Assertion: sprinkler's design | /r/RelatedTo | smaller clapper surface area
Facets:
Source sentences:
text: To prevent the larger water supply pressure from prematurely forcing water into the piping, the design of the dry pipe valve (a specialized type of check valve) results in a greater force on top of the check valve clapper by the use of a larger valve clapper area exposed to the piping air pressure, as compared to the higher water pressure but smaller clapper surface area.