Water meter check valve, also known as check valve or one-way check valve, is an automatic valve installed near the water meter to prevent water flow from reversing. The water meter check valve can ensure that water in the pipeline can only flow in one direction, effectively preventing the backflow of water flow. By preventing backflow of water flow, the water meter check valve can reduce the self rotation phenomenon caused by the reverse flow of water flow, thereby ensuring the accuracy of water meter measurement. Preventing backflow of water flow can also prevent damage to pipeline equipment caused by reverse impact of water flow, extending the service life of the equipment.

The check valve installed behind the water meter can effectively prevent the backflow of water flow from the user end into the public water supply system, which is extremely important for protecting the safety of the public water supply system. Especially in high-rise buildings, the water quality at the user end may have an impact on the overall water supply system, and check valves can effectively prevent this situation from occurring.