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Variable speed actuators open new application opportunities

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There are two distinct functions that a valve actuator performs – the ‘intelligence’ of managing digital or analogue control signals and feedback loops, and the ‘brute force’ to open and close a variety of different valve types.
AUMA separates the ‘intelligence’ and ‘brute force’ by taking a modular approach to our actuator construction. This provides an enhanced choice of actuator configuration for our customers, dependent on the end application.
Analogue or digital control heads or, indeed, no control head, can be connected to a range of different drive units through AUMA’s common interface.
The symmetrical connection design enables the head to be connected in one of four different orientations.
In addition, the basic actuator can be built on site in up to 64 different configurations. The control head can also be connected through an umbilical cable of up to 100m length, so the two components can be separated for safety or operational convenience, for example in underground or underwater applications.
Sophisticated control
While fixed speed open/close functionality satisfies the majority of valve...

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