High-Performance Butterfly Valves
Fisher high-performance butterfly valves feature an eccentrically mounted disc and are known for their wide application range and shutoff capability. They are available for a variety of control and isolation service from cryogenic to high temperature and pressure classes to ASME CL2500 and sizes from NPS 2 to 72. High-performance butterfly valves are designed for isolation on/off service, as well as low-tier control. The valves feature keyed, double D, or square valve shafts. Shutoff is provided by a variety of seals which include metal, PTFE and fire-tested and cryogenic.
The Fisher 8532 high-performance butterfly valve has a splined shaft for throttling control. With a variety of seals, it can be used in most industry applications.
The Fisher 8560 high-performance butterfly valves have a splined shaft for throttling control. With a variety of seals, it can be used in most industry applications.
The Fisher 8580 rotary valves offer excellent throttling performance. An approximately linear flow characteristic provides precise throttling control.
The Fisher 8590 rotary valves offer excellent throttling performance with a spline shaft and a linear flow characteristic. Square and keyed shaft options are also available for use in on/off service.
The Fisher A11 butterfly valve features a keyed or square-end shaft for on/off applications. Available in flangeless or a single-flange style.
The Fisher A31A butterfly valve features a keyed shaft for on/off service. Available in either a flangeless or a single-flange.
The Fisher A31D double-flange butterfly valve features either a splined drive shaft or a keyed drive shaft for either throttling or on/off service.
The Fisher Control-Disk rotary valve allows you to control closer to the target set point, which results in a reduction in process variability.