These are parts which are formed by the welded connection of curved sheet metal with a radius which corresponds to the main tube for connection and an assembly exit at 30º, 45º or 90º in the diameter required for the shunt.

These units may be fitted once the conduit network has been assembled at any point on a straight section. An opening must first be made in the section which is slightly larger than the shape and section of the shunt unit to be connected. The new part is then welded, riveted or bolted, as required.

For general application in ventilation, air-conditioning and air expulsion units and especially in powder collection and fine particle tube networks.