| Product Name | Diesel Injector Nozzle Pop Pressure Tester |
| Size | 2.5” |
| Case/ring | Black-painted steel |
| Wetted Parts | Copper alloy |
| Bourdon Tube | Phosphor bronze |
| Lens | Polycarbonate |
| Dial/pointer | Aluminum |
| Accuracy | ±1.6% of full scale |
| Connection | Bottom mount |
Working principle
The principle of vacuum pressure gauge is mainly based on the corresponding elastic deformation of the corrugated diaphragm box under the pressure of the measured medium. the deformation is amplified by the dial-gear transmission mechanism, the pointer fixed on the gear shaft indicates the measured value on the dial. this pressure gauge and pressure by the guide system (, spring tube, including joint current-limiting screws, etc.), gear transmission mechanism in several device ( pointer and dial) and the shell ( atlas, , table glass lid, etc.) of . The shell is usually of airtight construction, can effectively protect the internal parts from environmental influences and pollution intrusion. For the instrument filled with liquid in the housing, can resist the vibration of the working environment and reduce the influence of media pressure pulsation.
