Is it better to install the water meter check valve in front or behind?

For ordinary families, water meters are essential. Generally speaking, a water stop valve needs to be installed on the water meter, but many people don't know whether the water stop valve should be installed in front or behind. Let's see if the water meter check valve is installed in front or behind with Bian Xiao. By the way, what is the function of the water meter check valve? Interested friends come and have a look.

Install in front

A check valve should be installed in front of the water meter. The main function of installing a check valve in front of the water meter is to ensure the accuracy of water meter measurement and safeguard the interests of users.

Prevent backflow

The function of check valve is to only allow the medium to flow in one direction and prevent it from flowing in the opposite direction. Usually, this valve works automatically. Under the action of unidirectional fluid pressure, the disc opens. When the fluid flows in the opposite direction, the fluid pressure and the self-overlapping disc of the disc act on the valve seat, thus cutting off the flow.

Prevent the water meter from rotating.

The check valve installed on the watch can prevent water from flowing backwards and prevent the water meter from rotating. In this way, when the pressure rises, the water is compressed and the water meter rotates forward; When the pressure decreases, the check valve will automatically close and the water meter will not rotate. When the pressure rises again, the water meter will not rotate again as long as the pressure is not higher than the check valve pressure.