Pressure gauge for detecting and displaying air pressure in pipe system, has cover detachably attached to base, which is provided with window for exposing display displaying air pressure detected by pressure detector

摘要

A base (10) contains controlling tube (14) having outer end protruding out from base and inner end protruding into chamber (11) of base and communicating with inlet tube (12) on base. A control knob (16) is mounted on controlling tube to open or close a communication between inner end of controlling tube and inlet tube. A display (20) mounted in chamber, is connected to pressure detector (152) mounted in chamber, to display air pressure detected by detector. A cover (30) detachably attached to base, is provided with window (31) through which display is exposed.