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Thermal Transfer AOVH40-3EXP 3 Phase Ex-Proof Air-Oil Heat Exchanger

$ 7,250.40

The Thermal Transfer AOVH40-3EXP Three Phase Explosion Proof Air-Oil Heat Exchanger is used to cool fluids. Three Phase 3 Horse power motor Class I GP.D & Class II GP.F, G motor. This unit can remove up to 73 hp of cooling with a maximum of 130 gpm in a single pass configuration. In a two pass configuration this unit can remove up to 80 hp and up to 80 gpm. Standard port sizes are 2 inch NPT male thread on all three ports. Offers optional #32 SAE 2½-12UN Thread ports, 30 PSI or 60 PSI bypass check valve, and can be customized to meet your application needs.



The Thermal Transfer AOVH40-3EXP 3 Phase Ex-Proof Air-Oil Heat Exchanger is widely used in applications where water is not available for cooling fluids with a shell and tube heat exchanger. Going off of this, air cooled oil coolers are built for operation with maximum oil pressures of 300 PSI and temperatures of 400°F. The Thermal Transfer AOVH40-3EXP 3 Phase Ex-Proof Air-Oil Heat Exchanger offers that motors furnished are specially built for fan duty. They are guaranteed by the manufacturer for operation in a maximum ambient temperature of 104°F. Consideration should be given to installation location so motors are not subjected to temperatures above this level. Air/oil coolers that are to be installed for utilization of waste heat for the space heating should be mounted 7 to 14 feet above the floor depending on the structure, for proper heat distribution. The Industrial AOVH Series is a high performance version of the AO Series that features high flow rates and higher heat rejection in a compact size. Included within the Thermal Transfer AOVH40-3EXP 3 Phase Ex-Proof Air-Oil Heat Exchanger, the series offers that the design includes a double core, a high performance fan and adjustable louvers that will allow the user to regulate the direction of heated exhaust air. The utilization of the High-Low Turbulator design yields high flow capacity with low flow pressure.

Interchange for AIHTI AOCH40-3EXP



  • Interchange for: Young OCH, American Industrial AC
  • Adjustable louvers (manual)
  • Medium flow rates
  • Moderate heat removal
  • One or two pass

Product Options

  • Internal bypass check valve
  • Foot brackets
  • SAE or Metric connections
  • Corrosive resistant marine coating


  • Maximum operating pressure 300 PSI
  • Maximum operating temperature 400F


  • 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

Additional information

Weight 400 lbs
Dimensions 48 × 48 × 36 in
Manufacturer Part Number


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