T-piece Angled side branch with a pressure drop that is inversely proportional to the angle of the branch; it is not just angled in the direction of the main air flow, but also practically matches it.
Double fork Two symmetrical, angled side branches with a moderate pressure drop and two symmetrical ductwork exits – ideal for connections and branches in reduced spaces.
Conical fork Angled conical branch with very small pressure drop and just one ductwork exit, which is angled in the direction of the main air flow.
Double conical fork Two angled conical branches in the direction of the main flow, minimising the pressure drop and facilitating suction.
Y-piece Symmetrical branches with a minimal pressure drop, they serve as connection points for changing the direction of the ductwork layout.
Assembly exit Formed by welding a branch with the required diameter to a piece of curved sheet metal. Once the ductwork system has been assembled, they can be installed on any straight section of ducting.
Double T-piece Two right-angle branches with a high pressure drop and possible turbulence. Used for forming connections and branches in a minimum of space.
