Rectangular ducts

Transformation pieces

A transformation piece goes from a cross-section A × B to a smaller cross-section C × D, with a 50 mm straight section at both ends. The position of the small opening sets the type.

Key data

Dimensions: Made to measure: you choose the cross-section A × B and the length.
Material: Galvanised steel (Z275), stainless steel 304 and stainless steel 316.
Connection: Frame connection: each piece has a 20 or 30 mm frame at its ends.
Airtightness: Airtightness class B, C or D to EN 1507.

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Sizes

All dimensions in mm. Every piece is made to measure: send us the dimensions from the drawing, with the code if there is one.

Transformation pieces with one straight side

TR | TR1 | TR2

TR, TR1 and TR2 differ in the position of the small opening (see drawing).

Dimension drawing Transformation pieces with one straight side

Dimension	Meaning
A × B	Large end
C × D	Small end
D, F	Position of the small opening
L	Length
50	Straight section at both ends (mm)
k1, k2, …	Frame (connection)

Transformation pieces tapered on all sides

TRE | TRE1 | TRE2

TRE, TRE1 and TRE2 differ in the position of the small opening (see drawing).

Dimension drawing Transformation pieces tapered on all sides

Dimension	Meaning
A × B	Large end
C × D	Small end
D, E, F	Position of the small opening
L	Length
50	Straight section at both ends (mm)
k1, k2, …	Frame (connection)