Threaded pipe fittings, fire pipe fittings.

Addtime：2016.03.04

　　The structure characteristics and working principle of screw gate valve:

　　Screw valve refers to the valve body with a threaded valve, can be used for various pipeline connection thread.

　　Can be used to control air, water, steam, all kinds of corrosive media, mud, oil, liquid metal and radioactive media, and other types of fluid flow.

　　Threaded valve characteristics:

　　1, the structure is simple, manufacture and maintenance is more convenient.

　　2, the work schedule is small, the opening and closing time is short.

　　3, good sealing, sealing surface between the friction force is small, long life.

Previous： Thread fittings maintenance and maintenance

Next： Pay attention to what the problem is to replace the abrasive grinding thread fittings in before and