Hayden Industrial Products

Our heat exchangers include many features that produce smaller and more reliable units specially designed to fit your needs. Here are a few of the features that we offer:

Fin Cool® Air-to-Oil Heat Exchangers

Fin Cool® combines our innovative features, insuring a structurally sound, compact design that maximizes overall heat transfer at the lowest cost. Fin Cool® heat exchangers are available for small to very large applications.

Typical Fin Cool® Features

1.	Various fitting types are available to meet your plumbing installation requirements.
2.	Rippled fin design increases heat transfer surface area and provides better distribution and mixing of air flow.
3.	Turbulators maximize heat transfer by breaking up laminar flow. Various designs are available to ensure fluid compatibility. We offer our unique spiral flow turbulator which increases heat-transfer efficiency as much as 600% over no turbulator.
4.	Mechanically expanded tube-to-fin construction maximizes heat transfer and improves structural integrity.
5.	Tube sheets protect fins and add to structural integrity.
6.	Spun headers improve structural integrity over header end caps, reduce cost, and minimize leak points.

Different mounting options are also available to ensure secure installation. [Number on picture?]
Bossed header-to-tube braze joints improve structural integrity and provide a better fit and sealing surface. [Number on picture?]

Temp-Troller® Air-to-Oil Heat Exchangers

High-efficiency, enclosed heat exchanger units combine all the Fin Cool® features with various motor and fan combinations for mobile and stationary applications. Temp-Troller® heat exchangers are available for medium to jumbo-sized applications.

Typical Temp-Troller® Features

1.	A full lightweight enclosure protects the heat exchanger core and maximizes air flow for better heat transfer
2.	Fan and fan shrouds are designed to maximize air flow delivery and ensure quiet, vibration-free operation. Fan guards are standard on all units and are in accordance with OSHA standards.
3.	Mounting slots along the enclosure's perimeter allow for easy vertical installation
4.	A full selection of fan motors are available, including ATEX & CE certified, explosion proof, and hydraulic.

Mounting legs are available on our larger units for horizontal installation
Motors offer long life, maintenance-free operation, and are sized to offer the best possible heat transfer capacity. Motor options are available to meet specific power installation requirements
Fan blades are custom designed to maximize air flow and minimize noise. We have in-house sound level testing capabilities, which follow ISO 3744 procedures, and have validated units below 90 dB(A) sound power levels
Larger sizes use multiple tube/fin rows to meet any heat-transfer requirements

Brazed Aluminum Air-to-Oil Heat Exchangers

Our stacked bar and plate brazed aluminum heat exchangers are a rugged all-aluminum construction designed for severe applications. Our brazed aluminum heat exchangers are available with a variety of internal and external fin patterns, and manifolds customized for your piping connection requirements.

Our 45 years of producing heat exchangers have let to the development of technologies which produce more compact and reliable heat exchangers than other manufacturers.

SwirlFlow Turbulator

Continuous rippled, full-collared 1½" wide fins offer key advantages over traditional straight finned models. The rippled construction along the outer edges as well as across the air path provides for

Structural rigidity
Increased surface area
Better air flow mix

The net result is optimum heat transfer performance. In addition, full collars ensure maximum surface-to-surface contact as the ¾" diameter tubes are mechanically expanded to join and secure the tube and fin assembly. All this means a structurally solid unit that maximizes heat transfer capacity in a compact design.

Hayden's standard design of copper tubing with aluminum fins optimizes effectiveness based on BTUs per dollar. Custom units manufactured with copper or steel fins are also available. Standard fin spacing is 12 fins per inch with optional spacing at 8 or 10 fins per inch. Steel and stainless steel tubes are alternatives to our standard copper tubing.

SwirlFlow Turbulator

Our aluminum turbulator within each of our ¾" tubing increases thermal efficiencies by as much as 550 percent when compared with bare tube heat exchangers. The design features of the SwirlFlow Turbulator are:

Eighteen equally-spaced radial fins
Spiral swirl groove
Central passage - used in conjunction with our Integrated Pressure Relief Valve option

The central passage is normally sealed so fluid passes only through the radial fins and the swirl groove, forcing the flowing fluid closer to the heat transfer surfaces. The resulting high velocity, turbulent flow:

Prevents clogging
Enhances self-cleaning
Provides more effective heat transfer

The SwirlFlow Turbulator is mechanically bonded within the entire length of the tubes to ensure full surface contact between turbulator and tube assembly. The bonding strengthens the unit's structural integrity as well as maximizing heat transfer performance.

Trans-T Turbulator

This square, rippled copper turbulator is used in our ¾" tubing for lower viscosity fluids, where fluid compatibility or minimized pressure drops are required. As with our SwirlFlow Turbulator, the Trans-T breaks up laminar flow, forcing a better mix of fluid closer to outer tube. The resulting fluid distribution profile promotes improved heat transfer.

Integrated Pressure Relieve Valve (option)

Our Integrated Pressure Relief Valve (Smart-Valve) design feature assures optimal performance through pressure drop variations. It automatically adjusts internal passage size, instead of bypassing the heat exchanger core. It offers you:

Simplified plumbing
Reduced cost
Reliable, accurate pressure response
Smooth, integrated on-line heat transfer operation
Elimination of potential leak points

If your system currently experiences cold-start problems, large flow variations, pressure spikes in the heat exchanger line, or space limitations, then a Hayden heat exchanger with an Integrated Pressure Relief Valve is the ideal choice.

Integrated Pressure Relief Valve in the closed position

Integrated Pressure Relief Valve in the open position

A heat exchanger with an Integrated Pressure Relief Valve can be fine tuned to your system's exact requirements, including:

Standard pressure response settings at 30 or 65 psi
Other customized settings to meet your specific design requirements

The IR photos show fluid flow through the heat exchanger core at initial temperatures of 5°F (-15°C) in photo 1. Fluid flows through the heat exchanger’s tubes equipped with Integrated Pressure Relief Valve. While the viscous fluid is “unslugged” in photos 2 and 3, system temperature approaches normal operating conditions as the entire heat exchanger comes on-line with progressively more fluid flow through all tubes. In photo 4,full flow optimizes heat exchanger performance.

These thermographic infrared photos show how Integrated Pressure Relief Valve will steadily bring a heat exchanger on-line and eliminate the needs and problems associated with an external bypass. When fluids are more viscous, such as during cold starts, our SwirlFlow Turbulator and Integrated Pressure Relief Valve will compensate by "unslugging" the thicker fluids through increased internal passages. If an external bypass were used, fluid flow would continue to bypass the heat exchanger until the fluid reached maximum operating conditions. By the time the heat exchanger was fully on-line, excessive fluid temperatures may have caused damage to other critical system components. With an Integrated Pressure Relief Valve, system components are protected from undesirable pressure and temperature conditions.

With Integrated Pressure Relief Valve, pressure drops are maintained within system operating requirements, while increased fluid flows safely through the SwirlFlow Turbulator's central passage.

Through a controlled pressure drop range, Integrated Pressure Relief Valve will also control system operating temperatures so that the heat exchanger core will steadily come on-line.

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