Haohai duct is a new material duct, its advantages such as energy saving, environmental protection, no pollution, light & easy installation, fireproof, soundproof, nice appearance and long service life can not only meet the demands of duct material, but also avoid the disadvantages of traditional materials, The advantages of Haohai duct in performance, cost and manufacture make it true to design and construct a modern air conditioning system.
• Light, safe, decrease the load of the building.
• Easy to install, shorten the construction period.
• Protect environment, sandwich structure with antioxidant surfaces.
• High performance in heat insulating, can be served in both high and low temperature environment.
• Fireproof, meet the National standard, makes building safe.
• Soundproof, makes a quieter environment.
• No need to leave space for insulation material installing, so that the story height can be reduced.
• Long service life up to 20 years, very low cost in wastage and maintenance.
• Nice appearance.
| Smoke temperature | 125°C |
| Flame height | 15mm |
| Thickness of panel | 20mm |
| Density | 40~69kg/m3 |
| Compressive strength,10% | 0.2MPa |
| Dimension stability | 0.5% |
| Thermal conductivity | 0.021w/m.k |
| Working temperature | -50 to +80°C |
| Item | Haohai duct | Zincification duct | Fiberglass duct | XPS |
Thermal conductivity | excellent | poor | poor | general |
| Weight(kg/m²) | 1.3-1.4 | 8.32 | 8.8 | 1.1~1.3 |
| Flame Retardancy | Phenolic A class PU B1 class | A class | A class | ------ |
| Service life | 15~20 years | 6~7 years | 10~15 years | 15~20 years |
| Contaminant | Never | Yes | Yes | A little |
Installation speed | Fast | Slow | Slow | Fast |
Installation effect | Easy to install, nice appearance, high efficiency | Complex install, low efficiency | Complex install, low efficiency | Easy to install, nice appearance, high efficiency |
| Maintenance | Low | High | High | Low |
