Rotary control valve

Emerson Process Management announces extended line sizes for the Fisher Control-Disk valve. The valve's throttling performance makes it suitable for applications that involve fast processes and varying pressure drops, such as in the hydrocarbon, refining, chemical, pulp and paper, and metals and mining industries.

The wide control range is twice that of traditional butterfly valves for better adherence to set point. This improved capability allows control closer to the target set point, regardless of process disturbances, which results in a reduction in process variability.

The valve is reliable and has low maintenance requirements, especially when it is paired with a Fisher actuator and Fieldvue digital valve controller, resulting in high plant availability. This assembly can capture and deliver diagnostic data to ValveLink software, providing an accurate picture of valve, actuator, and digital valve controller performance. This makes it a core component of Emerson’s PlantWeb digital plant architecture.

Designed as a direct replacement valve, existing piping can be used. Both soft and metal seals are available to address specific application needs. The new Control-Disk valve sizes are designed for installation between ASME Class 150 or Class 300 raised-face flanges with flangeless (wafer) or single flange (lugged) body designs. Face-to-face dimensions are in compliance with API 609 and MSS SP-68 standards.

Edited by: Constanze Schmitz