In addition to pipeline parameters, electric valves should also pay special attention to their working environment, because the electrical device in the electric valve is an electromechanical device, and its working environment has a great influence on its working conditions. The working environment of electric valves is generally as follows:
1. There are protective measures for indoor installation or outdoor use;
2. When it is installed outdoors, it will be corroded by wind, sand, rain, sunlight, etc.;
3. An environment with flammable, explosive gas or dust;
4. Humid tropical and dry tropical environment;
5. The temperature of the pipeline medium is above 480;
6. The ambient temperature is lower than -20;
7. Easy to be submerged or immersed in water;
8. Environments with radioactive materials (nuclear power plants and radioactive material testing devices);
9. The environment on the ship or wharf (with salt spray, mold and humidity);
10. Occasions with severe vibration;
11. Places prone to fire;
