Wartsila, Butterfly Valves for Marine Wärtsilä manufactures a range of Shipham Valves, including Butterfly valves. These can either be gearbox or lever operated, we can also manufacture Daytona Butterfly Valves. Size Range: DN50 – DN1150 / 2” – 42” Pressure Rating: Class 150, 300 Pressure testing: API 598 / BS EN 12266-1:2003 Materials : Bronze […]