Assertion: gate valve | /r/HasProperty | close
Facets:
value: fully
type: DEGREE
Source sentences:
text: Knife gate valve is generally used in the pulp, slag, coal ash and sewage, chemical raw materials such as medium in the pipeline, and can only be fully open and close, for block valve is used, cannot be used to adjust flow use.
text: Because of the special structure of the gate valve, when the gate valve is fully open and fully closed, the stroke is large, and the opening and closing time is long, especially during manual operation, which is time consuming, so the gate valve is usually installed on the pipeline that does not need to be opened and closed frequently. .