Assertion: diver's regulator | /r/CapableOf | work on similar principle
Facets:
value: to the demand regulator
type: TRANSITIVE-OBJECT
Source sentences:
text: The reclaim regulator works on a similar principle to the demand regulator, in that it allows flow only when the pressure difference between the interior of the helmet and the ambient water opens the valve, but uses the upstream over-pressure to activate the valve, where the demand valve uses downstream underpressure.