9. The environment on the ship or the dock (with salt spray, mold, and humidity);10. An environment with radioactive materials (nuclear power plants and radioactive material test devices);11. The valve body needs to be heat-insulated the same as the pipeline, especially when it is used in high-temperature media, it should be strengthened. Otherwise, because the ambient temperature is too high, it will affect the normal operation of the electric actuator. The electric actuator mechanism cannot be kept warm.
