Installation of electric regulating valve precautions

Installation of electric regulating valve precautions

Electric regulating valve installation should pay attention to the following aspects:

1, the control valve should be installed before the pipeline cleaning, remove dirt and welding slag. After installation, in order to ensure that no impurities remain in the valve body, the valve should also be cleaned again, that is, when the medium should be opened so that all valves open to prevent impurities stuck. After using the hand wheel mechanism, should be restored to the original neutral position.

2, the control valve should generally be mounted vertically, under special circumstances can be tilted, such as the tilt angle is very heavy valve itself should be increased when the support valve protection.

3, the implementing agencies reducer after repair should pay attention to refueling lubrication, low-speed motor generally do not demolition and refueling. Assembly should also check the valve position and valve position opening instructions are consistent.

4, the control valve is a field instrument, requiring ambient temperature should be -25 ~ 60 ℃ range, relative humidity ≤ 95%. Is to install outdoor or high temperature occasions, should take waterproof, cooling measures. A source side to stay away from the vibration source or increase the anti-vibration measures.

5, electric regulating valve electrical part of the installation should be related to electrical equipment construction requirements. In the case of explosion-proof products, they should be installed in accordance with the "Installation Specification for Electrical Equipment in Explosion Hazardous Locations". Such as the scene wire SBH or other six-core or eight core, outer diameter of about Φ11.3mm rubber skin to install cable. Use and maintenance, explosion-proof area is strictly prohibited open cover maintenance and prying open the explosion-proof surface. At the same time do not disassemble knock or injury flameproof surface, after the repair to restore the original flameproof state.

6, the control valve failure or repair of the production process can continue, the control valve should be added bypass pipeline. At the same time should also pay special attention to whether the valve installation position meets the process requirements.

7, the installation of control valve pipe generally not from the surface or plate is too high, the pipe height is greater than 2m should be set as the platform, in order to facilitate the operation of the hand wheel and easy maintenance.