1. In order to ensure the most accurate measurement, install a straight pipe section with the same cross-section as the pipe at least 5 times the gauge diameter before the water meter inlet, and install a straight pipe section at least 2 times the gauge diameter at the water outlet;
2. The connecting pipes upstream and downstream of the water meter cannot be reduced in diameter;
3. It is recommended to install flow control equipment (such as valves) and filtering equipment;
4. The flange sealing ring shall not protrude into the pipeline or be dislocated.
