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What do the values of a diaphragm pump mean?

2019-10-30View Original

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I have installed a new diaphragm pump. There is a label on the pump, as shown in the picture; I’m not sure what the numbers on it mean Is it possible to adjust the flow rate? Please, experts, tell me
Reply #22019-10-31
The outer ring corresponds to the percentage of flow rate, while the inner ring represents the piston stroke distance.
Reply #32019-10-31
This is a metering pump; at most, it’s a diaphragm metering pump. How did you call it a diaphragm pump? :lol
Reply #42019-10-31
Plunger diaphragm metering pump: the outer ring shows the percentage of the rated flow rate, while the inner ring indicates the distance traveled by the plunger in one back-and-forth stroke, expressed in mm
Reply #52019-12-09
Similar to shielded pumps, it should be an indicator for the wear of the motor bearings

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