Yet another real workhorse from the IV stables, IVTL model Butterfly valve incorporates the optimum design features to provide long trouble free service in the field. This general purpose soft seated Butterfly valve has a fully rubber lined single piece body with a centric disc construction and is available in wafer lugged style body pattern to ensure precise location in pipeline.

The body liner which also functions as the soft seat, come either in a replaceable version or an integrally moulded (bonded) version and offers 100 % bi-directional sealing against vaccum to rated pressures of PN 10 or PN 16.

The lugged version with threaded holes can be used as end of line valves or terminal end valves.

General design and manufacturing
Valve face to face dimensions

Top flange drilling
Valve inspection and testing
Flange standard conformity

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 API 609 category A/BS 5155/MSS SP-67
Short wafer or Wafer lugged as per ISO 5752 Tab 5 & API 609 category A
ISO 5211 part II
API 598
ANSI 150, DIN PN6/PN10/PN16,
JIS 5K /10 K
BS 10 Tab D & E, IS 6392 NP 0.6/1.0/1.6
For sizes 650 ANSI B16.47 Class 150
Series A / BS 3293 Class 150 and
Series B / API 605


1.

 Valve type :

Centric Disc Design Butterfly valve with a single piece Rubber lined
body
2. Body type : Wafer lugged (IVTL)
3. Seat type : Replaceable for sizes 50 NB to 600 NB PN 10 rating.
Bonded seat for sizes 40 to 1200 NB for all ratings.
4. End connection : Wafer lugged
5. Size range : 40 NB to 1200 NB
6. Pressure rating : 40 NB to 600 NB-PN 16 (max).
650 NB to 1200 NB-PN 10 (max).
7. Operating temperature range : -250 C to 2000 C (depending on MOC)
8. Seat leakage : Tight shut off
9. Operation : Handlever for sizes from 40 NB to 250 NB
Worm gear boxes for sizes from 40 NB to 1200 NB
Pneumatic / Electric actuator operation-optional
10. Standard Material of Construction (MOC)
    
  Body : CI / SGI / WCB / CF8 / CF8M
  Disc : SGI / WCB / CF8 / CF8M
  Seat : EPDM / Viton / Nitrile / Neoprene / Hypalon / Silicon
  Shaft : AISI 410 / SS 316 SH






  • Unique triple sealing system for shaft sealing, eliminates any fugitive emission or secondary leakage.

  • Self  lubricated PTFE lined bearings for both drive end and non-drive end shaft ensures minimum bearing friction torque.

  • Seat liner extending on to the flange contact faces, eliminates the need for separate flange gaskets during installation.

  • Controlled compression of the gasket face to offer optimum sealing & prevent gasket face crushing failure.

  • Bi-directional valve with tight shut off sealing capability to hold vaccum to rated pressure in either direction.

  • Excellent adaptability for actuated operation through standardised top flange mounting dimensions for actuator fitment.

  • Suitability for ON /OFF as well as throttling duties.

  • Choice of seat and disc materials to suit media conditions and service requirements.

  • The lugged wafer pattern ensures precise self  centering of valve between mating flanges.

  • Possibility of lower seat rating to obtain reduced operating torque and extended seat life for low operating pressures.
Specifications & dimensions are subject to change without prior notice