Guide to the use of utility pressure gauges: How to ensure the accuracy and safety of equipment

In water, gas, electricity, heating and other systems, utility pressure gauges are a common and important instrument used to monitor and control the pressure in the system. Due to its critical importance to system safety and stability, ensuring the accuracy and safety of pressure gauges has become a core task in equipment management.

1. Choose the right pressure gauge

Choosing the right pressure gauge is the first step to ensure its accuracy and safety. According to the working environment, media type, pressure range and accuracy requirements of the utility, choose the pressure gauge type that matches it. Common pressure gauges are mechanical and digital. Mechanical pressure gauges are suitable for most simple monitoring occasions, while digital pressure gauges can provide higher accuracy and more functions, such as data storage, remote monitoring, etc.

In addition, the pressure range of the pressure gauge should be selected according to the actual working pressure of the utility. Usually, a pressure gauge with a rated pressure range slightly higher than the maximum working pressure of the system should be selected to avoid damage to the pressure gauge due to overpressure.

2. Correctly install the pressure gauge

The installation location of the pressure gauge directly affects the measurement accuracy and long-term stability. First, the installation should avoid high temperature, corrosive gases and areas with strong vibration to prevent damage to the instrument. When installing, the pressure gauge should be perpendicular to the pipeline to ensure that the pressure of the liquid or gas can be accurately transmitted to the inside of the instrument.

Secondly, pay special attention to the sealing of the connectors during installation to prevent leakage. Pressure fluctuations or instantaneous shocks in the pipeline system may also affect the pressure gauge, so suitable shock absorbers or buffers should be installed to ensure the stability of the measured value.

3. Regular maintenance and inspection

In order to ensure the long-term accuracy and reliability of the pressure gauge, regular maintenance and inspection are essential. At regular intervals, the mechanical part of the pressure gauge should be checked for wear, corrosion or other damage. For electronic pressure gauges, the battery power and circuit connection should be checked for normality.

At the same time, the pointer or display of the pressure gauge should be checked regularly to ensure that it can still accurately reflect the system pressure. If inaccuracies are found, they should be calibrated or replaced in time.

4. Calibration and verification of pressure gauges

The calibration of pressure gauges is the key to ensuring their long-term accuracy. The calibration of utility pressure gauges should be based on national or industry standards, and usually requires comparison and verification with a standard pressure source. Regular calibration can effectively prevent the deviation of measured values due to zero drift or error accumulation of the pressure gauge during use.

The calibration cycle should be determined according to the frequency of use and environmental conditions. Generally speaking, pressure gauges that are frequently used and have harsh working environments need to be calibrated more frequently.

5. Prevent pressure gauge damage and misoperation

In public facilities, pressure gauges are often exposed to complex environments, and factors such as overload or impact may cause them to be damaged. To avoid this, protective devices such as pressure reducing valves and isolation valves can be installed to prevent the system pressure from exceeding the instrument’s tolerance range.

In addition, operators should receive professional training to understand the correct use of pressure gauges to avoid instrument damage or misreading due to improper operation.

6. Fault diagnosis and emergency treatment

When the pressure gauge is abnormal, fault diagnosis should be carried out in a timely manner. For example, if the pressure gauge pointer shakes abnormally, it may be caused by unstable airflow or pressure shock in the pipeline; if the display is unstable, it may be due to electronic component failure. Take corresponding repair or replacement measures for different types of faults.

At the same time, the stainless steel utility pressure gauge should have an emergency handling mechanism, such as being able to shut down in time or take emergency pressure reduction measures when an alarm of overpressure or underpressure occurs to ensure the safe operation of the system.

The role of unility pressure gauge is crucial. Correct selection, installation, maintenance and calibration can effectively ensure the accuracy and safety of the equipment. Regular inspections and timely handling of potential faults can extend the service life of pressure gauges, ensure the stable operation of public facilities, and avoid system failures or safety accidents caused by abnormal pressure. Only by paying attention to these links can we ensure that public facilities operate in an efficient and safe environment.