the up (universal pneumatic) and lp (linear pneumatic) actuatorsare designed to precisely position these final control elementsbased on the set point from the control system. up and lp actuatorsare sized according to the required damper torque/force and travelspeed. options are available for achieving desired safety if thepower or control signal fails, such as:
- move the damper to a safe position either fully open or
closed or
- hold the last valid damper position.
these options allow the boiler design engineer to select theappropriate safety control philosophy of the combustion loop.
the use of digital positioning technology ensures accurate damperpositioning as well as providing advanced diagnostics to providethe user with real time positioning data as well as predictivemaintenance information for reliable damper control.

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济南文麦自动化设备有限公司
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