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DH Series
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FLUID COOLING | Mobile DH Series Features ■ Hayden interchange ■ Excellent for Radiator Face Mount Cooling ■ 3/4" Tube Size ■ Steel or Aluminum Fin ■ Copper Manifolds - One Row ■ Steel Manifolds - Two Row ■ High Performance Oil Turbulators ■ Rugged Off-Highway Steel Designs Available ■ Oil Flows to 150 GPM, Heat Removal to 175,000 BTU/HR ■ Oil Cooler ■ Transmission Cooler ■ Fuel Cooler OPTIONS Built-in Relief Bypass Steel Components Custom Sizes/ Mounting Brackets Connection Sizes/ Locations Corrosion Resistant Marine Coating Tubes Copper Fins Aluminum or Steel Turbulators Aluminum Manifolds Copper: Models DH-051 - DH-447 Steel: Models DH-513 - DH-670 Operating Pressure 300 psi Test Pressure 300 psi Operating Temperature 350° F MODEL DESCRIPTION DH-051 Available in either 30 psi or 60 psi thru settings. Bypass valve is built into DH-447 tubes and does not effect external dimensions. All steel valves. Not serviceable. Connections Brass: Models DH-051 - DH-447 Steel: Models DH-513 - DH-670 DH-513 Available in either 30 psi or 60 psi settings. 3/4”, external all steel valve. May be removed for servicing. DH-524 Available in either 30 psi or 60 psi thru settings. 1-1/2”, external, all steel DH-670 valve. May be removed for servicing. Model Model Size Selected Series DH DHR - Relief Bypass Included Relief Bypass Blank - No Bypass 30 - 30 psi 60 - 60 psi Connection Fin Material Examples: DH-051-1-1 or DHR-062-2-2-30 Note: All positions must be filled. Mounting Kits (where needed) must be ordered separately, by part number. *Other connection types available. Please consult factory for assistance.

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Dimensions & Weights DH-051 thru DH-447 D E MOUNTING STRAP Mounting Kits Optional Mounting Kits are available with or without straps. Without strap .34 DIA 6 HOLES EACH STRAP Part Number With strap F G QTY MTG FACE AREA WEIGHT MODEL A B C D E NPT SAE DIA KITS FT SQ LBS. All dimensions in inches. Weights are for aluminum fins. After making your base model selection with the connection of your choice, please refer to the How to Order section. Note: We reserve the right to make reasonable design changes without notice.

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Dimensions & Weights DH-513 thru DH-670 DHR Series H RELIEF H RELIEF BYPASS BYPASS VALVE VALVE C D H FACE AREA WEIGHT MODEL A B DH DHR DH DHR E F G NPT SAE FT LBS SQ All dimensions in inches. Weights are for aluminum fins. After making your base model selection with the connection of your choice,.34 DIA refer to the How to Order section. please .34 DIA Desired Reservoir Temperature 6 HOLES 6 HOLES EACHEACH STRAP STRAP SHOCK SHOCK MOUNTING MOUNTING Typical operating temperature ranges are: KIT KIT Return Line Cooling: Desired temperature is the oil temperature leaving the B B cooler. This...

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Performance Curves Air Velocity Correction Curve Air Static Pressure Drop Air Velocity Correction Curve Face Velocity SFPM Correction Factor Correction Factor HEAT DISSIPATION BTU/HR @ 50˚F E.T.D. Selection Procedure Face Velocity SFPM Face Velocity SFPM Performance Curves are based on 50 SSU oil, 1000 Standard Feet per Minute (SFPM) Air Velocity, and a 50°F Entering Temperature Difference (E.T.D.) E.T.D. = Entering oil temperature - Ambient air temperature Step 4 Enter the Performance Curves at the bottom with the GPM oil Step 1 Determine Heat Load: Heat load may be expressed as either...

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