Main Features
- 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 316C (600F). Bore seal is available on FBD valves for class V shutoff above 316C (600F).
Specifications
- Valve sizes: Casting FBT NPS 8x12 to NPS 42x48; Forging FB NPS 8x12 to NPS 36 x 36
- Pressure Rating: ANSI CL150-600
- End Connection Styles: flanged, butt-welded, RTJ
- Material: casting FBT WCC/LCC/CF8M; Forgings FB WCC/LCC/CF8M/CF3, etc
- Other configurations: Contact us for more information.
Applications
- 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.
