Common problems and solutions for pressure gauges

Three common issues with pressure gauges during use:

1. The pressure gauge fan gear may experience wear after working for a period of time;

2. The pressure gauge pressure measurement system is subjected to instantaneous overpressure impact of the measured medium, causing the pointer to fail to return to zero or to rush below the limiting nail;

3. The instrument pointer does not return to zero after the system is depressurized.

Three methods to solve common problems with pressure gauges:

1. Increase the width of the contact surface of the fan-shaped gear and enlarge the contact surface (i.e. increase the gear module) to achieve the goal of increasing wear resistance and service life;

2. Install limit blocks on the movement of the instrument, and the pressure measurement system prevents the cylindrical and sector gears of the movement from easily disengaging when subjected to instantaneous impact, solving the problem of the pointer of the pressure gauge not returning to zero or being pushed behind the limit pin after being subjected to impact pressure;

3. Turn down the valve below the pressure gauge in the impact pressure measurement system.