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The same must be true in the disproportionate zone of the valve. Any equipment used must be able to withstand the harsh operating environment and high ambient temperatures associated with superheater applications.

Solutions - Highly accurate continuous positioning of sprinkler valves ABB's Contrac continuous electric linear actuator provides the ideal solution for sprinkler valve control applications.

The ideal solution for valve control applications. Even at ambient temperatures up to 85 °C (185 °F) according to IEC 60034-1.

The Contrac actuator is fully S9-100%ED operable even at ambient temperatures up to 85 °C (185 °F), allowing for highly accurate continuous positioning of water spray valves.

The Contrac actuator utilizes oil lubricated spur gears and the drive shaft is supported by ball bearings.

Rotary motion is converted to linear motion in the linear actuator by means of a highly efficient ball screw spindle.The Contrac actuator is wear-free, with a deadband of only ± 0.5 mm.

With a deadband of only ± 0.05%, the Contrac actuator provides highly accurate positioning for all types of valves. With its rugged design and IP66/NEMA 4X rating, the Contrac actuator can withstand even the most extreme conditions.

With its rugged design and IP66/NEMA 4X protection rating, the Contrac actuator can withstand even the harshest operating conditions.