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Fisher A11 POSI-SEAL® High Performance Butterfly Valves

Test Product

The Fisher A11 High-Performance Butterfly Valve maintains tight shut-off, and can be specified for a wide range of pressure and temperature conditions, including cryogenic applications.

Features include

  • The A11 valve is available in either a wafer or a single-flange design (single-flange only for CL600, 900, and 1500). A square or keyed shaft can combine with a variety of handlevers, handwheels, or pneumatic piston diaphragm actuators.
  • A splined shaft can combine with a variety of spring-and- diaphragm or pneumatic piston actuators. These combinations help make the A11 valve a reliable, high-performance butterfly valve for both throttling and on-off applications in the process industries.
  • The A11 valve can be supplied with one of several dynamic seals that can be used in a variety of demanding applications. With the appropriate seal selection and materials of construction, the pressure-assisted seal helps provide excellent shutoff against the full ASME class pressure range for the A11 valve.
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