Plug type

Briflon® FEP/PFA Lined , One PC Cast Ductile Iron, Bi-directional, Quarter Turn, Full Flow Efficient, Pneumatically / Electrically Operated , On-OFF or Throttling type Taper Plug Control Valve.


  • Cross-Section Drawing
  • Features & Benefits
  • Lining Specification
  • Standard Followed
  • Optional Accessories
  • Advantage
  • Applications
  • Low torque operation
  • One Pc Ductile Iron Casting Body with corrosion resistance PU paint
  • PTFE Diaphragm for secondary seal provides static and self adjusting dynamic stem seal
  • FEP/PFA encapsulated taper plug provides positive circumferential in line sealing
  • Fully locked in, unpigmented FEP/PFA uniform lining throughout body and face area helps prevent blowout or collapse of the liner under full vacuum/high pressure
  • Unpigmented FEP/PFA lining tested at 20,000 Volts for defects, is made from highly corrosion resistance FEP (150°C) or PFA (200°C)
  • Standard Port Design

Liner Locking

The lining is securely locked into the deep machined groove slot into the body & holes in casting plug under melting processible of FEP or PFA. This prevents liner to collapse or blow out under full vacuum/high pressure applications in conjuction with high temperature

Large Contact Area

The full circumferential sealing area is created by the interface between the taper plug & body liner. Due to the compression sealing the valve is used in either direction.(Bi-directional)


Cavityless design helps to prevent accumulation of material between the body liner & taper plug

Large Port Area

Ensures low pressure drop with higher flow rate

Double Sealing Arrangement

Primary seal between the taper plug & body liner. The secondary seal is reversed V lip diaphragm which is pressurized and ensures excellent stem seal

Standard Design

The Briflon® Fully Lined Plug Valve are designed in accordance with flange dimension of ANSI B16.5 & face to face dimension of ANSI B16.10 permits these valves to replace with any standard plug valves without altering existing piping

  • Manufacturing: - BS 5353
  • Testing: API 598
  • Flange dimensions: ANSI B16.5
  • Face to Face: ANSI B16.10