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Fisher™ 8580 High Performance Butterfly Valve
The Fisher 8580 high performance Butterfly valve provides the capability for enhanced shutoff and features an eccentrically-mounted disk with either a soft or metal seal.
Experience excellent throttling and on/off performance with this control valve.
Fisher™ 8580 High Performance Butterfly Valve

Specs

Certifications
SIL capable, PED, CRN, Fugitive Emission, NACE, ATEX, CUTR
Critical Service
General Service
Flow Characteristics
Linear
Material
Carbon Steel, Stainless, Alloy
Operating Temperature
Standard Temperature, High Temperature
Power Source
Electric, Hydraulic, Pneumatic, Lever, Gear, Electro-Hydraulic
Pressure Class
PN, ASME
Process Connection Type
Flanged, Single Flanged, Double Flanged, Lugged, Wafer
Seat / Seal Type
Metal, Soft
Shutoff Class
MSS SP-61, Class IV (FCI 70-2), Class VI (FCI 70-2)
Standards
B16.34
Stem
Live Loaded, Adjustable Packing
Valve Size
NPS 2, NPS 3, NPS 4, NPS 6, NPS 8, NPS 10, NPS 12
Valve Size Standard
NPS, DN
Other Configurations
Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.

Features

  • The actuator/valve assembly action can be converted from push-down-to-open to push-down-to-close, or vice versa, without additional parts.
  • Both the metal and soft seal rings have pressure-assisting sealing action that ensures tight shutoff regardless of pressure drop.
  • Standard valve construction includes conductive packing to provide electrical bonding for hazardous area applications.
  • The valve will operate at elevated temperatures, with the appropriate trim components.
  • Additional travel indication can be achieved by using the indication line on the shaft, along with the disk position markings on the packing follower.
  • Redundant shaft retention provides added protection. The packing follower, anti-blowout ring, and shaft groove interact to hold the shaft securely in the valve body.

Education

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