DESIGN AND FUNCTION
Series 590
10/56
Edition 2013-05-13
298292EB
3
Design and Function
3.1
Design
open
closed
mechanical position indicator
Figure 3-1
3.2
Function
The valve plate acts as a throttling element and varies the conductance of the valve opening.
Actuation is performed with a stepper motor and controller. The stepper motor/controller version
ensures accurate pressure control due to exact gate positioning.
