Fluid Cooling Mobile DF Series Features Same as DH with DC Fan
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3 /4” Tube Size
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Low AMP Draw 12 or 24 Volt DC Motors
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Heavy Duty Construction
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Optional Serviceable Relief Bypass Valve
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AIR COOLED DF
Optional Fan Control Switch
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Long Life Hydraulic Motors
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Rugged Applications
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Steel Manifolds
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Heat Removal TO 35,000 BTU/Hr.
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Oil Flows to 110 GPM
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Mounting Brackets Included
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SAE, NPT or 37° Flare Oil Connections
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Damage Resistant Steel Fins
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Ratings
Relief Bypass Valve Option
Materials
Operating Pressure 300 psi
Tubes Copper
MODEL Description
Test Pressure 300 psi
Fins Steel
Operating Temperature 350° F
Turbulators Aluminum
DFR-11 3/4”, external, all steel valve. Available in either 30 PSI or 60 PSI settings. May be removed for servicing.
Manifolds Steel Fan Assembly High Impact Plastic Motor Displacement .22in3/Rev. (Hydraulic) Maximum Pressure 2 000 PSI (Hydraulic) Allowable Backpressure 1000 PSI (Hydraulic)
DFR-12 1-1/2”, external, all steel valve. DFR-22 Available in either 30 PSI or 60 PSI settings. May be removed for servicing.
DC current required
Number of Fans
Hydraulic Motor Data
12 Volt 24 Volt
Oil Flow Required (GPM)
Minimum Operating Pressure (PSI)
Maximum Fan Speed (RPM)
1
12.5 amps
6.3 amps
2.1
300
2200
2
25 amps
12.6 amps
4.2
300
2200
How to Order –
DF
Model Series DF DFR - Relief Bypass Included
– Model Size Selected
– Connection Type* 1 - NPT 2 - SAE 3 - BSPP 7 - 37° Male Flare
– Motor Specification NM - No Motor 4A - 12 Volt DC 4B - 24 Volt DC 9 - Hydraulic Motor
Relief Bypass Blank - No Bypass 30 - 30 psi 60 - 60 psi ADD FOR DFR MODELS ONLY
*Other connection types available. Please consult factory for assistance.
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H
4 HOLES
Dimensions - 12 & 24 Volt DC Motors IN* FLOW
Models DF-11 and DF-12 D
B E
POWER LEAD 12" LONG .53 DIA 4 HOLES
3/8 NPT PORT FOR OPTIONAL TEMP SENSOR
IN*
F
C
A H DF
DFRG
DF
DFR 2.06
DF-22
D
E
F
5.51
20.75
17.75
1.50
7.01
C
22.75
G
2.50 C
18.75
H
K7.50
3.69
1.00
A
7.69
1.50
14.25
MODEL
J
NPT
K
SAE
38 57 3.00 J (2 PLACES) D 110 E
#16 B E
B
#24
LBS
1.50 C
F
G
A
G
F RELIEF BYPASS VALVE (OPTIONAL)
.53 DIA
J (2 PLACES)
A
H
K
C
IN*
MODEL
DF-11 DF-12 DF-22
2.06
A
DF
B
DFR
DF
19.25
20.91 22.91 22.62
21.25
D
5.51
FLOW
F
J (2 PLACES)
C
DFR
IN*
18.00 16.12 .53 DIA 17.004 HOLES 18.25 33.73 31.47
FLOW
Models DF-11 and DF-12 B E
18.75
1.50 2.50
7.50
3.69
1.00
#16
7.69
1.50
#24
H
7.50
3.69
14.25
7.69
#8 SAE TYP IN
3/8 NPT PORT FOR OPTIONAL TEMP. SENSOR
A
GDFR
B
NPT
J
18.00 18.25 33.73
16.12 17.00 31.47
DF-12 DF-22
B
19.25
.53 DIADFR 4 HOLES 20.91
22.91 IN* 22.62
21.25
1.00
SAE
1.50
#16
1.50
H
3/8 NPT PORT FOR OPTIONAL
38 57 110
3.00
#24
C
G
.53 DIA 4 HOLES IN*
D
J (2 PLACES)
C
K
2.06
AIR FLOW E
B
F 14.25 RELIEF BYPASS VALVE (OPTIONAL) A
L
C
D
E
F
7.47
20.75
17.75
1.50
9.46
K
F
K LBS TEMP. SENSOR
C
DF
2.06
D
Units shown with optional bypass valve
DF
22.75
18.75
AIR FLOW
G
2.50MODEL
H
7.50 14.25DF
3.69 A
NPT
1.00
7.69DFR 1.50 DF
J
SAE
#16 B
#24DFR
K
1.50 3.00C
L
FLOW
F 14.25 RELIEF BYPASS VALVE (OPTIONAL) A
K
J (2 PLACES)
C
K
J (2 PLACES)
C
LBS
38 57 D 7.60 110 7.56
E
7.47 20.75 17.75 19.25 20.91 18.00 16.12 DF-11 17.00notice.18.25 Note: to make reasonable design changesDF-12 without *Inlet and outlet22.91 oil connections can be 18.75 9.46 22.75 21.25 D 2.06All dimensions are in inches. We reserve the right E B 22.62 33.73 31.47 DF-22 reversed when the bypass valve is not used.
L
F
1.50 2.50
MODEL
DF
B
DFR
DF
DFR
C
D
E
F
G
H
NPT
J
SAE
K
L
LBS
J
G
H
7.50
3.69
1.00
#16
14.25
7.69
1.50
#24
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3.00
Model DF-22
K
F
D
3/8 NPT PORT MODEL H FOR OPTIONAL TEMP. SENSOR DF-11
1.50
AIR FLOW
FLOW
2.06
#8 SAE TYP IN
K
SAE
AIR FLOW E
G
14.25 A FLOW (OPTIONAL) RELIEF BYPASSAIRVALVE A L
G
3/8 NPT PORT FOR OPTIONAL TEMP. SENSOR
F
VALVE (OPTIONAL)
22.75
L
H
E
20.75 RELIEF17.75 BYPASS
7.01
J
L
G
4 HOLES Dimensions - Hydraulic Motors
D
NPT
NPT
SAE
DF
H
H
14.25
FLOW
DF DFR DF IN* DFR AIR FLOW TEMP. SENSOR RELIEF 20.75 17.75BYPASS 1.50 19.25 20.91 18.00 16.12 .53 DIA DF-11 FLOW oil5.51 Note: All dimensions are in inches. We reserve the right to make reasonable design changes notice. outlet connections VALVE (OPTIONAL) 18.25 *Inlet and 22.91 17.00 4 HOLES DF-12 without D 7.01 22.75 18.75 2.50 21.25 can be reversed when the bypass valve is not used. E B 22.62 33.73 31.47 DF-22
3/8 NPT PORT FOR OPTIONAL TEMP. SENSOR
K
AIR FLOW
C
F
J (2 PLACES)
A
L
.53 DIA
B
AIR FLOW E B
RELIEF BYPASS VALVE (OPTIONAL)
A
POWER HOLES 19.25 18.00LEADS #8 16.12 SAE TYP IN420.91 12" LONG 22.91 17.00 3/8 NPT PORT18.25 21.25 D FOR OPTIONAL33.73 22.62 IN* 31.47
3/8 NPT PORT DF-11 FOR OPTIONAL TEMP SENSOR DF-12
C
K
F
VALVEK(OPTIONAL)
D
H
D
RELIEF BYPASS
FLOW
Units shown with optional bypass valve G MODEL
J (2 PLACES)
J (2 PLACES)
IN*
H
4 HOLES
FLOW
B E
G
.53 DIA 4 HOLES
.53 DIA G POWER LEADS 12" LONG
H
3/8 NPT PORT FOR OPTIONAL TEMP SENSOR
RELIEF BYPASS VALVE (OPTIONAL) A AIR FLOW
A
C
Model DF-22
E B
RELIEF BYPASS VALVE (OPTIONAL)
FLOW F
K
D
AIR FLOW
J (2 PLACES)
IN*
F
3/8 NPT PORT FOR OPTIONAL TEMP SENSOR
AIR COOLED DF
G POWER LEADS 12" LONG
H
3/8 NPT PORT FOR OPTIONAL TEMP SENSOR
AIR FLOW
G
.53 DIA
33
1
3
Performance Curves 50,000
Oil P Correction Curve
AIR COOLED DF
40,000 4
DF - 22 30,000 P Multiplier
3
25,000
Oil
HEAT DISSIPATION BTU/HR. AT 50˚F E.T.D.
5
2
20,000 DF - 12 15,000
1 50
100
200
300
400 500
Oil Viscosity SSU
DF - 11
10,000 9,000 8,000
OIL PRESSURE DROP
= 5 PSI = 10 PSI
7,000 6,000 5,000 3
4
5
6
7
8
9 10
15
20
25
30
40
50
60
70
80 90 100
150
OIL FLOW - GPM
Selection Procedure
horsepower or BTU/Hr. To convert horsepower to BTU/Hr.: BTU/HR = Horsepower x 2545 Step 2 Determine Entering Temperature Difference. The entering oil
temperature is generally the maximum desired oil temperature. Entering oil temperature – Ambient air temperature = E.T.D. Step 3 Determine the Corrected Heat Dissipation to use the curves.
Corrected Heat Dissipation = BTU/HR heat load x
50°F x Cv E.T.D.
P MULTIPLIER
Step 1 Determine the Heat Load. Heat load may be expressed as either
Step 4 Enter curves at oil flow through cooler and curve heat dissipation. 5
OILcurve P CORRECTION Any above the CURVE intersecting point will work.
Step 5 4 Determine Oil Pressure Drop from Curves: 3 2
l = 5 PSI; n = 10 PSI; Multiply pressure drop from curve by correction factor found in oil s P correction curve.
OIL
Performance Curves are based on 50 SSU oil entering the cooler 50°F higher than the ambient air temperature used for cooling. This is referred to as a 50°F E.T.D.
Oil Temperature 1 50 60 70 80 90 100 150 200
300 400 500
OIL VISCOSITY Typical operating temperature- SSU ranges are: Hydraulic Motor Oil 120°F - 180°F Hydrostatic Drive Oil 160°F - 180°F Engine Lube Oil 180°F - 200°F Automatic Transmission Fluid 200°F - 300°F
CV Viscosity Correction
OIL SAE 5 SAE 10 SAE 20 Average 110 SSU at 100°F 150 SSU at 100°F 275 SSU at 100°F Oil Temp °F 40 SSU at 210°F 43 SSU at 210°F 50 SSU at 210°F
100 150 200 250
DF 34
SAE 30 500 SSU at 100°F 65 SSU at 210°F
1.14 1.22 1.35 1.01 1.05 1.11 .99 1.00 1.01 .95 .98 .99
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SAE 40 750 SSU at 100°F 75 SSU at 210°F
1.58 1.77 1.21 1.31 1.08 1.10 1.00 1.00
Thermostatic Temperature Control Option (DC) This controller was designed to mount on the cooler without requiring extensive wiring or plumbing. It provides accurate temperature control by cycling the cooling fan(s) to maintain desired oil temperature. 12 or 24 volt operation
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Adjustable temperature settings range from 100°F thru 210°F in 20°F increments
Part Number Description 96171 Electronic Fan Control Kit 68790 Replacement Control Only 67699 Replacement Sensor Only
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For use with one or two fan models
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Temperature sensor provided
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Wiring provided for remote manual override
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Mounting hardware included
Side View
AIR COOLED DF
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Connection Assembly M5-.8 X 20MM LG MOTOR MTG SCREW
TEMPERATURE SELECT SWITCH
M5 LOCKWASHER
.90 ± .2
.12
1.12
CONTROL MOUNTING BRACKET A-67367
RING TERMINAL #10 STAR WASHER MOTOR MOUNTING BRACKET
6.50 ± .5
4.50 ± .5 BLACK P2 (BATTERY NEGATIVE)
2.00
Electrical Schematic
P3 BLACK (OVERRIDE) P4 RED (12 OR 24 VDC) P5 YELLOW (12 VDC) P6 ORANGE (24 VDC) P7 GREEN (OVERRIDE)
Top View
MOTOR
SWITCH SETTINGS 1-100F 4-150F 2-120F 5-180F 3-140F 6-210F
8.00 MIN
FAN CONTROL
BLACK (SENSOR GROUND)
WHITE (SENSOR)
BLUE P1 (FAN)
#10 STUD 3.50 2X Ø.188 ± .010
NOTE: This switch should be fused to prevent damage if ground is lost. A 30 amp fuse is required in the power supply.
DF
4.00
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