Valve Controllers & Positioners
Get accurate and predictive valve condition insights with valve controllers, monitoring tools and diagnostic software
Get accurate and predictive valve condition insights with valve controllers, monitoring tools and diagnostic software
Increase valve reliability, performance, and productivity with consistent and predictable valve assembly insights. Trust our valve controllers and positioners for optimal asset performance.
Over 3 Million Fisher Digital Valve Controllers Sold
Pneumatic and analog I/P positioners that minimize setpoint variation and sustain control loop stability
Automatic control systems built with sensing elements for better flow rate, pressure and temperature management
Stable and accurate control valve operation through electronic-pneumatic signal transmission
FAQs
A control valve positioner is typically pneumatic or analog I/P and is used when a valve requires throttling action. It delivers pressurized air to the valve actuator so that the position of the valve stem or shaft corresponds to the set point from the control system.
While a control valve positioner serves a single purpose, which is to maintain a valve at its intended control position, digital valve controllers, through their digital design, provide much more. A digital valve controller is a microprocessor-based instrument that is compatible with a variety of communication protocols, including HART, FOUNDATION fieldbus, and PROFIBUS. The microprocessor enables diagnostics and two-way communication to simplify setup and troubleshooting.
