Assertion: gate valve | /r/ObjectUse | used in medium in the pipeline
Facets:
value: in the pipeline
type: LOCATION
value: generally
type: MANNER
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.