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To prevent back draughts. Lightweight blades and square ...
Description:
To prevent back draughts. Lightweight blades and square opening provide maximum free area when the fan is operating. Blades close under gravity when the fan airflow ceases. All components are light grey and UV stabilised to provide a long life. ...
Maintenance-free, low power consumption, rotary damper/louvre actuators, compatible ...
Description:
Maintenance-free, low power consumption, rotary damper/louvre actuators, compatible with all leading makes of HVAC controls. Minimum life of 60000 operations. Stall torque technology requires no end switches. Adjustable U-clamp accepts round or square shafts. Visible position indicator. Pushbutton manual override. ...
Maintenance-free, low power consumption, rotary damper/louvre actuators, compatible ...
Description:
Maintenance-free, low power consumption, rotary damper/louvre actuators, compatible with all leading makes of HVAC controls. Minimum life of 60000 operations. Stall torque technology requires no end switches. Adjustable U-clamp accepts round or square shafts. Visible position indicator. Pushbutton manual override. ...
For air extraction where up to 90% free ...
Description:
For air extraction where up to 90% free area is required.Aluminium eggcrate core 12mm x 12mm with a 32mm flange, pre-drilled for screw fixing. Extruded aluminium frames fully welded and linished to conceal the mitred corners. Stove enamelled silver or ...