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 molded spherical profile seat with a matching profile on the disc shoulder (both closed die molded) 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' versions with a host of seat and encapsulation material to cater to the majority of the chemical process industry requirements.
|General design and manufacture||API 609 Category A|
|Valve face to face dimensions||ISO 5752 Tab. 5 and API 609 Category A|
|Top flange drilling||ISO 5211 Part II|
|Valve inspection and testing||API 598 / ANSI / FCI 70-2|
|Flange standard conformity||ANSI 150, DIN PN 6 / 10 / 16, JIS 5K / 10K / 16K, BS 10 Tab. D & E
WRAS Materials available on request
|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||PN10 (max)|
|Operating temperature range||-25C to 180C (Depending on MOC)|
|Seat leakage||Tight shut off Handlever operation for 50NB to 150NB|
|Operation||Worm gear operation for 50NB to 350NB |
Pneumatic / Electric actuator operation - optional
|Available material of construction (MOC)|
|Body/Disc||SGI / CF8 / CF8M|
|Disc||SGI + Rubber encapsulation|
|Seat||AISI 410/17-4ph/AISI316 (Other materials available on request)|