Looking for recommendations for metering pumps or chromatography pumps with a precision of ≤1%, and a flow rate ranging from 1 ml to 3000 ml per hour
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I’m a beginner. For experimental purposes, I’m looking for a suitable metering pump (dose pump) or chromatography pump. The desired dosage volume should be between 1 ml and 3000 ml per hour, with an accuracy of ≤1%. The price should be around 3,000 yuan, and the pump should be compact in size. Therefore, I’m seeking recommendations from experts; thank you very much! (For example: if I need to measure 780 ml of liquid, I don’t have to use a measuring cylinder; I can simply use a dosing pump to do it.) I also searched for some products online before, and found that some peristaltic pumps can be used as dosing pumps as well, with very good dosing accuracy. I’m wondering whether the flow of liquid in the tube at the outlet end of the peristaltic pump could affect the accuracy of the measured volume by more than 1%; I’m not sure if my understanding is correct.
I hope the precision error is ≤1%; please correct the content in the initial post
Miltonroe should be this small, right?
The MitoRo MD series, being the smallest series, is also unable to achieve 1 mL/h – it’s simply too small. I’ve seen a special one, 50 mL/h – it’s incredibly difficult to make. For metering pumps, at least 200 ml/h is required to make things easier; 500 ml/h or more allows for even better performance.
Iwaki seems to have a minimum flow rate of 30 ml/h; the range for yours, from 1 ml to 3000 ml, is too wide
Hello, I’m sorry; my expression wasn’t very clear. What I mean is, I’m looking for a metering pump/dosing pump whose liquid delivery rate can range from 3 to 5 liters per hour, with an accuracy of within 1 ml. Do you know of any suitable pumps like this? For example, if I want to take a sample of 780 ml, I just set it to 780 ml and press the sampling button – that’s it. Thank you
Hello, I’m sorry; my expression wasn’t very clear. What I mean is, I’m looking for a metering pump/dosing pump whose liquid delivery rate can range from 3 to 5 liters per hour, with an accuracy of within 1 ml. Do you know of any suitable pumps like this? For example, if I want to take a sample of 780 ml, I just set it to 780 ml and press the sampling button – that’s it. Thank you
This precision metering pump cannot achieve that level of accuracy; 0.5% accuracy is essentially the limit for metering pumps. For a flow rate of 3000 ml/h, 0.5% corresponds to 15 ml. The accuracy of mass flow meters is only 0.2%; to measure your extraction volume accurately, weighing is likely required. I suggest looking into a pump; it might not work, but I just know that such pumps exist in the medical field – injection pumps. The hose-type ones probably won’t meet your requirements, but the syringe-type ones might do.
I have a small magnetic metering pump, but its repeatability accuracy is 5%; I was wondering if you might consider it? Compact in size, with variable frequency speed control