Firstly, from the appearance of the water meter well. Low-quality water meter wells typically have uneven paint and lack a protective coating. The interior is extremely rough, with a core made of recycled harmful plastic, and the copper cover is thin and narrow.
Next, when it comes to water meter glass, counterfeit versions are typically made of ordinary glass, whereas the standard glass should be tempered glass.
Thirdly, a more direct method is to compare the weights. Counterfeit water meters are significantly lighter than those of good quality.
Furthermore, the state explicitly stipulates that water meter wells must undergo mandatory inspections by the metrology department upon installation, and lead must be inspected. All non-compliant products are prohibited from installation and use.
When selecting the diameter of a water meter well, one must not only consider the pipe diameter at the installation location but also take into account the size of the flow used frequently to choose a suitable diameter water meter well. It is preferable to have the frequently used flow close to or less than the required flow of the water meter well.
During installation, remove any debris such as cotton waste and ores from the pipes to prevent clogging of the filter mesh. Otherwise, it may increase the value error and affect water supply.
3. Liquids inside the pipeline that are corrosive or at high temperatures can cause the core to deform; it is recommended to avoid using this water meter well.
The water meter well should be installed horizontally (except for vertical water meter wells, in which case the scale should face upwards, and the arrow on the meter case should align with the direction of water flow.)
5. Water meter wells are precision measuring instruments. During use, they should be protected from strong external forces affecting the body. Users are not allowed to tamper with the lead seal or disassemble internal components. If there is a suspicion of excessive measurement error, the relevant department may be reported for testing.
