Large-caliber water meter installation specifications‌ mainly include the following aspects:‌
‌Choose the appropriate water meter model‌: Choose the appropriate water meter model according to the usage scenario. Large-caliber water meters are usually used in large water-using places, such as residential areas, enterprises, institutions and industrial parks. When choosing, factors such as the metering level, flow range and installation direction of the water meter should be considered.

‌Preparation before installation‌: Before installing the water meter, it is necessary to ensure that the inside of the pipe is clean to prevent debris from entering the water meter and causing damage. At the same time, the location of the water meter should be avoided from sunlight exposure, freezing, pollution and flooding, and it should be convenient for disassembly and maintenance.

‌Installation position and direction‌: The water meter should be installed in a vertical direction to ensure accurate measurement. The water flow direction should be consistent with the direction indicated by the arrow on the water meter to avoid damage to the internal parts of the water meter caused by backflow and steam backflow.

‌Straight pipe section requirements‌: Sufficient upstream and downstream straight pipe sections must be ensured during installation. Usually, a straight pipe section of 10 times DN should be left before the meter and 8 times DN should be left after the meter to ensure the accuracy of the measurement.

‌Protective measures‌: Valves and filters should be installed before and after the water meter, and a check valve should be installed after the meter to prevent impurities from entering the water meter and protect its normal operation. In addition, the temperature sensor should be installed in the temperature measuring hole of the meter body and sealed with lead, and the lead wires should not be increased, decreased or changed at will.