DH Series: Hydraulic Oil, Transmission, and Fuel Cooling

Type

Hydraulic Oil Cooling

Cooling Medium

Air

Application

Mobile

Technology

Air Cooled / Copper Tube / Aluminum Fin

Mobile Air Cooled Copper Tube/Aluminum Fin Core

The DH Series is a low cost, high performance mobile core that is an excellent choice for radiator face mount fuel or transmission cooling.  This series features moderate flows, high heat removal and an optional internal pressure bypass for cold start-up protection.  Material options are also available including steel tanks and steel fins for rugged off-highway applications.  Aggressive turbulators allow for optimal heat rejection at lower flow rates.

Engineered for hydraulic circuits up to 70 HP and oil flows up to 150 GPM in mobile systems.

Consult catalog for additional sizes and technical information.

Size this product for your application.

Our XSelector® program allows you to size products to help achieve optimum performance for your application. Use the online portal or try one of our mobile apps.

Try XSelector®

Configure your DH Series: Hydraulic Oil, Transmission, and Fuel Cooling

  • Hayden interchange
  • High strength construction
  • Rugged steel manifolds
  • 3/4″ Copper tube size
  • Aluminum or Steel fins
  • Eliminate piping, reduce cost with optional internal pressure bypass
  • Mounting brackets included
  • Optional partial-flow internal pressure bypass for cold start-up protection
  • Optional steel fin/tank components for rugged off-highway duty
  • Internal pressure bypass
  • SAE or NPT connections
  • Steel components
  • Corrosion resistant marine coating (consult factory)
  • All catalog product is available with short lead-times
  • Expert application engineers are available to select and size the right product for your application
  • XSelector®* is a great tool for optimizing the sizing of TTP coolers.  Check out the Apple and Android app stores to download the XSelector® App.
  • Our distributor One Status portal allows for on demand quoting of coolers and looking up order status.
  • Custom designs are available
  • Explore our Custom Engine Cooling Packages

* To register for XSelector® please go to www.thermaltransfer.com/get-in-touch/ and complete the XSelector® Inquiry form and submit.

Download the XSelector® for both Apple and Android formats by searching for XSelector® in their App Stores. You must first register for XSelector® before using it on mobile devices.

  • Maximum Operating Pressure 300 PSI
  • Test Pressure – 300 PSI
  • Maximum Operating Temperature 350°F
  • Heat Rejection up to 70 HP (52 KW)
  • Oil Flow up to 150 GPM (330 LPM)
  • For higher HP ranges, view our BOL Series
  • Tubes – Copper
  • Fins – Aluminum / Steel
  • Turbulators – Aluminum
  • Manifolds – Copper (DH-051 – DH-447), Steel (DH-513 – DH-670)
  • Connections – Brass (DH-051 – DH-447), Steel (DH-513 – DH-670)

Can DH Series cool a 150 HP diesel-powered hydraulic system?

Yes, the DH Series is suitable for diesel-powered hydraulic systems. But it depends on the heat you need to reject. DH is rated for up to ~70 HP heat removal and up to 150 GPM oil flow. If your calculated heat load is ≤ ~70 HP, DH can be a fit; if it exceeds ~70 HP, select a higher-capacity series via XSelector® or contact Application Engineering.

When should I use the internal pressure bypass?

Recommended for cold-start protection and variable-duty mobile systems.

What are the available material options?

Aluminum or steel fins and tanks for high-vibration or corrosive environments.

Can I use DH for transmission and fuel cooling?

Yes, the DH Series is optimized for radiator face mount and auxiliary cooling applications.

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