What should I do when the water meter is not accurate? We should cut off the water meter from the following aspects. Is there a problem?
How can I tell if there is a problem with the water meter? If the water meter is inaccurate, please correct it with a measuring cup. How to check the accuracy of the water meter:
Comparative method
Use a standard watch (the mother watch) and a watch to be calibrated, connect them together, and conduct various tests according to the regulations through a certain pressure of water. At this time, the pointers of the two watches move together, and the pointer of the calibrated water meter indicates When the graduation line is consistent with the graduation line indicated by the pointer of the standard table, it means that the value of the water to be verified is correct, otherwise the test needs to be repeated until it is correct.
Causes of inaccurate water meters
1. Use inferior water meters
2. Water quality problems
3. Use the water meter that exceeds the service life and the water meter that does not carry out periodic verification
4. Improper installation of water meters
How to choose a water meter:
Because the stability and durability of the water meter's working performance under common flow rates are the best, it is more in line with the design requirements. If there is a margin for the water pipe considering the future water passing capacity, you can choose a water meter with a lower caliber specification. If the pipeline with a diameter of 200mm is insufficient in flow, a water meter with a diameter of 150mm can be installed. When the flow rate increases to the normal flow of the pipeline with a diameter of 200mm in the future, the water meter of the same diameter can be replaced.
Large-scale water-consuming industrial users can choose a large-diameter water meter, or use several relatively small-diameter water meters in parallel, so that individual faulty water meters can be repaired without affecting the normal water supply of users. or change the table.
Due to various reasons, in many occasions, the water quality that flows through the water meter and is interrupted by water is not as clean and ideal as 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 piping design of the water meter, there is a need to consider when choosing a water meter or flowmeter that can adapt to such water quality.