air cooler_thermal transfer.pdf

8/22/2019 AIR COOLER_THERMAL TRANSFER.pdf

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World Class Manufacturerof Heat Transfer Products

Brazed Aluminum Heat Exchangers MA Series for Mobile Hydraulics BOL Series for Industrial Hydraulics

Thermal

Transfer Products


2/6

MA SERIES

15.98

13.7817.7218.98

A

2.00

B C

.62

#12 SAE

2 PLACES38 X .50 SLOT4 PLACES

#8 SAEDRAIN

.88

.75

.75

1.77CORE

.12

.44 x .75 SLOT8 PLACES (-12, -18, -32)12 PLACES(-48, -66, -82, -120)

B EC

K

3.00 TYP

1.28

.12 TYP

1/2" NPTSENSORPORT(-12, -18,-32 ONLY)

2.56CORE

.75D

AGFH

J2 PLACES

#8 SAEDRAIN

.88

.31

.88

ModelApproximate

NumberA B C D E F G H J K Shipping Weight

(lbs)

MA-8 3.00 5.67 6.65 10

MA-14 6.00 10.00 10.98 14

MA-20 10.00 14.33 15.31 18

MA-12 13.78 11.73 9.96 9.84 10.87 4.41 4.96 1.00 #12 SAE 4.98 15

MA-18 15.75 13.58 11.81 11.81 12.80 4.96 5.87 1.00 #12 SAE 5.91 18

MA-32 19.69 18.43 16.14 15.75 17.32 3.86 12.00 1.14 #16 SAE 8.07 28

MA-48 23.62 22.13 19.84 19.69 21.02 3.82 8.00 1.14 #16 SAE 41

MA-66 27.56 25.83 23.54 23.62 24.72 3.78 10.00 1.58 #20 SAE 50

MA-82 31.50 27.68 25.39 27.56 26.57 5.75 10.00 1.58 #24 SAE 65

MA-120 31.50 39.49 37.20 27.56 38.39 5.75 10.00 1.58 #24 SAE 88

ModelApproximate

NumberA B C D E F G H J K L Shipping Weight

12V 24V (lbs)

MA-12-4 13.78 11.73 6.26 9.84 9.96 10.87 4.96 4.41 1.00 #12 SAE 4.98 12.5 6.3 19

MA-18-4 1 5.75 13.58 5.04 11.81 11.81 12.80 5.87 4.96 1.00 #12 SAE 5.91 10.6 5.3 23

MA-32-4 19.69 18.43 5.95 15.75 16.14 17.32 12.00 3.86 1.14 #16 SAE 8.07 22.2 11.1 28

.44 x .75 SLOT8 PLACES

B FE

L

3.00 TYP

1.28 .12 TYP

1/2" NPTSENSORPORT

2.56CORECD

AGHJ

K2 PLACES

#8 SAEDRAIN

.88

.31

AIR FLOW

MA-8, MA-14, MA-20 MA-12 thru MA-120

MA-12-4, MA-18-4, MA-32-4

DC Current(amps)

HOW-TO-ORDER

HOW-TO-ORDER

Model Series Model Size Connection Type Motor SpecificationMA -1 NPT 4A 12 VDC

-2 SAE 4B 24 VDC-3 BSPP

Model Series Model Size Connection TypeMA -1 NPT

-2 SAE-3 BSPP

Thermal Transfer Products 5215 21st Street, Racine, Wisconsin 53406-5096 Telephone: (262) 554-8330 FAX: (262) 554-8536


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MA SERIES PERFORMANCE CURVES

Use these curves for theMA series to calculateperformance characteristicsfor your specific application.

0 500 1000 1500 2000 2500 3000

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.20.0

Face Velocity (FPM)

CorrectionFactor

Air Static

MODEL

MODEL

MA-8

MA-14

MA-20

MA-12

MA-18

MA-32

MA-48

MA-66

MA-82

MA-120

0 50 0 1000 1500 200 0 2 500

3.00

2.50

2.00

1.50

1.00

0.50

0.00

Face Velocity (FPM)

AirStatic(inH2O)

Air Static Pressure Drop

1 10 100

HeatRejection(BTU/HR@100FETD)

Oil Flow (GPM)

MA Series with DC Fan Assemblies

MA-12-4A/B

MA-18-4A/B

MA-32-4A/B

100,000

10,000

= 5 PSI

= 10 PSI

= 15 PSI

= 20 PSI

Oil P

500,000

100,000

10,000

HeatR

ejection(Btu/Hr@100FETD)

Oil Flow (GPM)1 10 500100

MA Series

MA-120

MA-82MA-66

MA-48

MA-32

MA-20MA-18

MA-14

MA-12

MA-8

= 5 PSI

= 10 PSI

= 15 PSI

= 20 PSI

Oil P

50 150 250 350 450

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

Viscosity (SSU)

CorrectionFactor

Pressure Drop

MA Series

MA Series with DC Fan Assemblies

50 150 250 350 450

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

Viscosity (SSU)

CorrectionFactor

Pressure Drop


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MA SERIES SELECTION PROCEDURE

FEATURES & BENEFITS

Performance Curves are based on 75 SSU oil, 1000Standard Feet per Minute (SFPM) Air Velocity, and a100F Entering Temperature Difference (E.T.D.).E.T.D. = Entering oil temperature - Ambient air temperature

Step 1: Determine Heat Load.Heat load may be expressed as either Horsepoweror BTU/HrHP = BTU/HR 2545

Step 2: Determine Entering Temperature Difference.The entering oil temperature is generally themaximum desired system temperature.

Step 3: Determine the Corrected Heat Dissipation toUse the Curves.

Step 4: Enter the Performance Curves at the bottomwith the GPM oil flow and proceed upward to theadjusted heat load from step 3. Any curve on orabove this point will meet these conditions.

Step 5: Calculate actual SFPM Air Velocity or SCFM

(Standard Cubic Feet Per Minute) using the FaceArea from the table.

A.)

B.) SCFM Air Flow = SFPM Air Velocity x SquareFeet Face Area

*If the Air Velocity calculated is different thanthe value in Step 3, recheck Corrected oilPressure drop

Step 6: Multiply Oil Pressure Drop from curve bycorrection factor found in Oil P Correction Curve.

Corrected

=

BTU/Hr

x

100F

Heat Rejection Heat Load Desiredx

Air Velocity

E.T.D. Correction Factor

For MA series only.

*SCFM Air Velocity =SCFM Air Flow

Square Feet Face Area

Brazed aluminum construction for optimum performance

Rugged, lightweight, and compact

Provides the best heat transfer per given envelope size whileminimizing pressure drop

Air-side fin design minimizes fouling and static pressure ensuringlong-term, reliable performance

Welded fittings/ports and manifolds ensure structural integrity

Standard SAE ports provide leak-free installations - NPT and BSPP

ports are available

Maximum operating pressure of 300 PSI

Maximum operating temperature of 250F

Customized units are available to meet your specificperformance requirements

Additional capabilities for radiators, charge-air-coolers, condensers,and multi-circuit units to satisfy your complete cooling module needs

Visit our web site atwww.ThermaSys.comand see all thecapabilities and services we provide


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BOL SERIES

B

N

H

G2 PLACES

#8 SAEDRAIN

D

F

E

A

M

K J

L

CAPPROXIMATE

.53 DIA HOLE (-8, -16).44 X 1.50 SLOT

(-30 THRU -1600)2 EACH END

P

AIR FLOW

BOL SERIES

HOW-TO-ORDERModel Series Model Size Connection Type Motor Specification

BOL -1 NPT -2 Single Phase-2 SAE -3 Three Phase-3 BSPP -9 Hydraulic

ModelApproximate

NumberA B C D E F G H J K L M N P Shipping

Weight (lbs)

BOL-8 12.44 15.75 14.72 11.30 3.27 .55 #16 SAE 14.53 3.07 3.50 7.36 M8 Bolt (2PL) 14.01 3.48 45

BOL-16 16.24 19.69 16.16 15.06 4.51 .57 #16 SAE 18.30 3.35 3.74 7.87 M8 Bolt (2PL) 17.95 3.46 55

BOL-30 20.69 26.38 18.23 19.49 5.26 1.32 #20 SAE 24.74 4.25 5.00 10.00 M10 Bolt (4PL) 24.34 5.28 125

BOL-400 19.83 22.45 18.80 17.31 6.50 2.00 #20 SAE 22.30 4.25 5.00 10.00 M10 Bolt (4PL) 20.08 5.20 148

BOL-725 24.37 30.32 18.60 21.60 6.50 2.00 #20 SAE 30.17 4.25 5.00 10.00 M10 Bolt (4PL) 27.95 5.20 170

BOL-950 28.82 37.03 22.69 24.55 9.50 2.00 35.89 6.05 9.20 16.00 M10 Bolt (4PL) 34.26 7.01 300

BOL-1200 28.82 40.96 24.07 24.55 5.50 2.00 40.31 6.05 9.20 16.00 M10 Bolt (4PL) 38.19 7.01 430

BOL-1600 36.89 40.96 25.45 32.62 9.50 2.00 40.31 6.05 9.20 16.00 M10 Bolt (4PL) 38.19 7.01 515

2 SAE

4-Bolt

Flange

ModelFull Load

Frequency RPM Frame ThermalNumber

CFM Motor HP Voltage Phase Amps(Hz) Overload

230V

BOL-8 800 1/3 115/230 1 3.0 60 3450 48C NoBOL-8 800 1/3 208-230/460 3 1.4 60 3450 48C No

BOL-16 1425 1/2 115/230 1 3.7 60 3450 48C No

BOL-16 1425 1/2 208-230/460 3 2.2 60 3450 48C No

BOL-30 2200 1/2 115/230 1 3.7 60 1725 56C No

BOL-30 2200 1/2 208-230/460 3 2.0 60 1725 56C No

BOL-400 2200 1/2 115/230 1 6.0 60 3450 56C No

BOL-400 2200 1/2 208-230/460 3 3.2 60 3450 56C No

BOL-725 3600 1-1/2 115/230 1 8.5 60 3450 56C No

BOL-725 3600 1-1/2 208-230/460 3 4.8 60 3450 56C No

BOL-950 4700 1-1/2 115/230 1 8.6 60 1725 145TC NoBOL-950 4700 1-1/2 208-230/460 3 4.6 60 1725 145TC No

BOL-1200 7000 5 208-230/460 3 8.8 60 1725 184TC No


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BOL SERIES PERFORMANCE CURVES

1,000,000

100,000

10,000

HeatRejection(Btu/Hr@1

00FETD)

Oil Flow (GPM)1 10 100 500

BOL Series

BOL-30BOL-400

BOL-725

BOL-950BOL-1200

BOL-1600

BOL-16

BOL-8

= 5 PSI

= 10 PSI

= 15 PSI

= 20 PSI

Oil P

BOL SERIES SELECTION PROCEDUREPerformance Curves are based on 75 SSU oil and a 100FEntering Temperature Difference (E.T.D.).E.T.D. = Entering oil temperature - Ambient air temperature

Step 1: Determine Heat Load.Heat load may be expressed as eitherHorsepower or BTU/Hr.HP = BTU/HR 2545

Step 2: Determine Entering Temperature Difference.The entering oil temperature is generally the maximum

desired system temperature.Step 3: Determine the Corrected Heat Dissipation to Use

the Curves.

Corrected Heat Rejection = BTU/HR heat load x100F

E.T.D.

Step 4: Enter the Performance Curves at the bottom with theGPM oil flow and proceed upward to the adjusted heatload from step 3. Any curve on or above this point willmeet these conditions.

Step 5: Multiply Oil Pressure Drop from curve by correctionfactor found in Oil P Correction Curve.

HELPFUL HINTS:

Oil Temperature: Oil coolers can be selected using entering or leavingoil temperatures. Typical operating temperature ranges are:Hydraulic Oil: 110F - 130F, Hydrostatic Drive Oil: 130F - 180F,Bearing Lube Oil: 120F - 160F, Lube Oil Circuits: 110F - 130F

Desired Reservoir Temperature

Return Line Cooling: Desired temperature is the oil temperature leavingthe cooler. This will be the same temperature that will be found in thereservoir.

Off-Line Recirculation Cooling Loop: desired temperature is the oil

temperature entering the cooler. In this case, the oil temperature changemust be determined so that the actual oil leaving temperature can befound. Calculate the oil temperature change (oil T) with this formula:Oil T = (BTUs/Hr.) / (GPM Oil Flow x 210).To calculate the oil leaving temperature from the cooler, use this formula:Oil Leaving Temp. = Oil Entering Temp. - Oil T.This formula may also be used in any application where the onlytemperature available is the entering oil temperature.

Oil Pressure Drop: Most systems can tolerate a pressure drop throughthe heat exchanger of 20 to 30 PSI. Excessive pressure drop should beavoided. Care should be taken to limit pressure drop to 5 PSI or less forcase drain applications where high back pressure may damage the pumpshaft seals.

Thermal Transfer Products 5215 21st Street, Racine, Wisconsin 53406-5096 Telephone: (262) 554-8330 FAX: (262) 554-8536

BOL Series

50 150 250 350 450

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

Viscosity (SSU)

CorrectionFactor

Pressure Drop

air cooler_thermal transfer.pdf

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