1, corrosive media: should choose the plastic Wang solenoid valve and all stainless steel; for strong corrosive media must use isolation diaphragm. Neutral medium, but also the choice of copper alloy valve material for the solenoid valve, otherwise, the valve shell often rust off, especially the action is not frequent occasions. Ammonia valve can not use copper.
2, explosive environment: must use the appropriate explosion-proof grade products, open-air installation or dust occasions should use waterproof, dust-proof varieties.
3, the solenoid valve nominal pressure should exceed the maximum working pressure in the tube.