Butterfly valves

DUVALCO Butterfly valves - Concentric BA/S59

Double flanged type butterfly valve with centric disc and bonded liner. 100% bi-directional bubble tight shut off.
DUVALCO Butterfly valves - Concentric MSJ/S57

Wafer type butterfly valve, semi lug, with centric disc and bonded liner. 100% bi-directional bubble tight shut off.
DUVALCO Butterfly valves - Concentric LT/S55

Full wafer lug type butterfly valve with centric disc and bonded liner. 100% bi-directional bubble tight shut off.
DUVALCO Butterfly valves - Concentric Mono/S51

Mono flange type butterfly valve with centric disc and bonded liner. 100% bi-directional bubble tight shut off.
DUVALCO Butterfly valves - Eccentric/Double Eccentric NSJ

The NSJ has an eccentric design. The dex series have a double eccentric design. Seat change is extremely simple. 100 % tight shut off.
Flange Protection Seals

Complete programm available upon request.
Bolts, nuts and rings

Complete program, stainless steel A2 and A4 available from stock.
Sealings

Several types available from stock.