Assertion: valve | /r/CapableOf | open position
Facets:
Source sentences:
text: 1, whereby flow coming through the inlet will cause the valve to be swung to open position and that position will persist until the inlet flow lessens and reverse flow is set up whereupon reverse flow acting against the valve member will swing the valve to the closing position wherein the seal ring 40 will effect a positive seal, stopping reverse flow through the valve.