I have a special situation where I'll be testing pumps on a combined domestic/fire water supply. Water is in a ground level tank, multiple pumps "blue" arranged to start sequentially as demand increases. Some of these blue pumps are designated as fire pumps and have higher flow characteristics. Problem is there is no test header and the testing will have to be performed without shutting down the water system.
My suggestion is to do the testing at a low demand period but use clamp-on type flow measuring devices at the pump discharge. Compare the hydrant flow to the ultrasonic flow to identify the simultaneous domestic demand + leakage. When I contacted FM about this they did not have any objection to this technology but said no manufacturer had ever submitted this technology for approval. I know it's common in the industrial setting but I am wondering if any of you "red" pump people have ever come across an application? Bill Brooks William N. Brooks, P.E. Brooks Fire Protection Engineering Inc. 372 Wilett Drive Severna Park, MD 21146-1904 410-544-3620 410-544-3032 FAX 412-400-6528 Cell _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
