Metal To Metal Seated / Spherical Disk Butterfly Valve


Metal To Metal Seated / Spherical Disk Butterfly Valve

 
 

Conformity to Codes and Standards

General design and manufacturing
Pressure temperature rating
Valve face to face dimensions
Valve inspection and testing
Flange standard conformity
Fire safe testing

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API 609 category B
ANSI B 16.34
API 609 category B / ANSI B 16.10
API 598 / ANSI / FCI 70-2
ANSI B 16.5 Class 150 & Class 300
API 607

Technical Specifications

1.

Construction type : Double offset Disc Design High Performance Butterfly valve
2. Valve type & models : IVEX-F-Fire safe seat version
IVEX-T-Soft seated PTFE seat version
IVEX-M-Metal to metal seated version
3. Body type & end connection : Wafer sandwiched or Wafer lugged
4. Size range : 80 NB to 600 NB
5. Seat leakage performance : Better than class VI for IVEX-F, IVEX-T
Class IV for IVEX-M
6. Pressure rating : ANSI 300 class
7. Operating temperature range : -500 C to 2200 C for IVEX-F(Depending on MOC)
-500 C to 2200 C for IVEX-T (Depending on MOC)
-500 C to 6000 C for IVEX-M (Depending on MOC)
8. Operation : Handlever for sizes 80 NB to 150 NB
Worm gear box for sizes 80 NB to 600 NB
Pneumatic / Electric actuator operation - optional
9. Standard Material of Construction (MOC)    
  Body : WCB / CF8/ CF8M
  Disc : WCB / CF8/ CF8M
  Seat : PTFE / Glass filled PTFE
 

 
   

Metal To Metal Seated / Spherical Disk Butterfly Valve Feature

  • Double offset disc design with a spherical profile seat eliminates seat wear and ensures perfect sealing every time.
  • Double offset disc design with a spherical profile seat eliminates seat wear and ensures perfect sealing every time.
  • Availability of wafer lugged body with through drilled or threaded holes.
  • Available in 3 distinctly different seat version viz. PTFE seat, Fire Safe seat and Metal to Metal seated.
  • Self- lubricated drive end and non-drive end bearings for IVEX ?T and IVEX-F models and galling free metal bearing for IVEX-M versions.
  • Stuffing box type gland sealing to enable field adjustment of shaft sealing.
  • Gland packing standardised on graphoil rings (non-asbestos) to offer widest operating temperature Split ring type thrust pad provided for the drive end shaft prevents axial movement of the disc as well as ensures the required ?anti-static? feature for the valve.