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API Schmidt-Bretten, API Heat Transfer group
MA Series

MA Series

Product catalog summary

Overview: The document provides technical specifications and ordering information for the P-Bar Series Mobile MA fluid coolers, which are air-cooled and constructed with brazed aluminum. These coolers are designed for efficient heat transfer with minimal pressure drop and are suitable for various applications, including radiators, charge-air-coolers, and condensers.

Specifications:

Core: Bar and plate brazed aluminum, ensuring ruggedness, lightweight, and compactness.
Fan Motor: IP68 rated with AMP-#180908 connection.
Fittings/Ports: Welded aluminum for structural integrity, with standard SAE, NPT, and BSPP ports available.
Operating Pressure: Maximum of 250 psi (17 BAR).
Operating Temperature: Maximum of 300°F (150°C).
Fluid Compatibility: Suitable for petroleum/mineral oils, oil/water emulsion, and water/ethylene glycol.

Ordering Information: The model series includes various sizes (e.g., MA-3, MA-3.5, MA-4, etc.) with options for connection types (NPT, SAE, BSPP) and bypass settings (30 or 60 PSI). Specific models have fan options and bypass availability.

Performance and Selection:

Heat Load Calculation: Based on horsepower or BTU/HR or KW/°C.
Temperature Difference: Calculated as the difference between entering oil temperature and ambient air temperature.
Air Velocity Correction: Necessary for models without a DC fan assembly.
Heat Dissipation: Corrected using desired air velocity and correction factors.
Model Selection: Based on performance curves and oil flow rates.
Oil Pressure Drop: Calculated using correction factors and performance curves.

Performance Curves: The document includes performance data curves for various models, indicating heat rejection capabilities and oil flow rates. These curves help in selecting the appropriate model based on specific application requirements.

Additional Notes: The document reserves the right to make design changes without notice, and all dimensions are provided in inches and millimeters.

Catalog excerpts

BRAZED ALUMiNUM CONSTRUCTiON Features ■ Bar and Plate Brazed Aluminum Core ■ Rugged, lightweight, and compact ■ Provides the best heat transfer per given envelope size while minimizing pressure drop ■ Air-side fin design minimizes fouling and static pressure ensuring long-term, reliable performance ■ Fan motor assembly has an IP68 with AMP-#180908 connection ■ Welded aluminum fittings/ports and manifolds ensure structural integrity ■ Standard SAE ports - NPT and BSPP ports available ■ Customized units are available to meet your specific performance requirements ■ Additional capabilities for radiators, charge-air-coolers, condensers, and multi-circuit units ■ Optional temperature sensors (see pg. 171) Ratings Materials maximum operating pressure 250 psi (17 BAR) maximum operating temperature 300° F (150° C) Fluid Compatability Petroleum/mineral oils Oil/water emulsion Water/ethylene glycol How to Order Core Brazed Aluminum Bar and Plate ■ Tanks - 5052 Aluminum ■ Nose Bar & Little Bar - 3003-H Aluminum ■ Air Fin, Plate, Turbulator & End Plate -3003-O Aluminum Connections Aluminum Core mounting brackets Brazed Aluminum model model size selected Connection ‘Bypass available on MA-12, MA-18, MA-32, MA-48, MA-232, MA-248 only. (MAR) MA-8, MA-14, MA-20, MA-66, MA-32 do not have fan option. MA 3.5 available with fan only.

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Note: We reserve the right to make reasonable design changes without notice. Dimensions are in inches and (millimeters). *AMP draw listed as per FAN. Thermal Transfer Products A ThermaSyf Company www.thermaltransfer.com TTPSales@therma

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Dimensions - Core Only MA-4 A pprox. Ship Model A B C D E F G H J K Wt. lbs (Kg) MA-3 Note: We reserve the right to make reasonable design changes

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Performance Curves MA Models with DC Fan Assemblies MA Models (No Fan, Core Only) Performance Data Curve Performance Data Curve 500,000 Heat Rejection BTU/HR @ 100F ETD Oil Pressure Drop Correction Pressure Drop Air Static Pressure Drop Correction Factor Correction Factor Face Velocity SFPM (smpm) Heat Rejection BTU/HR @ 100F ETD Selection Procedure Step 1 Determine Heat Load. Typical Rule of Thumb, - size cooler for Step 4 Determine the Corrected Heat Dissipation to use the Curves English Version Metric Version Corrected Heat Rejection KW °C Step 2 Determine Entering Temperature Difference....

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MA Series

MA Series

Catalog excerpts

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