一、BF-1flameless Glass fiber reinforced and magnesium oxy-chloride gelatinous materials composite duct

BF-1flameless Glass fiber reinforced and magnesium oxy-chloride gelatinous materials composite duct briefing

performance index
　　Density: 1.9～2.10kg/cm3, artificial accelerate aging bend strength ≥60Mpa (about tem years)
　　Water absorption: ≤4％
　　Heat conductance index≤0.5W/mk Antistatic electricity test R<1．7x107
　　Oxy index(01)100 Burn performance do not crack, distort and burned in fire for thirty minutes
　　Bend strength ≥80Mpa Acid bearing: passed
　　Strain strength ≥32Mpa Alkali bearing: passed
　　Strike strength≥30KJ/M3
Flameless performance
　 　hrough the GB5465 experiment of country fire fighting system and fire bearing apparatus quality test centre, it is identified to be flameless material
Environment during
　　after the warm and heat changed aging experiment, it is identified possessing fine environment durable performance.

三、using value of BF-1flameless Glass fiber reinforced and magnesium oxy-chloride gelatinous materials composite duct (compared with iron plate and fiber glass)

　　1. Compared with fiber glass: besides flamelessness, glass fiber reinforced and magnesium oxy-chloride gelatinous materials composite duct also have the advantages of organic fiber glass, and saving manufacture cost about 65% than organic fiber glass, so it is a new generation industry material instead of organic fiber glass.
　　2. Compared with iron plate mental material: glass fiber reinforced and magnesium oxy-chloride gelatinous materials composite duct is anti-corrosion and anti-rust, but rust will be heavily generated at the duct inside wall of iron plate. What is more, iron plate have fine heat conductance performance, perfect heat separating disposal should be adopted to deal with it. From manufacture, glass fiber reinforced and magnesium oxy-chloride gelatinous materials composite duct is much more easily to be produced, different shape could be manufactured according customers’ requirement, which solve the complex manufacturing craft to made iron plate by themselves.
　　从价格上成型的玻镁复合风管成品价格和成型的铁皮管道价格上下无几，可以说是非金属代替金属的理想产品。

1、structure type：
We also have developed BF-II heat preservation ventilation duct, with heat conductance 20% less than common one, low cost, fine effect and aspect, which also contains the performance of BF-I.

type	main feature	used situation
PY型	section is round	covertly set in the ceiling with relative large space
PJ型	section is rectangle	set in or out ceiling of relative small space

2、设计厚度

五、installation method and notice

Installation methods：
　①according design requirement, install it along the design drawing
　②Asbestos yarn should be used to connect ducts, or after installation, seal it with same material and connected with screw.
　③Every 1500mm should be fastened for vertical installation; every 2500mm should set a hanger for horizontal installation.
　④Hangers should be set at many neck-changed ducts.
　⑤Hanger should be set at the end part of duct, and be fastened.
Notice：
　①Striking should be avoided during installation, especially for flange.
　②Duct and hanger could not used as supporter to fasten or lift other weight things, as well as scaffold.