Shut-off, control and flow control mechanisms
Butterfly and control butterfly valves are used to restrict or completely block the flow of gases in order to adjust the flow to a plant’s operating conditions. They are available in stainless steel or black and galvanized sheet metal versions.
When closed, the butterfly valves are largely leak-proof (99.5 % of the valve surface). Valve profiles designed in accordance with the flow allow them to be used for high flow speeds, where there is relatively low turbulence and thus a low adjustment force. Flaps with multiple blades are constructed with maintenance-free angle joints to ensure low-backlash force transmission. The sturdy flap housings are made from steel sheeting with fixed flanges (round shape) or frames (square shape), with a connection as per DIN EN 12220 or DIN 24193/R1-R3, and are designed for direct installation in the pipe or channel system.
A large temperature range, a low coefficient of friction and excellent chemical resistance are the characteristic features of our solid-lubricated, maintenance-free structural bearings.
The standard version of our butterfly and control butterfly valves can be used at temperatures up to 300 °C (special version up to 450 °C). A wide variety of options are available for operating the valves. These include hand control for manual operation, as well as pneumatic and electric drives for automatic operation.