PD pump with multiple destination!
PD pump with multiple destination!
(OP)
I am just thinking what will happen if I want to use my PD pump to discharge to different locations? (Chemical injection application)
As far as I know, discharge pressure of a PD pump is determined by dishcharge point pressure.
I think pump just confused which pressure should be picked up:)
Thanks
As far as I know, discharge pressure of a PD pump is determined by dishcharge point pressure.
I think pump just confused which pressure should be picked up:)
Thanks





RE: PD pump with multiple destination!
RE: PD pump with multiple destination!
RE: PD pump with multiple destination!
I've used this arrangement several times quite cleanly. The key elements involved using pressure compensated flow control valves to control the flow rate to each branch and a pressure relief valve to limit the maximum pressure. There is some obvious energy waste involved, but if the pressures in the several branches are reasonably similar, the wasted energy can be quite small. The use of a suitable adjustable speed drive for the pump can minimize the energy requirement if the total flow requirement varies substantially.
RE: PD pump with multiple destination!
I intended to add that in many cases, suitable manually adjustable pressure compensated flow control valves are usually available at quite modest costs. (These "cheap" valves will not usually handle anything but clean liquids.)
If necessary, you can always jack up the costs substantially by getting fancier control valves, computer control valves, etc.
RE: PD pump with multiple destination!