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Heat exchangers
Liquid heat exchangers absorb heat from the hot liquid flow, conduct it through the heat exchanger and reject it into the secondary fluid flow. Heat exchangers typically employ additional surface area like stamped or folded fins to increase the rate of heat transfer. Liquid heat exchanger efficiency depends on design, flow configuration, surface area, flow rates and temperature differences between the two liquids. Engineers optimize each parameter for the specific application so liquid heat exchangers effectively transfer thermal energy between fluids.
To function, liquid cooling systems need a heat exchanger to reject heat. Liquid heat exchangers enables liquid systems to absorb heat while maintaining safe operating temperatures.
Eaton's engineering team uses their expertise to select from hundreds of custom and semi-custom liquid heat exchangers which include a variety of fin options, heat pipe integration possibilities and other enhancements to design an optimized solution for your liquid system. Our team is well-versed in an extensive selection of fluids, oils and coolants and a wide range of fabrication methods to design and manufacture liquid heat exchangers to enhance your liquid system.
Flat tube liquid heat exchangers consist of flat tubes with extended surface channels coupled with external fins. The tubes provide additional heat transfer through a large internal surface area in contact with the fluid. Header manifolds designed for flat tube heat exchangers result in a low pressure drop that require smaller, less expensive pumps. The flat tube and extended fin structure results in an efficient, rugged and lightweight solution ideal for challenging applications.
Our standard ES oil cooler series features aluminum flat tube heat exchangers engineered for high performance with poor heat transfer fluids such as oils and ethylene glycol/water (EGW) mixtures. Our oil coolers provide up to 2.5 times greater thermal performance per unit volume than competitive oil cooler models. Eaton's flat tubes can be bent as tight as a 6.35 mm (0.25 in.) radius, allowing for unique, curved heat exchangers that can be further integrated into your custom system. We can add custom fittings, manifolds, paint or anodize for extra integration and environmental protection.
Eaton's standard flat tube liquid heat exchangers have aluminum fins and flow paths, with 3/8 – 18 NPT fittings and pre-installed fan plate. Customers have the option of adding a fan kit with their heat exchanger, with either 115 V or 230 V fans. Max. operating temperature: 200° C (400° F).
Model number |
Dry weight, kg (lbs) |
Fluid volume, mL (in.^3) |
# Fans in optional kit |
| ES0505G23 | 0.91 (2.0) | 229 (14) | 1 |
| ES0510G23 | 1.30 (2.85) | 278 (17) | 2 |
| ES0707G23 | 1.30 (2.85) | 393 (24) | 1 |
| ES0714G23 | 2.51 (5.53) | 508 (31) | 2 |
Brazed plate liquid heat exchangers are compact, highly efficient and durable liquid-to-liquid heat exchangers. These heat exchangers are constructed from stacked plates brazed together that are typically corrugated to add surface area and more heat transfer. The brazed plate heat exchanger counter flow design allows 90% of the material to be used for heat transfer. These heat exchangers can be up to 80-90% smaller than a conventional shell-and-tube design. The brazed plate liquid-to-liquid heat exchangers construction offers a rugged, efficient and long-lasting heat exchanger that withstands demanding environments.
Braze material and plate corrugation patterns can be configured for different operating liquids and system requirements. Our copper-brazed units are compatible with water, ethylene glycol-based water solution (EGW) and other common coolants. Copper-brazed units can be operated at temperatures of up to 195° C (383° F) and pressures up to 31 bar (450 psig). Nickel-brazed plate heat exchangers can use deionized water, high purity fluids and corrosive fluids and operate at temperatures of up to 350° C (662° F) and pressures up to 16 bar (232 psig).
Heat exchanger recore or core replacements can extend the life and performance of existing thermal management systems. Heat exchanger and radiator systems installed in various industrial applications, energy processing, power generation, aerospace, defense and transportation industries are sources for efficiency improvements as technology evolves over time. Improved thermal system efficiency translates to greater energy efficiency, increased production, better yield and resource utilization and cost savings. Maintenance and retrofit of existing installed systems provide a scalable, lower cost alternative to replacing entire thermal systems.
Eaton has decades of experience manufacturing heat exchanger core replacements for many industries that require components with high reliability and quality for maximum system uptime and minimal maintenance.
Eaton offers reverse engineering design solutions to create custom drawings that enable new production of out-of-date retrofit components.
While Eaton supports a broad range of recore applications, we specialize in commercial, military and general aviation aircraft. Utilizing approved data and procedures, we collaborate with FAA/EASA-certified repair stations for aerospace aftermarket heat exchanger recore support. Working with FAA-approved repair stations, more than 100 different Eaton heat exchanger cores are available to replace OEM parts on Boeing, Airbus, McDonnell Douglas (MD), Bombardier Canadair Regional Jet (CRJ) and Embraer Regional Jet (ERJ) aircraft.
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