6 tips to help you install the pressure gauge perfectly
Is your pressure gauge installed correctly? Incorrect installation of the pressure gauge can cause premature failure of the pressure gauge and prevent you from troubleshooting problems in the equipment or process. Don't let this happen in your factory. Next time you install the meter, please use these six tips to install the meter correctly.
1. Choose the right instrument
Before pulling out the wrench, first make sure you have a pressure gauge suitable for the application. The pressure gauge you choose must meet the following requirements:
Expected pressure range to be measured
Process medium or fluid
Process temperature
Vibration level
Even if you install the gauge perfectly, if the gauge is not suitable, you may encounter the same problems as before the installation.
2. Apply force through the wrench plane
After selecting the correct gauge, please pay attention to how to tighten the gauge. Do not turn the housing by hand, but apply force through the wrench flat surface. Applying force through the enclosure or junction box may damage the enclosure connection. Insufficient torque applied may cause leakage.
3. Reach an agreement
Before sealing, pay attention to the thread type on the gauge. If the pressure gauge has parallel threads, use sealing rings and gaskets for sealing. If the pressure gauge has tapered threads, it is recommended to use other sealing methods, such as PTFE tape. This is standard practice for any pipe installer, because tapered threads by themselves cannot provide a complete seal.
4. Use a jacket or union nut with straight threads
When using tapered threads, the installer can easily adjust the gauge even if sufficient torque is applied. This makes it easy to locate the meter surface. However, when using straight threads, the direction of the surface cannot be adjusted. Therefore, a clamping sleeve or union nut should be used to connect the meter. These will allow you to correctly position the pressure gauge after installing the socket on the sealing ring or gasket.
5. Make room for the explosion
For personnel safety, some instruments are equipped with blowout preventers. If the pressure gauge reaches the point of rupture due to dangerous overpressure, the force generated by the rupture will pass directly through the back of the pressure gauge, not in the direction of anyone standing in front of it.
For these types of products, it is important that the back of the meter is not blocked by debris and dirt. Make sure to leave at least 15 mm of free space behind the blowout preventer.
6. Vent the instrument box
Some meters have a small valve on the housing. Users who do not understand the purpose of the valve will be confused as to why the valve is included. During transportation, liquid-filled pressure gauges may experience temperature changes, causing internal pressure to build up. This may cause the meter pointer to deviate from zero. When installing the pressure gauge, open the compensation valve to relieve the pressure. Then it should be closed again to prevent any outside entry. After installing the pressure gauge, set the compensation valve from closed to open.
6 tips to help you install the pressure gauge perfectly
Is your pressure gauge installed correctly? Incorrect installation of the pressure gauge can cause premature failure of the pressure gauge and prevent you from troubleshooting problems in the equipment or process. Don't let this happen in your factory. Next time you install the meter, please use these six tips to install the meter correctly.
1. Choose the right instrument
Before pulling out the wrench, first make sure you have a pressure gauge suitable for the application. The pressure gauge you choose must meet the following requirements:
Expected pressure range to be measured
Process medium or fluid
Process temperature
Vibration level
Even if you install the gauge perfectly, if the gauge is not suitable, you may encounter the same problems as before the installation.
Install pressure gauge
2. Apply force through the wrench plane
After selecting the correct gauge, please pay attention to how to tighten the gauge. Do not turn the housing by hand, but apply force through the wrench flat surface. Applying force through the enclosure or junction box may damage the enclosure connection. Insufficient torque applied may cause leakage.
Install pressure gauge
3. Reach an agreement
Before sealing, pay attention to the thread type on the gauge. If the pressure gauge has parallel threads, use sealing rings and gaskets for sealing. If the pressure gauge has tapered threads, it is recommended to use other sealing methods, such as PTFE tape. This is standard practice for any pipe installer, because tapered threads by themselves cannot provide a complete seal.
Install pressure gauge
4. Use a jacket or union nut with straight threads
When using tapered threads, the installer can easily adjust the gauge even if sufficient torque is applied. This makes it easy to locate the meter surface. However, when using straight threads, the direction of the surface cannot be adjusted. Therefore, a clamping sleeve or union nut should be used to connect the meter. These will allow you to correctly position the pressure gauge after installing the socket on the sealing ring or gasket.
Install pressure gauge
5. Make room for the explosion
For personnel safety, some instruments are equipped with blowout preventers. If the pressure gauge reaches the point of rupture due to dangerous overpressure, the force generated by the rupture will pass directly through the back of the pressure gauge, not in the direction of anyone standing in front of it.
For these types of products, it is important that the back of the meter is not blocked by debris and dirt. Make sure to leave at least 15 mm of free space behind the blowout preventer.
6. Vent the instrument box
Some meters have a small valve on the housing. Users who do not understand the purpose of the valve will be confused as to why the valve is included. During transportation, liquid-filled pressure gauges may experience temperature changes, causing internal pressure to build up. This may cause the meter pointer to deviate from zero. When installing the pressure gauge, open the compensation valve to relieve the pressure. Then it should be closed again to prevent any outside entry. After installing the pressure gauge, set the compensation valve from closed to open.
