TRD • Flexible insulated silencers

The TRD 25 is a thermally and acoustically insulated duct type SONOFLEX 25

• 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 of the ALUFLEX type, 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 2 layers of polyester of 12 μ each and 1 aluminium of 7µ. Total thickness without glue: 45 μ
• Fibreglass insulation:
• Density: 16 kg/m³
• Thickness: 25 mm
• Thermal resistance: 0,65 K.m²/W
• Thermal conductivity: 0,039 W/m-K
• Colour: pink
• Polyester barrier of 12µ between insulation and inner duct
• Wire spacing: a steel spiral spring of different thicknesses and a pitch of 25mm (Ø82-90mm), 36mm (Ø102-406mm)
• Colour: Aluminium
• Both ends reinforced with alutape connection for easy mounting

• 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 resistance: 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, Sag<4°, Crushing strength 13-35kg compressed; 2.5kg uncompressed.

• 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