AOVH Series

Product Type

Heat Exchanger

Solution

Hydraulic Oil Cooling

Application

Industrial Applications

Technology

Air Cooled, Copper Tube / Aluminum Fin

High-Performance Air-Cooled Hydraulic Oil Cooler — High Flow, Low Pressure Drop

The Thermal Transfer Products Industrial AOVH Series is a high-performance air-cooled hydraulic oil cooler built with a copper-tube, aluminum-fin core. As the high-capacity version of TTP’s AO Series, it delivers high heat rejection and low pressure drop for high-flow applications, using a double-core, AC-fan-driven design in a compact footprint. Its High-Low Turbulator design is what yields high flow capacity with low flow pressure, making it well suited to demanding, continuous-duty cooling.

The AOVH cools hydraulic oil (and fluids such as glycols) with ambient air, and is widely used on hydraulic power units, injection molding machines, gear drives and gearboxes, machine tools, torque converters, and marine equipment. A high-performance fan and adjustable cabinet louvers let you regulate the direction of heated exhaust air, and the versatile design supports one- or two-pass flow. Two-pass units (the AOVHR configuration) route oil through the core twice for greater heat rejection and add an integral relief bypass valve that protects against high backpressure during cold starts, high-viscosity operation, or pressure spikes.

Maximum operating pressure is 300 PSI with a maximum operating temperature of 400°F. Fan motors are built for fan duty and rated for ambient temperatures up to 104°F, with single- and three-phase options and explosion-proof motors available for hazardous locations. To simplify system integration, the AOVH Series is fully supported with 3D CAD models, downloadable datasheets, and technical documentation, and TTP’s XSelector® sizing program helps optimize model selection.

Consult catalog for additional sizes and technical information.

Product Features

  • Adjustable louvers (manual)
  • High flow rates
  • High heat removal
  • One or two pass
Ratings
Maximum Operating Pressure 300 PSI
Maximum Operating Temperature 400°F
Heat Rejection Up to 80 HP (50 KW)
Oil Flow From 2–150 GPM (4–330 LPM)
Materials
Tubes Copper
Fins Aluminum
Turbulators Steel
Fan Blade Aluminum with steel hub
Fan Guard Zinc plated steel
Cabinet Steel with powder coat finish
Manifolds Steel
Connections Steel
Product Options
Connection options SAE & metric
Number of passes 1 or 2
Internal pressure bypass
Corrosive resistant marine coating (Consult  factory)
  • All catalog product is available with short lead-times, ensuring fast delivery and dependable supply
  • 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
  • Replacement parts and maintenance support keep your systems running with minimal downtime
  • Procurement advantage: designed to meet global standards while reducing overall total cost of ownership

* 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.

Documents

Frequently Asked Questions

It’s Thermal Transfer Products’ high-performance industrial air-cooled hydraulic oil cooler — a copper-tube/aluminum-fin, double-core design that provides high heat rejection with low pressure drop for high-flow applications. It’s the high-capacity version of the AO Series.

Hydraulic power units, injection molding machines, gear drives and gearboxes, machine tools, torque converters, marine equipment, and other continuous-duty industrial systems needing substantial cooling.

AOVH is the one-pass configuration for standard duty. AOVHR is the two-pass version — it routes oil through the core twice for greater heat rejection and includes an integral relief bypass valve for system protection. Choose AOVHR for higher thermal loads or added cold-start/backpressure protection.

The High-Low Turbulator design provides high flow capacity while keeping flow-side pressure low — the core reason the AOVH suits high-flow systems where excessive pressure drop can’t be tolerated.

Maximum operating pressure is 300 PSI and maximum operating temperature is 400°F. Fan motors are rated for ambient temperatures up to 104°F, so mount them where they won’t exceed that.

AC fan drive in single- or three-phase, with explosion-proof motors (Class I Group D; Class II Groups F & G) available for hazardous locations.

The AOVH is the high-performance, double-core version — higher flow rates and higher heat rejection in a compact size — where the AO covers medium flow and moderate heat removal. For the hydraulic-motor-driven mobile version, see the AOVHM Series.

Configure the AOVH Series

XSelector® Sizing Program

Use our online portal or our mobile apps to size products to help achieve optimum performance for your application.

Learn More

3D Configurator

Our 3D Product Configurator will allow you to build up the cooler with specific options that are required for your application, view what you have created in 3D, then download the model directly into your format to complete your modeling project.

Talk to an engineer at TTP.

Finding the right thermal management solution shouldn’t be a guessing game. Whether you need a quick price quote, technical specs, or a fully custom engine cooling system designed from the ground up, our team is ready to help.

Fill out the form below, and one of our application engineers will reach out to ensure your equipment stays cool under pressure.