and the second largest in asia. safety systems in the motorway tunnel include automated flood control gates, eight sets of air quality monitoring equipment (aqme) that monitor carbon monoxide, nitrogen monoxide and particulate levels, -hour scada monitoring and surveillance, ventilation and escape shafts...
two or three dampers arrangement with configuration to suit the plant room ductwork. dampers are sized for m/sec velocity. dampers are with opposed airfoil blades, made of aluminium alloy extrusions and are assembled in aluminium alloy framework. optional: low leakage dampers for hospital / pharmaceutical...