CONTROL-DISK | Fisher™ Control-Disk™ Rotary Valve | Fisher

Fisher™ Control-Disk™ Rotary Valve

The 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 spring in the outboard shaft provides support to the drive train and disk; enabling the shaft to be installed in both horizontal and vertical orientations with no detriment to performance or cycle life.
• Trim and bolting materials are available for applications involving sour liquids and gases.
• The splined shaft with clamped lever and single-pivot linkage reduces lost motion between the actuator and the valve shaft.
• Both the metal and soft seal rings have a pressure-assisting sealing action that ensures tight shutoff regardless of pressure drop.
• The improved expansion pin system ensures there is a positive; durable connection between disk and shaft. This connection reduces backlash and wear in the drive system; optimizing long-term performance. It also makes disassembly for maintenance quick
• The powder paint finish offers an excellent corrosion-resistant finish to all steel parts.
• Additional travel indication can be achieved by using the indication line on the shaft; along with the disk position markings on the packing follower.