ETL 1110-3-489
3 April 98
(e) Flow rate for boiler circulation pump:
kW ⋅ sec
q = qpipe + R 233.402
L
kW ⋅ sec
q = 0.1 kW + 1.58 L 233.402
= 368.875kW
L
sec
368.875 kW
Qp =
= 5.53 Lps (87.6 gpm)
kW ⋅ sec
16 K
4.1679
L⋅ K
7. Action. The guidance included in this technical letter will be used for the planning,
design and construction of new and renovated facilities.
8. Implementation. This letter will have routine application, as defined in paragraph 8c,
ER 1110-345-100.
FOR THE COMMANDER:
KISUK CHEUNG, P.E.
Chief, Engineering and
Construction Division
Directorate of Military Programs
8
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