Electromagnetic diaphragm metering pumps are widely used in various industrial applications where precise dosing, delivery, and control are essential. These pumps are commonly found in industries such as ceramics (for ceramic pastes), metallurgy (for metal pastes and process additives), mining (for coal slurry and magma), cement plants (for grinding aids), and boilers (for scale inhibitors and preservatives). They are also used in water treatment for acid/alkali, PAC/PAM, and sludge transportation; in the food and beverage industry for additives and ingredients; in petrochemicals for process media; in battery manufacturing for nickel sulfate; in paint and coatings for raw material handling; in textile printing and dyeing for bleaching agents; in waterworks for lime and flocculants; in papermaking for acids, alkalis, bleach, and bactericides; and in power plants for process aids.
Key features of electromagnetic diaphragm metering pumps include an electromagnetic drive design, which ensures a simple and reliable structure. The flow range is typically 0–50 L/h with a maximum pressure of 16 bar. These pumps offer adjustable stroke speed, manual or automatic control options, and the ability to accept external pulse signals or 4–20 mA input for flow regulation. They support programmable control for multiple materials and can adapt to different pumping requirements. The pump head is designed with a fluorine-containing composite membrane that makes it suitable for a wide range of applications.
The system includes an export multi-function valve that allows setting of release pressure, anti-siphon function, back pressure control, and assistance in starting. Installation is straightforward, as it comes with a foot valve, injection valve, and inlet and outlet hoses.
Main series include DFD, DP, and DM. These pumps are ideal for applications involving recycled water, reverse osmosis, swimming pool water treatment, and wastewater treatment. With a maximum flow of 50 L/h and a pressure capacity of 16 bar, they provide efficient and accurate dosing.
The AndOSE metering pump represents a significant advancement in diaphragm pump technology. It features a high-performance diaphragm pump head utilizing Italian patent MARS technology (an automatic mechanical charging system). This innovation combines the advantages of traditional pump heads while eliminating the need for a material-side disk diaphragm guard. As a result, the pump head offers the "direct through" characteristics of a tubular diaphragm, low NPSH (net positive suction head) requirements, and enhanced protection for the diaphragm. This design extends the diaphragm’s lifespan and prevents the accuracy loss often seen in conventional metering pumps over time.
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