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As expected,SHANGHAI HAOHAI CHEMICAL CO.,LTD unveils a new product relying on our advanced technologies and industrious employees. It is Pre-insulated Duct Sheet Aluminium Foil Laminated Sandwich Panel Fireproof Air Ducts and can be legally exported to foreign countries. It caters to the foreign markets. Since our inception, SHANGHAI HAOHAI CHEMICAL CO.,LTD have been striving forward with the aim of being a leading company in the globe. We will focus more on improving our R&D capabilities and upgrading technologies in order to develop more creative products, therefore leading the industry trends and keeping us competitive in the market.

Warranty:LifetimeAfter-sale Service:Online technical support, Return and Replacement
Project Solution Capability:total solution for projectsApplication:Mall
Design Style:ModernPlace of Origin:China
Brand Name:HaohaiCertification:CE


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.

Pre-insulated Duct Sheet Aluminium Foil Laminated Sandwich Panel Fireproof Air Ducts

Haohai duct system including                                                                                                   

Haohai duct panels

Accessories for Haohai duct

Training and service for duct installation

Datasheet of tech & safety for duct installation

Undertake projects of duct installation

Product Data Sheet                                                                                                                       

Smoke temperature
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

Comparison between Haohai duct and other ducts                                                  

Haohai duct
Zincification duct
Fiberglass duct
poor general general
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
Yes Yes
A little






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

Haohai duct satisfies the following standards:                                                                   

•  GB50243-2002

     Acceptance standard for construction quality of HVAC works.

•  GB50045-95

     Criterion of fireproof design of civil tall buildings.


Inspected by the National Construction Material Test center,

Haohai duct passed the formaldehyde volatilization test, could be applied indoor directly.

Approved by the National Quality Test Center and China Construction Material Association,

    Haohai duct is a stable qualify, safe and environment protective product.

Inspected by Shanghai quality monitor inspection spot, if s innocuous and a safe product.

There is no Freon in Haohai duct, and won, t destroy aerosphere.

As a result of low water absorbability of Haohai duct, it won5 t bring germ in the duct.

Installation Accessories                                                                                                              

Various flanges,H bayonet, Hooked hanger bracket, Aluminum shaped disk, Covering angle, G.I.

Square, etc.

Pre-insulated Duct Sheet Aluminium Foil Laminated Sandwich Panel Fireproof Air Ducts


Pre-insulated Duct Sheet Aluminium Foil Laminated Sandwich Panel Fireproof Air Ducts

Basic Information
  • Year Established
  • Business Type
  • Country / Region
  • Main Industry
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  • Enterprise Legal Person
  • Total Employees
  • Annual Output Value
  • Export Market
  • Cooperated Customers
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Take advantage of our unrivaled knowledge and experience, we offer you the best customization service.


In PU foam (OCF) industry, Haohai is one of the leading PU foam manufacturers in China.

They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.
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