Rectangular Aluminum Semi Rigid Duct
Rectangular Aluminum Semi Rigid Duct is a rare product in the HVAC industry. It was developed and designed by us specifically for the Indian Rail Coaches on request of Indian Railways.
The Rectangular Semi Rigid Duct is made of a special Aluminum Alloy that prevents corrosion and fatigue. The special patented machine developed by BWC produces a continuous lock seam that allows the duct to be pulled open, bent, compressed and re-bent without developing fatigues and leakages.
Compliance
Rectangular Aluminum Semi Rigid Duct manufactured by BWC is specially designed and manufactured in accordance to the following standards and regulations -:
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BS 476 Part 5, Part 6 & Part 7
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ASTM E-84
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NFPA 90 A & 90 B
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RoHS (Restriction of Harmful Substances)
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MDTS-130 Rev_01 of Indian Railways
Specifications
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Temperature Range: -73°C to 224°C
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Maximum Velocity: 5000 FPM
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Permeance: Zero
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Fire Rating: Class ‘O’ as per UL-723
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Flame Speed: Non – Flammable
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Smoke Developed: Zero
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Pressure: 2000 Pa
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Environmental Standard: RoHS (Restriction of Hazardous Substances)
Advantages
• Complete air-tight duct systems.
• Simple on site assembly.
• No fabrication of parts required on the job.
• Easy availability of accessories to permit speedy installation.
• Clean, efficient and fast installation.
• Increased airflow.
• Lifetime durability.
• Premium quality at an affordable cost.