Fisher™ 8532 High Performance Butterfly Valve MSS SP-61, Class IV (FCI 70-2), Class VI (FCI 70-2), Flow Ring
The Fisher 8532 high performance Butterfly valve offers outstanding performance under extreme pressure and temperature conditions. The 8532 valve maintains tight shutoff, is available in a fire-tested construction, and can be specified for cryogenic applications. Available as either a flangeless (wafer style) design, single flange (lugged), or Double Flanged design.
Certifications | SIL capable, PED, CRN, Fugitive Emission, NACE, ATEX, CUTR, Fire Safe |
Critical Service | General Service |
Flow Characteristics | Linear |
Material | Carbon Steel, Stainless, Alloy |
Operating Temperature | Standard Temperature, High Temperature, Cryogenic |
Power Source | Electric, Hydraulic, Pneumatic, Electro-Hydraulic |
Pressure Class | 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), Flow Ring |
Standards | B16.34 |
Stem | Live Loaded, Adjustable Packing |
Valve Size | NPS 14, NPS 16, NPS 18, NPS 20, NPS 24 |
Valve Size Standard | NPS |
Other Configurations |
Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product. |
POSI-SEAL A31D and 8580 & 8532 Valve Comparison
The following sections are intended to provide a nominal comparison between the Fisher POSI-SEAL A31D valve and the Fisher 8580 & 8532 valves.
Scope, Size, and Class
Sizes NPS 3 – 24 CL150 and 300 of the A31D valve will be made obsolete and replaced with the 8580 and 8532 valves in equivalent size and class. The 8580 valve covers NPS 3 – 12 and the 8532 valve covers NPS 14 – 24.
Capacity (Cv)
The flow capacity of the A31D valve is not equivalent to the 8580 valve. However, the A31D and 8532 have identical flow coefficients. Please see Catalog 12 Section 1.
Actuator Sizing (Torque)
The actuator sizing for the A31D valve and 8532 valve is the same. The sizing coefficients, breakout torque, and dynamic torque are also the same.
The actuator sizing for the A31D and 8580 are different. Please see Catalog 14 Sections C & D.
WISDOMLONG TECHNOLOGY CO.,LIMITED
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