Additional information
Variant
Manual gearbox operation
Color
Option 1, Option 2
Concentric Full Lug Type Butterfly Valve (LT)
The Duvalco Concentric Full Lug Type Butterfly Valve (LT) is a robust and versatile valve designed for reliable isolation and flow control in water, oil, and gas (W.O.G) applications. Its full lug body design allows installation in dead-end service and facilitates easy maintenance without dismantling the entire pipeline. The concentric, elastomer-seated design ensures tight shut-off, dependable performance, and cost-effective operation under moderate pressure and temperature conditions.
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
ASME Class 150 / 300 available upon request
Size Range
DN50 to DN1200
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 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
