Precautions for installation and use of electric regulating valve
(1) The regulating valve is a field instrument, and the ambient temperature is required to be in the range of -25 to 60 °C, and the relative humidity is ≤95%. If it is installed in the open air or in high temperature places, waterproof and cooling measures should be taken. Where there is a vibration source, keep away from the vibration source or increase anti-vibration measures.
(2) The regulating valve should be installed vertically in general, and can be tilted under special circumstances. For example, when the tilt angle is large or the valve itself has too much weight, the valve should be protected by a support.
(3) Generally, the pipeline where the regulating valve is installed should not be too high from the ground or the floor. When the height of the pipeline is greater than 2 m, a platform should be set up as much as possible to facilitate the operation of the handwheel and facilitate maintenance.
(4) Before installing the regulating valve, the pipeline should be cleaned to remove dirt and welding slag. After installation, in order to ensure that impurities do not 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 impurities from getting stuck. After using the handwheel mechanism, it should return to the original neutral position.
(5) In order to make the production process continue in the case of failure or maintenance of the regulating valve, the regulating valve should be equipped with a bypass pipeline.
