One or two blade/flap flange mounted stack damper for gas isolation

To minimize heat loss from the boiler and to prevent the ingress of rain water Orbinox have a range of stack isolating dampers with stacks from 300mm diameter to in excess of 7 m.

The stack isolating damper can be of the butterfly, twin louvre, multilouvre or twing flap design and can incorporate an automatic pressure relieving system to prevent over pressurization and damage to the turbine or boiler.