In industries such as chemical, food, and pharmaceutical, metering pumps play an irreplaceable role, and mechanical diaphragm metering pumps are gradually becoming the preferred choice in these sectors.   1. What is a mechanical diaphragm metering pump?It is a reciprocating positive displacement pump designed for transferring water, water-like chemical liquids, as well as corrosive and non-corrosive fluids with viscosities up to 1,500 cP. Flow rate is adjustable within the range of 0–100%. The product complies with Chinese National Standard GB/T7782-2020 and International API 675 Standard.   2. Working PrincipleThe motor delivers stable power, which is reduced in speed and increased in torque through a worm gear pair. The rotational motion is then precisely converted into linear reciprocating motion of the push rod via an eccentric mechanism, driving the mechanical diaphragm to achieve periodic elastic deformation. During contraction, the working chamber forms negative pressure, drawing in the medium. During expansion, positive pressure is generated, discharging the medium. Throughout the process, the flow remains stable and controllable, enabling high-precision metering and transfer.   Applications: Features: Suitable for industries such as chemical processing, environmental protection, food, pharmaceuticals, wastewater treatment, municipal water supply, and new materials. Diaphragm-type static seal structure Capable of precise dosing of various chemicals, including coagulants, bactericides, disinfectants, polymers, softeners, etc. Push rod directly drives the diaphragm Applicable for acid/alkali dosing, pH control, quantitative transfer of corrosion inhibitors, oxygen scavengers, and various process aids. Diaphragm material and construction resist wear and aging   0–100% stepless flow adjustment   Multiple pump head material options available   Optional double diaphragm and diaphragm rupture alarm device   PLC intelligent control system can be configured   Elephant Machinery's diaphragm metering pump, with its special mechanical transmission and diaphragm working structure, achieves zero leakage in medium delivery, ensuring stable and high-precision quantitative transfer. It is adaptable to various types of process media, combining safety and operational versatility. It meets the dosing and quantitative transfer requirements across multiple industries, making it a key delivery device in industrial production processes.