Assertion: sprinkler's water pressure | /r/CapableOf | open valve
Facets:
Source sentences:
text: A sprinkler system employing automatic sprinklers that are attached to a piping system containing air or nitrogen under pressure, the release of which (as from the opening of a sprinkler) permits the water pressure to open a valve known as a dry pipe valve, and the water then flows into the piping system and out the opened sprinklers.
text: This releases the internal water pressure thus opening the valve, allowing water to flow through the valve.