Circular Variable Air Volume regulator, KOOLAIR, model RVV, from Dia-100 to 630, incorporating an elliptical regulating damper with gasket in its perimeter cruciform sensor measuring differential pressure and proportional actuator, upper and lower limits to be calibrated in factory.
RVV variable volume regulator is suitable for both supply and return work, they can incorporate thermal and sound insulation (RVV-D), with an extra silencer RVV-DL
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