The valves can be roughly classified in terms of form, material and use. There are some types as follows:

1. Classify gate valve, stop valve, check valve, cock, ball valve, butterfly valve, diaphragm valve, special valve (safety valve, release valve, vacuum valve, steam trap, etc.) from the form.

2. Classify bronze valve, cast iron valve, cast steel valve, forged steel valve, stainless steel valve, special alloy valve, lining valve, plastic valve, etc.

3. It can be classified into general mechanical use, construction use, sewer use, petroleum use, general chemical use, steel making use, thermal power generation use, atomic energy use and oxygen production use, etc.