Fisher® Control-Disk Rotary Valve0 pages

Product Bulletin

Control-Disk Valve

51.3:Control-Disk
July 2012

D103297X012

Fisherr Control-Disk™ Rotary Valve
The Fisher Control-Disk rotary valve offers excellent
throttling performance. An equal percentage flow
characteristic provides an improved throttling range
comparable to that of a segmented ball valve. This
improved capability allows you to control closer to the
target set point, regardless of process disturbances,
which results in a reduction in process variability.
The valve body meets PN 10 through PN 40, CL150,
and CL300 ratings. Face-to-face dimensions meet
EN 558, API 609, and MSS-SP68 standards. Line
centering clips provide for versatility to mount and
align the same wafer style valve body in different
piping configurations (ASME and EN ratings).
W9425-2

The Control-Disk rotary valve features an
eccentrically-mounted disk with either soft or metal
seal, providing capability for enhanced shutoff. The
interchangeable sealing technology allows for the
same valve body to accept both soft and metal seals.

WAFER STYLE

The actuator sizing and selection process is improved
by simply reading a table for information.

W9418-2

Control-Disk Valve
Features

Equal percentage flow characteristic– An equal
percentage flow characteristic provides an
improved throttling range comparable to that of a
segmented ball valve. This improved capability
allows you to control closer to the target set point,
regardless of process disturbances, which results in
a reduction in process variability.

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SINGLE FLANGE STYLE

Global Standards– The valve meets API, ASME, and
EN standards, making it suitable for use in all world
areas.

PEEK/PTFE bearing as standard– The PTFE-lined
PEEK bearing is a low friction, low wear bearing. It
allows the valve to operate under high pressure
drops for a high cycle life while maintaining low
torque. The “drop-in” bearing design enables fast,
easy maintenance.