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Control Disc

Compact Size

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Rotary Valve Features & Benefits

New Platform (A81, 8580, Control-Disk Valve)		Benefits
Control-Disk Valve available	→	Inherent =% flow characteristic / large control range
One body for metal and soft seals	→	Only one body needs to be stocked
No preferred shaft orientation	→	Vertical mounting with improved cycle life
Taper expansion pin for disk-to-shaft connection	→	Optimized design & easier maintenance
Multi-rated wafer body for NPS 2 - 6 sizes	→	Listed at CL150 pricing
ASME & EN bodies available	→	Meets global standards
Line centering clips offered on wafer bodies	→	Easy installation
Alloy now available as standard	→	Competitive pricing, easy selection, and delivery
Travel indication feature for tracking disk position	→	Provides redundant travel indication
Fire-Tested seal being developed	→	Required feature
NACE constructions offered: MR0175-2002, MR0103, MR0175-2003, & MR0175 / ISO 15156	→	Meets all current NACE requirements

2052 Features		Benefits
Compact Design	→	Easy installation without piping modifications
No bench set required and nested springs	→	Simple sizing, selection, and maintenance
Low Temp (-45°C) with standard diaphragm	→	Wider application coverage with standard offering
Namur VDI/VDE 3845 accessory mounting	→	Flexibility for industry standard equipment
ISO 5211 mounting & optional square insert	→	Industry standard allowing competitive mounting
Metric fasteners as standard	→	Meets global standards
Stainless steel casing bolts	→	Wider application coverage with std offering
Same design features in all sizes	→	Easier to train maintenance staff
Improved positioner feedback	→	Improved performance
Balanced Torque (spring vs air torque)	→	Easy to size and select
3 sizes, 2 spring options	→	Easy to size and select with fewer spare parts
Compatible with existing Fisher valves	→	Forward and backward compatibility
2 & 4 Bar supply pressure	→	Higher output torque with smaller package, flexible for use with lower pressure

Excellent Control in the 15 to 70% Travel Range

• Equal percentage flow characteristic

• Improved throttling range

       • 15-70% valve travel range
       • Allows for control over a wide range of conditions
       • Permits installing line-sized butterfly valves without sacrificing control

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Outboard shaft positions drive shaft

• Mount actuator in either horizontal or vertical position

• Disk always centered by spring loaded shaft

• Actuator can be left or right hand mounted

•The spring in the outboard shaft positions the drive train and disk when the shaft is in verticle or horizontal orientation

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Improved Sealing Technology

Customer Need:

• Excellent Shutoff

• Long seal life

• Interchangeable

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Value Message

• Long cycle life while still providing excellent shutoff. No need to purchase a new body for change in seals

Certified ENVIRO-SEAL^® Emissions Control Packing

• Excellent Emissions Capabilities

The optional ENVIRO-SEAL^® packing systems, are designed with very smooth shaft surfaces and live-loading to

provide improves sealing, guiding, and loaded force transmission. The seal of the ENVIRO-SEAL^® system can control

emissions to below 100 ppm (parts per million)

No Backlash Lost Motion

• Elimination of lost motion and backlash

   • Clamped spline connection
   • High-quality actuator rod-end bearing
   • Improved pin connection of shaft and disk
       • PTFE lined PEEK bearings
       • Premium bushings for the actuator lever

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