What happens when the water meter is installed backwards?

When the water meter is installed backwards, the water consumption value will be inconsistent with the actual situation. If the water department decides that it is illegal to change the water meter, it will be punished.

If the water meter has anti-reverse function, it can be used normally. If not, the water meter number will be reversed from 0000/9999/9998! Suggested replacement direction.

If you find that the water meter is installed backwards, you should correct it immediately.

The correct installation method is: the water meter should be installed so that the direction on its watch case is consistent with the flow direction of water in the pipeline. The location of the water meter device should be as convenient as possible for reading and changing meters, so as to prevent exposure and cold air from hitting it directly.

Extended data:

Water meter terminology:

Minimum flow (Q 1): The indicated value of the water meter is required to meet the minimum flow in maximum permissible error.

Boundary flow (Q2): the flow that occurs between the ordinary flow Q3 and the minimum flow Q 1. The flow range is divided into "high area" and "low area" with specific maximum permissible error.

Ordinary flow (Q3): the maximum flow under rated conditions. At this flow rate, the water meter should work normally and meet the requirements of maximum permissible error.

Overload flow (Q4): The maximum flow that requires the water meter to meet the requirements of maximum permissible error in a short time, and then can still maintain metering characteristics under rated working conditions.

Pressure loss (Δ P): At a given flow rate, there is a water meter in the pipeline, resulting in head loss.

References:

Baidu encyclopedia-water meter