Pressurised liquid control valve

摘要

A pressurised liquid control valve 1 comprises a biasing means to bias the valve to a closed mode and an opening means to open the valve the valve to an open mode. An operating weight element 7, which has marginally less than neutral buoyancy, is connected to the opening means by a depending element 8 such that the valve 1 is opened when the full weight of the operating weight causes an opening moment of force. (61) Addition to 535912