Balancing airflow damper PRA

measuringfor ships

Airflow balancing, adjustment and measurement functions Manual adjustment, no tools required Accurate airflow measurement based on flow nozzle principle Minimized sound generation due to conical adjustment section Temperature operation range from -30 °C to +70 °C Self-locking adjustment mechanism, position can be ensured with locking screw Duct cleaning enabled through the unit up to size 315 mm Adjustment position marker indicates proper position e.g. repositioning after cleaning Inlet and outlet spigots equipped with integral rubber gaskets Used also as supply air jet nozzle for air diffusion in large spaces Classification of casing leakage EN 1751 class C PRODUCT MODEL PRA unit integrated with cleaning access panel