Fisher FB Angle Valves

Fisher FB Angle Valves

Fisher™ FB angle valves are used with compressible fluids on special applications requiring maximum noise attenuation capability and high capacity. Typical applications include main steam reducing valves and compressor bypass valves. FB valves are also commonly used for sour gas applications in petrochemical and gas processing plants.

Brochure Fisher Optimized Antisurge Control Valves

Any questions?

Erik Rune
Solution Seller
Phone. +46 54-57 92 31

Martin Pettersson
Solution Seller
Phone. +46 54-57 92 40

Niklas Pettersson
Account Manager
Phone. +46 54-57 92 09

Rickard Andersson
Account Manager
Phone. +46 40-33 02 34

Morten Noppenau
Country Manager Askalon Denmark
Phone. +45 2121 3491

Peder Hvidberg
Area Account Manager West
Phone. +45 2178 5053

Taneli Luhanko
Inside Sales Engineer
Phone. +358 207 416 202
Mob. +358 40 757 4208

Certifications CUTR, PED, CRN, Fugitive Emission, NACE
Critical Service Noise Abatement, Steam Conditioning, Outgassing
Flow Characteristics Linear
Material Carbon Steel, Stainless, Duplex, Alloy, Cast Iron
Operating Temperature Standard Temperature, High Temperature
Pressure Class ASME
Process Connection Type Flanged, Butt Weld, RTJ
Shutoff Class Class II (FCI 70-2), Class III (FCI 70-2), Class IV (FCI 70-2), Class V (FCI 70-2)
Valve Size 8 x 12, 10 x 16, 12 x 16, 12 x 18, 12 x 20, 16 x 24, 20 x 30, 24 x 36, 30 x 36, 36 x 42, 42 x 48
Valve Size Standard NPS


  • Whisper Trim™ III or WhisperFlo™ cages used in FBD or FBT valves can reduce noise produced by high flow rates and large pressure drops.
  • Regeneration of valve noise is significantly reduced by reducing the outlet flow velocity with an expanded outlet design.
  • The design eliminates gasketing problems caused by thermal expansion and contraction of long parts, such as the cage assembly.
  • The ENVIRO-SEAL™ or HIGH-SEAL packing system options are available. These packing systems provide excellent sealing, guiding, and loading force transmission.
  • A spring-loaded seal ring with PEEK anti-extrusion rings is available on FBT valves for Class V shutoff up to 316°C (600°F). Bore seal is available on FBD valves for Class V shutoff above 316°C (600°F).

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