The PTFE Lined BFV is designed specifically for use in chemically aggressive applications such as acids, chlorine, and alkalis. The single piece stem and disc design eliminates crevice corrosion and ensures reliability and durability in applications for corrosive fluids. The PTFE lined BFV is suitable for bidirectional shut-off or dead-end service applications.
Features & Benefits
- Single piece shaft/disc improves reliability by eliminating crevice corrosion
- Live-loaded, self-adjusting seal ensures tight shut-off and reduces maintenance
- Resilient seat backers provide flexibility and improve sealing performance
- Field replaceable seat minimizes downtime
- ISO 5211 mounting pattern allows direct mounting of various actuation options
- Wafer or lugged flange styles accommodate various installation types
- Hand lever with notch plate and lockout provision provides operator and maintenance safety
Product Information
Technical Details & Standards
- Standard sizes available: 2”–24”
- Ductile iron or CF8M (316SS) body
- PTFE coated or polished 316SS disc
- 316SS shaft, welded to disc
- PTFE seat with Viton backer
- -20°C to 180°C (0°F to 350°F ) standard temperature rating
- 2”-6”=232psi / 8”-12”=150psi / 14”- 24”=125psi standard pressure ratings
- ASME B16.5 Class 150 flange pattern
- Meets API 609 design requirements
Options & Accessories
- PTFE seat materials with various backers including BUNA-N, EPDM, or Aflas for process compatibility
- Pneumatic or electric actuators for automated or remote control
- Gearbox and chain wheels for easy manual operation
- Switch box for valve position feedback
- Positioner for process flow control
Related Products
Industrial BFV
- Process industries – various applications
- Resilient seat and SS disc
- Ductile iron body
- Up to 250psi
- 2” to 72″
High Performance BFV
- Process industries – high pressure, high cycle applications
- RTFE or metal seat
- Stainless or carbon steel body
- Up to 285psi
- 2” to 24”
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