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Intermediate
6¼
[158.8]
7 DIA
[177.8]
R
7 DIA
[177.8]
29
9
/16
[750.9]
SGOback
Steam
supply
Skim
tapping
7¾ [196.9]
10¼ [260.4]
1⅛
[28.6]
3¾ [95.3]
4⅜ DIA
[111.1]
burner
opening
SGO“A”front
9½ [241.3]
35⅝
[904.88]
26⅞
[682.6]
Water
Line
30
1
/16
[763.6]
SGOsidewithburner
Steam supply
piping 3-9
Steam supply
piping 6-9
7
3
/16 [182.6]
4
1
/16 [103.2]
14 Approx.
7 DIA
[177.8]
A
7 DIA
[177.8]
15½
[393.7]
L
B
20¼ [514.4]
Dimensions
Part number 550-142-330/0421
46
SGO
OIL-FIRED NATURAL DRAFT STEAM BOILER — SERIES 4 — Boiler Manual
SERVICETECHNICIANONLY—readandfollowcompletely.
Boilermodel
number
ABL
InchesmmInchesmmInchesmm
SGO-3
— — 13-1/2 342.9 16-7/8 428.7
SGO-4
— — 16-5/8 422.1 20 508.0
SGO-5
— — 19-7/8 504.9 22-1/8 587.2
SGO-6
19 482.6 23 584.2 26-1/4 666.7
SGO-7
22-1/8 561.8 26-1/8 663.4 29-3/8 746.2
SGO-8
25-1/4 641.4 29-1/4 742.9 32-1/2 825.5
SGO-9
28-3/8 720.9 32-3/8 822.4 35-5/8 904.7
Figure32 SGO boiler dimensions — inches (mm)
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