Is a frequency converter needed to regulate electromagnetic metering pumps?
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Currently, manufacturers such as ProMinent and Mitrado offer electromagnetic metering pumps. These pumps incorporate regulators that allow for the adjustment of the pump’s stroke length and stroke frequency. Specifically, what is the principle behind adjusting the stroke frequency? Is it also variable frequency? Can the power supply for this type of electromagnetic metering pump be provided by a frequency converter? Additionally, I noticed that some of ProMinent’s diaphragm metering pumps with motors are able to adjust the stroke frequency even without an external frequency converter. How is this achieved? Usually, changing the stroke frequency is only possible through an inverter; could it be that the pump itself already has an inverter integrated?
Have none of the pump experts used this? Push on your own.
This post was last edited by yuchenchf on 2017-3-27 at 16:00 regarding the domestic production of NIKKISO metering pumps. Good luck to you.
This post was last edited by yuchenchf on 2017-3-27 at 16:09. I took a close look at your question. First, you need to understand one thing. Functions of the electronic board. Electromagnetic metering pumps operate thanks to a circuit board (similar to a computer’s CPU and motherboard). The code information contained in this circuit board can be regarded as a type of variable-frequency motor, which enables control over the number of strokes as well as the flow rate. (Why don’t you think about it: why does an inverter motor change frequency?) I assume you’re smart and understand.) The second question: With a regular three-phase 220V or 380V motor, how is it possible to achieve variable frequency operation using Pro metering pumps, or our NIKKISO pumps? It’s like, you are you, you just are you, and I am me. I can’t turn into anyone else. How can a regular motor suddenly become variable-frequency without any reason? My answers might not be relevant; feel free to join us in the discussion. There is no end to learning.