Fisher model 3582 D-ring control valve positioner (manual demonstration)

Here, we see a demonstration of the Fisher model 3582 valve positioner, disconnected from the valve.  This way, it is a bit easier to see the interaction of the input and feedback mechanisms, specifically how each affects the baffle/nozzle gap.

• #education
• #instrumentation
• #control
• #valve
• #positioner
• #fisher
• #3582
• #d_ring