Assertion: valve's size | /r/CapableOf | produce desired suction
Facets:
value: with the maximum number of valves
type: OTHER
value: in the duct network
type: LOCATION
Source sentences:
text: The blower of such suction systems is usually provided in a size which produces the desired suction in the duct network with the maximum number of valves, which may be open at one time.