For circular and oval airducts.

• Easy and quick installation.
• The thin and often corrugated wall of the duct is sandwiched between two fixed covers.
• Two star knobs facilitate easy door operation.
• Available in many sizes and different versions. Type RDD HT is suitable for temperature up to +400˚C.
• Possibility of manufacturing from aluminium, galvanized or stainless steel sheet, depending on the required dimensions.

STANDARD DIMENSIONS

• 180 x 80    for airducts Ø 68 ÷ 70 mm
• 200 x 100  for airducts Ø 130 ÷ 360 mm
• 300 x 200  for airducts Ø 260 ÷ 530 mm
• 400 x 300  for airducts Ø 370 ÷ 950 mm
• 500 x 400  for airducts Ø 520 ÷ 1.800 mm