Butterfly Valves

Double Offset Butterfly Valve

IO Valve’s DOBFV Valve double offset disc design minimizes contact between the disc and seat during operation, reducing friction and wear. This ensures smooth operation, longer seal life, and reliable performance even when the valve remains open for long periods or is used for flow control.

Size Range: DN 200 – 2400 Pressure Rating: PN 10|16

Material of Construction

Design Standard : EN 593|IS 13095

Face to Face : BS EN 558 Series 13 &14

Body : Ductile Iron GGG 50

Disc : Ductile Iron GGG 50

Shaft : SS 420

Body Seat Ring : SS 304 Weld Overlay

Retainer Ring : SS 304

Seat : EPDM

Bearing : Tin Bronze

Coating : Epoxy Powder Coating Min.250µ

Flange Drilling : EN1092-2

Testing : EN 12266-1

Dry Disc Hub

A sealed dry hub design with multiple O-rings protects the shaft and bearings from line media and external moisture. This results in smooth operation and consistently low operating torque throughout the valve’s service life.

Advanced Coatings

The ductile iron body is coated with Fusion Bonded Epoxy for excellent corrosion protection. Controlled coating application and testing ensure durability and long-term reliability in water service

Easy Maintenance

The valve is designed for minimal maintenance, with key components accessible without draining the pipeline. Field servicing and seal replacement can be carried out easily using standard tools.