For rotary valves (e.g., Fisher Vee-Ball), you must use a rotary cam and adjust the feedback arm length according to the specific angle of rotation (typically 90°).
Using a soft wire (brass or plastic), gently ream the nozzle orifice from the inside.
Never insert a drill or hard steel—this damages the precision edge.
1. What is the Fisher 3590?
Mounting: The Fisher 3590 valve positioner should be mounted in a location that is easily accessible for maintenance and repair. It should be mounted on a valve that is properly sized for the application, and the valve should be installed in a pipeline that is free from excessive vibration and stress.
Pneumatic Connections: The Fisher 3590 valve positioner requires a pneumatic air supply to operate. The air supply should be clean and dry, and should be regulated to a pressure of 20-100 psi (1.4-6.9 bar).
Electrical Connections: The Fisher 3590 valve positioner may require electrical connections for power and signal input. These connections should be made in accordance with local electrical codes and regulations.