Tel: +44 (0) 2890 020190
PTFE Lined Butterfly Valve

The ultimate in corrosion resistant Butterfly valve

Intervalve's PTFE lined butterfly valve model IVTFE provides an optimum solution to the corrosion problems encountered by the chemical and process industries with conventional butterfly valves. The PTFE seat liner covers the entire wetted surface of the body and extends around the flange faces thus eliminating the possibility of any media contact with the body.

The fully circular backup 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.

The body is designed to fit between all international flange standards.

Conformity to codes and standards:

General design & manufacturing API 609 category A
Valve face to face dimensions ISO 5752 Tab 5 & API 609 category A
Top flange drilling ISO 5211 part II
Valve inspection & testing API 598 / ANSI / FCI - 70-2
Flange standard conformity ANSI 150, DIN PN 10 / PN 16

Technical Specifications

Feature Value
Construction type Centric disc design butterfly valve with PTFE lined body
Body type & end connection Wafer short, 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 -25C to 200C (Depending on MOC)
Seat leakage Tight shut off (better than class VI as per ANSI / FCI 70-2)
Operation Handlever for sizes up to 200 NB
Worm gearboxes for 50 NB to 300 NB
Pneumatic / Electric actuator operation - optional
Available material of construction (MOC)
Body/Disc SGI / WCB / CF8 / CF8M / AB2 / Duplex / Super Duplex (1A-6A) / Hastelloy
Disc also available in Titanium
Shaft AISI 410 / SS 316 SH/ Monel/ UNS32760/ Titanium/ Hastelloy
Available material of construction (MOC)
Body/Disc WCB / LCB/ CF8 / CF8M
Shaft AISI 410 / SS 316 SH
Other materials available on request


Tel: +44 (0) 2890 020190
Unit 4, 38-40 Duncrue Crescent
Belfast, BT3 9BW
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