TRD • Flexible insulated silencers

The TRD 25 is a thermally and acoustically insulated duct, consisting of inner duct made from ALUFLEX as base, covered with thermal insulation of glass wool 25 mm thick. The external surface of the flexible duct is covered with jacket made of polyester laminated aluminium foil. Both ends are taped to provide easy connection.

• The TRD 25 flexible ducts are used in ventilation, air conditioning, and air handling systems where high mechanical strength, temperature, fire-resistance, and thermal and sound attenuating qualities are required

• Micro-perforated inner duct consisting of 1 layer of 7 μ aluminium , and 2 layers of 12 μ polyester each (one aliminized), total thickness without glue: 31 μ
• Metalized polyester outer jacket 3-layer laminate, consisting of 1 layer of 7 μ aluminium , and 2 layers of 12 μ polyester each, total thickness without glue: 31 μ
• Fibreglass insulation:
• Density: 16 kg/m³
• Thickness: 25 mm
• Thermal resistance: 0,65 K.m²/W
• Thermal conductivity: 0,039 W/m K
• Polyester barrier of 12µ between insulation and inner duct
• Wire spacing: a steel spiral spring with a pitch of 25mm (Ø82-90mm), 36mm (Ø102-406mm)
• Colour: Aluminium
• Both ends are taped to provide easy connection

• Temperature range: From - 30°C till + 140°C
• Air velocity (max): 20 m/s
• Operating pressure: -188 up to 1500 Pa
• Center bend radius: 1 x Diameter minimum
• Fire class: Class B - s1, d0 according to EN 13501-1
• As the product does not contain PVC, no toxic vapours are released should fire occur
• Produced according EN 13180: Dia Class B, Thightness Class C

• Good resistance to many organic solvents
• Moderate resistance to acid and base

• The TRD 25 is suitable for applications where static discharges have to be avoided

• The TRD 25 ducts are not suitable for transporting air with a high concentration of acid and base
• The TRD 25 can not be used for discharging combustion gases from open fire places and oil-fired boilers

• Clamps, type MCA