Fisher 3590 Valve Positioner Manual -

Pneumatic pressure as required for valve plug travel, typically between Supply Pressure:

The is a discontinued series of electro-pneumatic valve positioners. While Emerson (Fisher's parent company) has moved most legacy manuals to archival status, the technical details for the remain available for maintenance and replacement purposes. 🛠️ Key Technical Specifications fisher 3590 valve positioner manual

Connects the valve stem to the positioner. Relay: Amplifies the air signal to move the actuator. Installation Procedures Pneumatic pressure as required for valve plug travel,