What are the reasons for the failure of diaphragm pressure gauge working? Next, we will analyze it in detail.

1. The diaphragm pressure gauge working has no indication.

the reason:

1. The shut-off valve on the pressure guiding pipe is not opened;

2. The pressure guiding tube of the pressure gauge is blocked;

3. Too much dirt in the pressure gauge spring pipe joint is blocked and clogged;

4. The spring tube is cracked;

5. The central tooth and the sector tooth are worn too much, so that they cannot mesh.

2. Diaphragm pressure gauge working pointer jitter.

the reason:

1. High pressure of the measured medium;

2. The installation position of the pressure gauge vibrates greatly.

3. The diaphragm pressure gauge working pointer is bounced or sluggish.

the reason:

1. The pointer of the pressure gauge is rubbed against the surface glass or scale;

2. The central gear shaft is bent;

3. There is dirt when the two gears mesh;

4. The movable screw between the connecting rod and the sector gear is not flexible.

4. After the pressure is removed, the diaphragm pressure gauge working pointer cannot be restored to zero.

the reason:

1. The pressure gauge pointer is bent;

2. Short hairspring force is insufficient;

3. The pointer of the pressure gauge is loose;

4. The transmission gear has friction.

5. Uneven pressure indication error.