The manufacturing process of mechanical water meters mainly includes the following steps‌:

‌Casting‌: The water meter's case, cover, pipe and nut parts are made by casting. This step involves drying the raw materials and then casting them by injection molding‌.

‌Machining‌: The cast parts are machined to ensure their accuracy and surface quality. This step includes fine processing of parts such as the case, cover, pipe and nut‌.

‌Electrostatic spraying‌: The case is electrostatically sprayed to enhance its corrosion resistance and aesthetics‌.

‌Assembly and debugging‌: The processed parts are assembled, including the installation and debugging of the movement. After assembly, a water pressure test is carried out to ensure the sealing and durability of the water meter‌.

‌Inspection and testing‌: The assembled water meter is subjected to strict quality inspection, including indication error and sealing certification, electromechanical performance testing, aging testing, etc. These tests ensure the metering accuracy and durability of the water meter‌.

‌Mandatory inspection‌: According to relevant regulations, water meters must undergo mandatory inspection before leaving the factory to ensure that their measurement accuracy meets national standards‌.

Through the above steps, the entire process of mechanical water meters from raw materials to finished products is strictly controlled and tested to ensure that their quality and performance meet the standards.