Tel: +44 (0) 2890 020190
Double Flanged Butterfly Valve

Type IVDF double flanged butterfly valve incorporates design features to provide long trouble free service.

Construction is a one piece cast body with a full width integrally bonded liner offering a 100% bi-directional sealing for vacuum and rated pressures up to PN 20.

Alignment to fit all international flange standards.

Conformity to codes and standards:

General design & manufacturing BS 5155 / API 609
Top flange drilling ISO 5211 part II
Valve inspection & testing API 598 / BS 6755
Flange standard conformity ANSI 150, DIN PN6 / PN10 / PN16 / PN25, JIS 5K / 10K / 16K, ANSI B16.47 series A & B WRAS Materials available on request

Technical Specifications

Feature Value
Valve type Centric disc design butterfly valve with a single piece rubber lined body
Body type Double flanged short
Seat type Bonded on all sizes
End Connection Flanged
Size range I50 NB to 2400 NB
Pressure rating To PN 20
Operating temperature range -25C to 200C (Depending on MOC)
Seat leakage Tight shut off
Operation Handlever for sizes 50 mm to 200 mm
Worm gearboxes for sizes 50 NB to 2400 NB
Pneumatic / Electric actuator optional
Available material of construction (MOC)
Body/Disc SGI / WCB / LCB / CF8 / CF8M /AB2 / Austenitic Stainless Steel (6MO) / Super Duplex
Seat EPDM / Nitrile / Viton / Silicon
Shaft AISI 430 / 17-4 / Monel / Super Duplex
Other materials available on request


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