NFPA 20 section 5.14.6.3 talks about elbows turning into pump
suction. The section talks about "horizontal split case" pumps. I am
reviewing a set of plans that is using a vertical in-line pump and
has the suction line coming down from the ceiling and turning into
the pump. I was always under the assumption that a vertical in-line
pump is a horizontal split-case pump turned on end so it the minimum
distance would apply. His argument is that it is not horizontal
therefore it wouldn't. Who's right?
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
860-535-2080
www.fpdc.com
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