| 摘要 |
The pressure gauge is designed for operative engagement with a fluid pressurized system such as a gas or a liquid. It includes a housing having a pressurized fluid inlet orifice and a cylindrical bore formed within the housing. A pressure reactive piston is slidably engaged within the cylindrical bore, and a resistance means is disposed within the cylinder to provide a resistive force to the movement of the piston. A calibration means engages the resistance means to apply a user selectable calibration force to the piston, and a calibration means engagement means is utilized to fixedly engage the calibration means in the user selectable position. An arm member is disposed proximate the piston, whereby movement of the piston will cause movement of the arm member, and a pressure indicator means is engaged to the arm to provide an indication of the pressure level of the fluid.
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