The national standard for the installation of water meters: it must be carried out in strict accordance with the requirements of the national standard GB/T778.2-1996 of the People's Republic of China.
1. Before the water meter is installed, the sediment in the pipeline should be drained to prevent the water meter from being blocked;
2. It is necessary to see the direction of the water flow in the water meter to prevent the reverse;
3. During installation, the length of the straight pipe at the water inlet end of the water meter shall not be less than 10 times the length of the water meter diameter, and the length of the straight pipe at the water outlet end shall not be less than 5 times the length of the water meter diameter;
4. The installation location should be considered to avoid places where the drainage is not smooth in corrosive places;
5. A water stop valve should be added behind the installed water meter to prevent the water in the pipeline behind the water meter from flowing back, which may cause damage to the water meter or contaminate the water supply network.
