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How to choose metering pump it?
What information do you need to properly select a metering pump? First, you should determine the flow rate of the liquid being measured. Second, understand the main characteristics of the liquid, such as its chemical corrosiveness, viscosity, and specific gravity. Third, consider the system's back pressure, which affects how well the pump can push the fluid through the system. Fourth, evaluate the appropriate suction height to ensure the pump can draw in the liquid effectively. Finally, think about additional features like analog or pulse control, flow monitoring, and timer functions that may be necessary for your application.
What are the key advantages of an electromagnetic-driven metering pump? These pumps have only one moving part—the armature shaft—making them highly reliable. The fewer moving parts a pump has, the less likely it is to fail. Electromagnetic pumps are ideal for low-flow, low-pressure environments and perform well even when there are fluctuations in the power supply. They also offer flexibility: you can either adjust the stroke length at a fixed frequency or change the frequency while keeping the stroke length constant.
One major benefit is that, once calibrated, the dosing per stroke is known. This allows for precise calculation of the total dosage (dosing = dosing per stroke × frequency). The total dosage is directly proportional to the frequency, so 50% frequency means 50% dosing. With external pulse or analog control, the dosage can be adjusted from minimum to maximum within just one second. Plus, this method is significantly more cost-effective than motor-driven stroke length adjustments.
If you want to learn more about metering pumps or need expert advice, Shengzhou Weidelong Pump Co., Ltd. is here to help. We provide high-quality solutions tailored to your needs. Contact us today to discover how we can support your pumping requirements.