188489 ⎘
Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being deformable, e.g. Bourdon tube the deformable sensing element acting as a throttling member
A GAS-PRESSURE REGULATOR
#2PRESSURE ADJUSTING VALVE AND SPEAKER
#3Fluid pressure regulator
#4Vacuum valve
#5Apparatus for managing pressure events in protective casings and related methods