The Fisher Control-Disk valve (photo) offers excellent throttling performance and is ideal for applications that involve fast processes and varying pressure drops. The valve’s wide control range is twice that of traditional butterfly valves for better adherence to set point, which allows control closer to the target set point, regardless of process disturbances. When paired with a Fisher spring-and-diaphragm actuator and Fieldvue digital valve controller, the assembly can capture and deliver data to AMS ValveLink software, which provides an accurate picture of the valve, actuator and digital-valve-controller performance. The valve body meets PN 10 through PN 40, CL 150, and CL 300 ratings. Face-to-face and raised-face dimensions meet EN 593, API 609 and MSS-SP68 standards. — Emerson Process Management, Baar, Switzerland