Deutsch 
English Siemens VKF1xxx Butterfly valves in intermediate flange design for mounting into gas trains, e.g. as gas control valves, air control valves, or flue gas valves for exhaust gas recirculation. For applications with a large control range, also suitable for mildly aggressive biogases and recycled gases.
Features:
• DN32...DN200
• Effective rotation angle 5…85°
• Suitable for gases in the I…III range, air and flue gas up to 180°C
• Including coupling for D-shaft Ø 10 mm and ASK33.1 mounting plate
• The option is available to install the butterfly valve in the next nominal size
up to ensure it is positioned more securely
• Installation in ISO 7005-2 (PN10/PN16) and ANSI flange connections
Features:
• DN32...DN200
• Effective rotation angle 5…85°
• Suitable for gases in the I…III range, air and flue gas up to 180°C
• Including coupling for D-shaft Ø 10 mm and ASK33.1 mounting plate
• The option is available to install the butterfly valve in the next nominal size
up to ensure it is positioned more securely
• Installation in ISO 7005-2 (PN10/PN16) and ANSI flange connections