Low-flow, high-pressure acid-resistant pump
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We would like to use acid-resistant pumps, with the following requirements: Medium: 20% sulfuric acid (containing 1% nitric acid), at room temperature, without solid impurities. Head and flow rate: 20–30 bar, 4–8 m3/hr. We are not sure which manufacturers produce pumps that meet these requirements; we hope everyone can offer some suggestions.
This post was last edited by keerco on 2016-10-22 at 11:02; PVC and PTFE diaphragm pumps are available
It is recommended to use an acid-resistant metering pump, which can solve the problem.
For membrane filtration, plunger pumps can be used, but it’s not clear whether any domestic manufacturers are capable of producing them.
A diaphragm pump will do; it’s easy to use, easy to maintain, and not expensive
It’s mainly a material issue; metering pumps and rotary jet pumps can both be used
Hello, Engineer Li. I haven’t been to the Liangma River area yet. I will find time to visit you this week.
We have developed a plunger pump specifically for reverse osmosis, and I can send it to you for viewing. What is the inlet pressure? Diaphragm metering pumps can be used for this purpose; dual or triple diaphragm metering pumps are commonly in use. The downside is that they are large in size and expensive. Milton Roy, Lewa, B&L – all of them can handle heavy water, and they should all have relevant performance records.
Diaphragm metering pumps are suitable and do not leak.