Marley
/
Sigma Steel
Cooling Tower
/
Engineering Data : Schematic
6
Use this data for preliminary layouts only.
Obtain current drawing from your Marley sales
representative.
The UPDATE web-based selection software
—available at spxcooling.com—provides
Sigma Steel model recommendations based
on customer's specific design requirements.
A
BAYS AT 4'-0" =
L
C
DIAMETER FAN
4
1
/
2
"
4
1
/
2
"
COLUMN
COLUMN
CL
CL
COLUMN
CL
W
OUT
-T
O-OUT OF T
OWER
NOTE
1
Use this bulletin for preliminary layouts only.
Obtain cur-
rent drawings from your Marley sales representative.
2 Last number of model indicates number of cells. Change as
appropriate for your selection. Primary engineering data is per
cell.
3 Height shown is from base of tower columns to top of fan
cylinder.
4 Pumping head shown is from base of tower columns.
H
B
TOP OF
FAN CYLINDER
BASE OF
TOWER COLUMNS
FAN DECK
13'-1
1
/
8
"
Tower
Model
GPM
per cell
Dimensions
Maximum
Motor
hp
Average
Pumping
Head
W
L
H
A
B
C
121-111
500-4500
25'-4"
12'-0"
19'-1
1
⁄
8
"
3
6'-0"
120"
60
17.3'
122-111
650-6000
27'-4"
16'-0"
19'-1
1
⁄
8
"
4
6'-0"
144"
60
17.4'
123-111
650-6000
29'-4"
16'-0"
20'-1
1
⁄
8
"
4
7'-0"
168"
75
17.4'
124-111
1000-7500
29'-4"
20'-0"
20'-1
1
⁄
8
"
5
7'-0"
168"
75
17.4'
125-111
1000-7500
33'-4"
20'-0"
20'-1
1
⁄
8
"
5
7'-0"
216"
75
17.5'
126-111
1000-9000
33'-4"
24'-0"
20'-1
1
⁄
8
"
6
7'-0"
216"
100
17.5'
127-111
1500-10500
33'-4"
28'-0"
20'-1
1
⁄
8
"
7
7'-0"
216"
100
17.6'
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