the operation of the hand wheel and facilitate the maintenance.
(4) The pipeline should be cleaned before installation of the regulating valve to remove dirt and welding slag. After installation, in order to ensure that no impurities remain in the valve body, the valve should be cleaned again, that is, all valves should be opened when the medium is introduced to prevent the impurities from getting stuck. After using the handwheel mechanism, it should be restored to the original neutral position. 
(5) In order to enable the regulating valve to continue the production process in the event of failure or maintenance, the regulating valve should be equipped with a bypass pipeline. At the same time, special attention should be paid to whether the installation position of the regulating valve meets the requirements of the process.
www.hengjiafirefighting.com