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Intervalve’s PTFE lined Butterfly valve model IVTFE provides an optimum solution to the corrosion problems Encountered by the chemical process industries with conventional Butterfly valves. The PTFE seat liner covers the entire wetted surface of the body and extends on to the flange contact faces, thus eliminating possibility of any media contact with the body metal. Its split body makes it easy for seal replacement during maintainance.

The fully circular back up elastomer and live loaded disc shoulder sealing ensures bubble tight closing of the Valve with zero shaft leakage. The valve is adaptable for ON / OFF as well as control duty and can be fitted with actuators and accessories as required to meet the specific duty conditions.

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 => Short wafer, 2 piece body
Seat type => PTFE / GFT with viton backup ring
Size range => 50 NB to 300 NB
Pressure rating => PN 10 (max)
Operating temperature range => -400 C to 2000 C (depending on MOC)
Seat leakage => Tight shut off (better than class VI as per ANSI/FCI 70-2)
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
Disc
Seat
Shaft
=> SGI/WCB/CF8/CF8M
CF8/CF8M/Other special alloys
PTFE
AISI 410 / SS 316 SH
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