If the pressure of the pipeline is too high or exceeds the normal use range, the water meter is damaged and not measured, or the water meter is interfered by flipping, refitting, disassembly, etc. and the water meter is not measured. At this time, the user needs to notify the water department to deal with it. Let us take a look today.
1. Select water meter specifications
When selecting the specifications, you should first estimate the size and range of the flow rate used under normal circumstances, and then select the water meter of the type with the most common flow rate closest to this value as the first choice. Because the stability and durability of the water meter's working performance under the common flow rate are the best, it is more in line with the design requirements. If the water pipe has a margin in consideration of the future water passing capacity, the caliber specification can be lower by one gear when selecting the water meter. If the flow rate of the 200mm diameter pipe is insufficient due to the current flow rate, a 150mm diameter water meter can be selected. When the normal flow rate of the 200mm diameter pipe is increased in the future, the same diameter water meter should be replaced. Large water-consuming industrial users can choose a larger-diameter water meter when choosing a water meter, or use several relatively small-diameter water meters in parallel, which can also repair individual faulty water meters without affecting the user's normal water supply. Or change the watch.
2. Select the type of water meter indication
Generally, the word wheel type is used to make the reading clear and easy to read. However, some people think that it is better to install a pointer type when the meter cannot be read at close range, because this type can judge the reading according to the geometric angle pointed by the pointer, without having to see the value on the scale cylinder division. In recent years, counters in the form of liquid seals have become popular because they overcome the shortcomings of ordinary counters that are hindered by the rust in water for a long time. The readings of remote water meters and prepaid water meters are displayed by the electronic device or collected and transmitted by the collector, but the readings of the base meter are still to be retained for comparison when there is a problem with the electronic device copied .
3. Consider the convenience of installation and maintenance
For large-caliber water meters, this is especially a consideration. Therefore, a water meter (such as a detachable water meter) that can be installed and replaced or maintained without stopping water can meet these requirements. The installation length and connection method of the water meter are also a factor to be considered. However, in recent years, some new water meters (including prepaid smart water meters) are not manufactured according to standards, and this may be different.
4. Consider the adaptability of water quality
For various reasons, the quality of the water flowing through the water meter and interrupted by water is not as clean as it is when it leaves the water plant, and sometimes contains some impurities (such as rust, sand, hemp, etc.). In this case, in addition to considering the installation of some filters and other measures in the design of the pipeline of the water meter, it is necessary to consider when selecting a water meter or flow meter that can adapt to such water quality.
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