The water meter check valve can effectively prevent water backflow, thereby avoiding the water meter from idling due to water flow backflow and ensuring the accuracy of measurement. In addition, it can also reduce the frequency of water meter rotation, effectively solving the problem of water meter rotation caused by pressure fluctuations. When the pressure inside the water pipe increases and the water is compressed, the water meter will rotate in the positive direction; When the pressure drops, the check valve closes and the water meter does not rotate. Therefore, as long as the pressure does not exceed the pressure setting of the check valve, the water meter will not rotate again, greatly controlling the frequency of rotation of the water meter.

The water meter check valve only allows water in the water pipe to flow in one direction. When fluid pressure acts in the same direction, the valve disc will open; If the fluid flows in the opposite direction, the valve disc will automatically overlap, cutting off the flow of water and preventing the backflow of tap water. Installing a check valve in front of the water meter can effectively prevent damage to the water meter due to backflow, especially to prevent the backflow phenomenon from causing damage to the internal structure of the water meter, thereby affecting its normal measuring function.

Installation precautions

Check appearance and brand: Ensure that the appearance of the check valve is undamaged, the brand is reliable, and meets installation standards.

Conduct strength and sealing tests: Before installation, check valves can undergo strength and sealing tests to ensure their quality is qualified.

Correct installation: Install according to the installation instructions or professional guidance to ensure that the check valve can work properly.

The working principle of the water meter check valve is based on the action of fluid pressure. When a fluid (such as water) flows in the normal direction, the fluid pressure will open the valve disc, allowing the fluid to pass through. When the fluid attempts to flow in the opposite direction, the valve disc will automatically overlap under the action of fluid pressure, cutting off the reverse flow path of the fluid and thus preventing the backflow of water flow.