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Table 2, Pressure Loss in Feet of Water
Figure 2, Typical Piping
NOTE: Isolation valves, vents, drains and other piping specialties are not shown, but are
required for a fully operational system.
IOM 1062
Pipe
Flow
Size Steel
gpm
in.
15
1
20
1
25
1
25
1 1/4
30
1 1/4
35
1 1/4
40
40
1 112
45
1 1/2
60
-
60
2
80
2
100
2 1/2
150
2 1/2
200
3
250
3
300
3 1/2
300
4
350
4
400
FLUID COOLER
WATER COOLED
CONDENSER
REFRIGERATION
COMPRESSOR
EVAPORATOR
WATER CHILLER
Direct Drive Fluid Coolers
Type "L"
Schedule 40 Steel
O.D. Copper
Head ft/100 ft
in.
Equiv. Length
1 1/8
17.6
1 1/6
30.2
1 1/8
1 3/8
11.5
1 3/8
16.3
1 3/8
21.8
1 3/8
1 5/8
13.0
1 5/8
16.5
1 5/8
2 1/8
7.9
2 1/8
13.7
2 5/8
8.5
2 5/8
18.6
3 1/8
10.7
3 1/8
16.5
3 5/8
11.1
4 1/8
5.9
4 1/8
7.9
4 1/8
10.2
EXPANSION
TANK
VENT AND
FILL VALVE
SHUT-OFF
VALVE
DIVERTING
VALVE
TXV
CHILLED WATER
HEAT EXCHANGER
FOR SUPPLEMENTAL
FREE COOLING
Copper Tube
Head ft/100 ft.
Equiv. Length
15.0
23.1
34.6
12.6
17.4
23.0
-
26.3
12.9
15.7
-
26.3
7.0
12.0
6.1
12.9
9.1
13.7
9.2
4.9
6.5
8.2
CIRCULATING
PUMP
SHUT-OFF
VALVE
9
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