Which electric pump is allowed to run idle?
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Which electric pump is allowed to run idle? Used for pumping waste liquid; it has a slightly thick consistency, with a temperature below 40 degrees. A few minutes of idling is allowed. Friends who have used it as well as manufacturers are welcome to make recommendations: D
There are three types of pumps: one is the WFB sealless self-priming pump, the second is the double-end face flushing mechanical seal pump, and the third is the submersible sealless pump. Personally, I suggest starting with the electronic control system as the best approach. First, it has the lowest cost; second, it is the most energy-efficient.
I’m not sure if the Roots pump is suitable
Run without a medium; focus on protecting the mechanical seal. Pumps with mechanical seals are not allowed; if the mechanical seal is worn out due to dry friction, it will become unusable very quickly.
Electric diaphragm pumps, hose pumps, and the like can all be used
Double-end flushing pumps are also not allowed to run idle. Put it another way, most pumps that lack mechanical seals and self-lubrication can run idle.
Can’t it work either if the WFB runs idly for a long time? The intermediate graphite bearings are also prone to high temperatures