/May I ask whether it is possible to adjust the flow rate manually on-site when the metering pump is out of service due to a fault?
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As the title suggests, considering the possibility of a failure in the metering pump, if a certain pressure is maintained in the pipeline, can the pipeline flow rate be adjusted using the knob on the metering pump?
This post was last edited by HEJIYUER on 2015-11-5 21:39, version 1. A metering pump is a positive-displacement pump; it’s like the engine of a car – when it stops, the gears in the transmission do not change the flow rate, as no new flow can be drawn in. 2. The pressure of a metering pump is determined by the user; just like in a reciprocating compressor, you can increase the outlet pressure of the compressor only by raising the pressure at the downstream user’s end. As soon as the pump stops, its outlet is blocked by the pressure downstream. @jiaguoyun
What’s the fault? It’s best to fix it first; isn’t it worthwhile to adjust the flow rate as well?
The purpose of this is that in case the metering pump fails, I don’t want the dosing system to be affected; I hope that by using a manual method, it will still be possible to maintain a certain flow rate. Is this feasible?