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Volume Measurement and Control Dampers for Circular Duct ATSPI
This page contains the ATSPI range of circular Iris Dampers which are used for Flow Measurement and Flow Control. The air flow through the dampers is maintianed centrally in the duct due to the iris damper function and therefore the dampers are quiet in operation, even at high throttling levels
The damper incorporates pressure tappings to allow accurate flow measurement and maximum air temperature allowed is 70 degrees C
Minimum straight duct distances must be observed when installling the dampers to ensure correct flow measurement characteristics
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