Sound insulated duct: SONODEC – TRD

Fully flexible high-quality factory sound insulated duct, for all low/medium pressure air conditioning and ventilation systems. Standard micro-perforated inner core, separating flame retardant polyester insulation from the airstream. TRD is the perfect combination of very high sound absorption and excellent thermal insulation. The outer jacket/vapor barrier is made of a very tough spirally reinforced multiple layer aluminium laminated construction.


Wire : High tensile steel wire helix

Wire Spacing : 25 mm.

Diameter : 102 mm.-508 mm. (4 ins.-20 ins.)

Temperature Range : From -30° C to 140° C

Air Velocity : Maximum 20 m/sec

Working Pressure : 200 mm. Pa 8 ins. wg

Polyester Insulation : 10 kg/m3 – 1.5 inches

Packing : 10 meters/pack