Operative connection device

An operative connection device of a connection and fluidic distribution system comprising one or more rigid channels, mutually fluidically connected, through which air flows, the operative connection device extending along an axis and comprising:

• a rigid channel element extending along the axis between a coupling end engageable with one of the one or more rigid channels, and a working end, wherein the rigid channel element has a square section, the rigid channel element comprising four longitudinal surfaces comprising operative holes that are engageable by working means;
• and
• at least one bracket element suitable for engaging the rigid channel element and securing the rigid channel element to a support wall, the at least one bracket element comprising:
• a base member engageable with the support wall;
• and
• a gripping member comprising two member ends engaged with the base member, and a housing region extending about the axis in which the rigid channel element is accommodated;
• wherein the gripping member is shaped so that the housing region has a substantially complementary shape to the square section of the rigid channel element and so that two of the four longitudinal surfaces are positioned facing the support wall, and the other two of the four longitudinal surfaces are positioned facing an environment.