Gardner Denver ELECTRA-SAVER II Service Manual page 13

OIL
IN
OIL
WATER
CONTROL
OUT
h------ /v"L"E'
I
I
#
1~~
WATER
HEAT EXCHANGER
OUT
\
t
"\
WATER
t
SHUTOFF
VALVE d
u
~
Ir
SEPARATOR AFTERCOOLER
t
L.
SERIES P~G WATER FLOW MUST BE
THROUGH AFTERCOOLER FIRST FOR
EFFECTIVE COOLING OF DISCHARGE AIR.
OIL
WATER
CONTROL
OIL
OUT
IN
VALVE d
-&)
HEAT EXCHANGER
MANUAL VALVE TO SHUTOFF
BALANCE WATER FLOW~ ~
IN
u
l_-J-l
r-
5EPARATOR
AFTERCOOLER
c ~
I
L
WATER lN—
L
PARALLEL PIPING
WATER CONTROL
VALVE REQUIRED FOR TEMPERATURE CONTROL
OF OIL
MUST BE ORDERED SEPARATELY.
FIGURE 4-2. – PIPING DIAGRAM FOR AFTERCOOLER AND HEAT EXCHANGER
B75853
Approximate
Water Pressure
Rated Water Temperature To Heat Exchanger
Maximum Drop @
Pressure
Size
Water
Maximum Flow
PSIG 60° F. 70° F.
80° F. 90° F. Flow (Psi)
125 HP ALL 12.0 15.5 20.5
32.0 60 20
150 HP ALL 15.5 19.0 25.5 37.5 60
20
The Maximum Water Flow Shown IsThatAllowable Through The Heat Exchanger.
FIGURE 5-2. – HEAT EXCHANGER (OIL COOLER) APPROXIMATE WATER FLOW
(U.S Gallons/Minute)
Approximate
Water Pressure
Rated Water Temperature To Aftercooler
Maximum Drop @
Pressure
Water
Size
Maximum Flow
PSIG 60° F.
70° F.
80° F.
90° F. Flow (Psi)
125 HP ALL 2.8 3.5
4.7
7.0 30.0 2.5
150 HP ALL 4.0 5.0
6.7 10.0 30.0 2.5
Water flow rates (gpm) are based on 110° F. water temperature out of cooler. Maximum water flow shown is the maximum
allowable flow through aftercooler.
FIGURE 6-2. – AFTERCOOLER APPROXIMATE WATER FLOW
(U. S Gallons/Minute)
13-9-630
Section 2 Page 4