Valve Controllers & Positioners

Get accurate and predictive valve condition insights with valve controllers, monitoring tools and diagnostic software

Valve Controllers, Positioners & Instruments

Microprocessor-Based Digital Fisher Valve Positioner

Digital Valve Controllers

Microprocessor-based diagnostic instruments compatible with HART, Foundation Fieldbus and PROFIBUS communication protocols

Fisher pneumatic valve positioner and analog I/P valve positioner

Valve Positioners

Pneumatic and analog I/P positioners that minimize setpoint variation and sustain control loop stability

ValveLink software for control valve positioner and controller configuration

Configuration and Diagnostic Sofware

Predictive diagnostics and real-time valve health monitoring using the configurable ValveLink™ software

Process and pneumatic controllers for final control systems

Pneumatic and Process Controllers

Automatic control systems built with sensing elements for better flow rate, pressure and temperature management

Transducers

Stable and accurate control valve operation through electronic-pneumatic signal transmission

Spare Parts

OEM valves, actuators, and regulator spare parts for minimum variability, reduced costs and increased safety

Valve Controllers Services & Consulting

Fisher Specification Manager Software for Control Valves

Control Valve Sizing & Selection

Download secure and password-protected software from MyEmerson

Software Installation & Integration

Download files for DeltaV, HART and FOUNDATION Fieldbus host software

Emerson Solutions Center

Interact with Emerson experts to discuss challenges, create solutions, and develop product solutions

Spare Parts Quotation

Get pricing and answers to OEM spare parts-related queries

FAQs

What is a control valve positioner?

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.

What is a digital valve controller?

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.

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