Diversified industrial manufacturer Eaton Corporation has introduced a new line of flexible rubber hose designed for use with biodiesel B2 to B100 in diesel engines, trucks, buses, agricultural vehicles and off-highway applications. In addition, Eaton’s new GH100 ESP™ hose, an Eaton Green Solution, delivers excellent performance with synthetic lubricants used in high-temperature truck transmission oil cooler applications. 

GH100 hose features a hydrogenated nitrile rubber tube, wrapped with aramid/poly braid reinforcement with a polyester abrasion-resistant cover. It is qualified for engine-space use with B2 to B20 up to 150?C and B100 up to 125?C and for transmission oil cooler applications using synthetic lubricants at peak temperatures up to 175?C.

“Biodiesel blends and synthetic lubricants are important aspects of the emerging sustainable energy system and they are going to be increasingly common in the future,” said Alexandra Benz, EMEA product manager – braided and textile hoses for Eaton’s Hydraulics Business. “Unfortunately, these fluids can quickly make ordinary hose products brittle and prone to cracking, and subject them to other forms of premature failure. At temperatures above 100?C, some biodiesel blends above B20 can ‘bake out’ the elastomers necessary to keep hoses flexible. This is a particular problem in vehicles that may see a variety of fuel blends – B5 this week, B20 and higher next week, and so on.

“Temperature is the catalyst,” she said, “and with engine-space temperatures easily reaching 150? C on a hot day, we are seeing hose damage in a short time depending on the biodiesel blend percentage and quality of the blend, on a global front. The materials used in GH100 resist ‘bake out’ which reduces the potential for damage and early hose failure.”

Eaton GH100 is intended to fill the temperature-performance gap between conventional CPE (chlorinated polyethylene) tube hose products and premium PTFE (Teflon) hoses on these vehicles. It meets the requirements of common industry test methods including ASTM D380, 412, and 2240, and has also passed various specific customer/OE biodiesel and fuel test requirements.

”GH100 hose is fully compatible with industry-standard threaded fittings and formed tubes, as well as Eaton’s threadless STC(tm) connectors,” Benz said. “The initial product offering will include sizes 6 through 12. Other sizes can be produced to meet specific customer requirements.”

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Eaton’s Hydraulics Business is a business segment of the Eaton Fluid Power Group.  The business is a worldwide leader in the design, manufacture and marketing of a comprehensive line of reliable, high-efficiency hydraulic systems and components for use in mobile and industrial applications. Mobile and industrial markets include agriculture, construction, mining, forestry, utility, material handling, earthmoving, truck and bus, machine tools, molding, primary metals, automotive, power generation, port machinery and entertainment. Eaton’s Hydraulics Business provides customer-driven solutions under product names such as Aeroquip®, Boston®, Char-Lynn®, Eaton®, Hydro-Line®, Synflex®, Vickers®, Walterscheid™, and Weatherhead®. For more information, visit

Eaton Corporation is a diversified power management company with 2008 sales of $15.4 billion. Eaton is a global technology leader in electrical components and systems for power quality, distribution and control; hydraulics components, systems and services for industrial and mobile equipment; aerospace fuel, hydraulics and pneumatic systems for commercial and military use; and truck and automotive drivetrain and powertrain systems for performance, fuel economy and safety. Eaton has approximately 75,000 employees and sells products to customers in more than 150 countries. For more information, visit

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