Can the pipe behind the water meter be changed in diameter? Is there any regulation that can not be changed behind the water meter?
The water meter installation location should fully consider the user construction plan should be installed in the user outside the walls without contamination and damage, avoid the roadway, garbage removal, septic tanks and other pollution sources.
The surface of the water meter is less than 0.2m after the surface of the water is lower than that of the other, so that it can be copied easily.
DN80MM and above water meter shall be provided with water meter filter; flange type water meter should be equipped with telescopic compensation equipment or rubber soft joint.
Before and after the water meter, the length of the straight pipe section shall be set according to the specifications. The length of the water gauge is ten times as long as before the table. The length of the pipe diameter is five times after the meter. The installation of the water meter shall be kept horizontal and shall not be tilted, oblique or reversed installed.
The tables and tables shall be flat or slightly higher than the ground (generally no more than 5cm) after the formation. The structure shall be complete and the covers shall be matched. The size of the masonry shall meet the needs of the replacement or maintenance of the water meter
