Additional information
Variant
Manual gearbox operation
Color
Option 1, Option 2
Double Concentric Butterfly Valve (BA)
The Duvalco Double Concentric Butterfly Valve (BA) is a versatile valve designed for general-purpose flow control across a wide range of applications, including water, oil, and gas (W.O.G). Its concentric design offers reliable sealing and cost-effective performance in systems where moderate pressure and temperature conditions are present.
Design type
Concentric butterfly valve with elastomer-lined sealing
Face-to-face dimensions
EN 558 Table 2, Series 20
Flange connection
EN 1092-2, PN10/PN16
Size Range
DN50 to DN2000
Body material
Ductile iron
Disc material
Ductile iron, stainless steel, or other materials upon request
Seat material
EPDM, NBR, or other elastomers depending on medium compatibility
Working medium
Water, Oil, Gas (W.O.G)
Working medium
Water, Oil, Gas (W.O.G)
Working pressure
Up to 16 bar
Working temperature:
-10°C to 100°C
Coating
Fusion-bonded epoxy with WRAS approval
Water contact materials
comply with BS 6920
Testing:
Hydraulic and performance tested to EN 12266-1
Top flange
ISO mounting flange in accordance with ISO 5211 for actuator compatibility
