Horton says its new Stratis Viscous Fan Drives have been introduced in anticipation of the 2010 (and Euro V) emissions standards. Managed by the engine’s electronic control unit, these directly controlled viscous fan drives are designed to cool higher-horsepower, hotter-running engines. They’re offered for heavy- and medium-duty applications, and off-highway equipment.

A Stratis fan drive is said to respond rapidly to cooling needs. The drive is equipped with an integral fan-speed sensor that provides closed-loop control capabilities. Its “optimized” magnetic design speeds reaction time for better modulation and cooling, Horton says, adding that the reservoir, actuator and valve system combine to deliver a lower off-speed and faster response time that results in optimum cooling, reduced fan noise and increased fuel efficiency.

Stratis has a rear-mounted cable harness to shield the connection from fan blades. Uniquely, the fan installs on the front of the fan drive to increase air flow. These new drives are engineered to turn Horton’s WindMaster or competitive fans.

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