Intervalve Butterfly Valve model IVGE / IVTLE is an economical answer to the corrosion problems faced by Chemical process industries with conventional metal seated Butterfly valves. The valve’s unique design totally eliminates media contact with any metallic surface of the valve. The valve has a fully rubber lined body and a rubber encapsulated disc with a square slot for the drive end shaft.

The integrally moulded spherical profile seat with a matching profile on the disc shoulder (both closed die moulded) ensures perfect sealing with minimum operating torque and prevents any fluid ingress into the shaft bores.

The valve is available in ‘wafer’ as well as ‘wafer lugged’ version with a host of seat and encapsulation material to cater to majority of the chemical process industry requirement.

Comfomity to code & standards

General design and manufacturing Valve face to face dimensions Top flange drilling Valve inspection and testing Flange standard conformity
API 609 Category A ISO 5752 Tab.5 and API 609 Category A ISO 5211 Part II API 598 / ANSI / FCI 70-2 ANSI 150,DIN PN 6/10/16,JIS 5K /10K/16K
BS 10 Tab.D & E , IS 6392 NP 0.6/1.0/1.6

Technical specifications

Valve type => Centric Disc Butterfly valve with rubber lined body
Body type => Single piece, Short wafer (IVGE) or Wafer lugged (IVTLE)
Seat type => Integrally moulded with body
Size range => 50 NB to 350 NB
Pressure rating => PN 10 (max)
Operating temperature range => -500 C to 1800 C (depending on MOC)
Seat leakage => Tight shut off
Operation => Handlever operation for 50 NB to 150 NB
Worm gear operation for 50 NB to 350 NB
Pneumatic / Electric actuator operation-optional
Standard Material of Construction (MOC)Body
SGI + Rubber encapsulation
EPDM / Viton / Nitrile / Neoprene / Hypalon
AISI 410
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