Jockey Pump Selection
Jockey Pump Selection
(OP)
Hi all,
I'm really confused about how to select a jockey pump, and i mean in terms of flow.
I would dearly appreciate if any one can give me some refrenced info. about this subject Or how to predict the expected leakage rates in a conventional commercial system.
I'm really confused about how to select a jockey pump, and i mean in terms of flow.
I would dearly appreciate if any one can give me some refrenced info. about this subject Or how to predict the expected leakage rates in a conventional commercial system.





RE: Jockey Pump Selection
But calculating the pimp capacity based on the above clause results in very low figures (may be couple of gpm). Therefore, as an industry practice, a Jockey pump of 25 to 30 gpm is seleceted for a main firewater pump of 2000 to 3000 gpm capacity (i.e. about 1% of the main pump capacity. Pumps of this capacity are easily available, designed and approved by NFPA-20.
RE: Jockey Pump Selection
The jockey pump shall be rated to supply a flow of 30 m3/hour to enable the use of one hydrant without starting the main diesel driven fire pumps.
RE: Jockey Pump Selection
If your jockey pump comes on more than every 4 hours it is probably operating to frequently. A chart recorder on the system will tell you how often it is running. You need to monitor this closely to see if the jockey pump is running too often and therefore, you have an unacceptable leakage rate.