1. Sound attenuation performance;

鍍鋅薄鋼板風管：無消聲性能，自身震動會產生聲音，必須加裝消聲器。

Galvanized sheet steel air duct: no noise attenuation performance, self vibration will produce sound, so muffler must be installed.

無機玻璃鋼風管：無消聲性能，隔聲性能優于鍍鋅薄鋼板風管，必須加裝消聲器。

Inorganic glass fiber reinforced plastic duct: no noise attenuation performance, sound insulation performance is better than galvanized steel sheet duct, muffler must be installed.

復合玻纖板風管：其管壁是一種多孔性吸聲材料，可省去專用消聲器。

Composite fiberglass duct: its wall is a kind of porous sound-absorbing material, which can save the special muffler.

法瑞管：其管壁為柔性纖維織物，本身就是聲音的不良導體和吸收體，自身不會產生聲音，還可以一定程度上吸收設備噪聲，隨著管道的延長，效果更為明顯，可省去專用消聲器。

Farui pipe: the wall of the pipe is made of flexible fiber fabric, which is the poor conductor and absorber of sound. It will not produce sound, and can also absorb equipment noise to a certain extent. With the extension of the pipe, the effect is more obvious, and the special muffler can be omitted.

2、保溫性能：

2. Thermal insulation performance:

鍍鋅薄鋼板風管：導熱系數很大(為60.4 W/m?K) ，無保溫性能，必須另外加包保溫層及保護層。

Galvanized sheet steel air duct: the thermal conductivity is very high (60.4 w / M? K), and it has no thermal insulation performance, so it must be additionally wrapped with thermal insulation layer and protective layer.

無機玻璃鋼風管：導熱系數大(為0.5W/m?K) ，無保溫性能。

Inorganic FRP duct: high thermal conductivity (0.5W / M? K), no thermal insulation performance.

復合玻纖板風管：導熱系數小(平均溫度24℃時小于1 W/m?K) ，有一定保溫性能，不加裝保溫。

Composite fiberglass duct: low thermal conductivity (less than 1 W / M? K at average temperature of 24 ℃), with certain thermal insulation performance, without thermal insulation.

濟南風管加工

Jinan air duct processing

法瑞管：濟南風管加工時，保溫的目的在于防止能量流失及風管表面凝露。法瑞管反其道而行之，利用纖維織物本身的滲透性，在風管表面形成冷氣層，使得管壁內外無溫差，因而不會凝露，達到了普通風管采用大量保溫材料所達到的同樣的效果。

Farui pipe: when Jinan air duct is processed, the purpose of heat preservation is to prevent energy loss and condensation on the surface of air duct. Farui pipe works in the opposite way, using the permeability of the fabric itself to form a cold air layer on the surface of the air duct, so that there is no temperature difference between the inside and outside of the pipe wall, so it will not condense, achieving the same effect as ordinary air duct using a large number of thermal insulation materials.

3、防火性能

3. Fire performance

鍍鋅薄鋼板風管：不燃，但其真正的防火性能視保溫層而定。

Galvanized sheet steel duct: non combustible, but its real fire performance depends on the insulation layer.

無機玻璃鋼風管：同鍍鋅薄鋼板風管。

Inorganic FRP duct: the same as galvanized steel sheet duct.

復合玻纖板風管：外層為鋁箔，以不燃性玻璃纖維棉板為基材，防火性能好。   法瑞管：布風管的防火特性取決纖維材質，法瑞管采用的是阻燃滌綸纖維，達到GB8624-2006 B級防火標準。（防火等級達到A級標準的材料，為玻璃纖維材料，不防凝露，抗老化能力差，壽命短，在空調場所不建議使用）

Composite fiberglass duct: the outer layer is aluminum foil, and the non combustible fiberglass cotton board is used as the base material, which has good fire resistance. Farui pipe: the fire resistance of air distribution pipe depends on the fiber material. Farui pipe is made of flame retardant polyester fiber, which meets the class B fire protection standard of GB8624-2006. (materials with fire grade up to grade A are fiberglass materials, no condensation resistance, poor aging resistance and short life, and are not recommended for use in air-conditioned areas).

4、防潮性能

4. Moisture resistance

鍍鋅薄鋼板風管：易受潮腐蝕生銹。

Galvanized sheet steel duct: easy to be corroded and rusted by moisture.

無機玻璃鋼風管：受原料配比的制約，其防潮性能的穩定性較差。

Inorganic glass fiber reinforced plastic air duct: restricted by the proportion of raw materials, the stability of its moisture-proof performance is poor.

復合玻纖板風管：無易腐材料和部件，但因其為多孔材料，在長期潮濕環境下不建議使用。

Composite fiberglass duct: no perishable materials and components, but because it is porous material, it is not recommended to use in long-term humid environment.

法瑞管：材料均為德國進口滌綸材料，防潮性能，在游泳館、食品廠、紡織廠等高濕環境下可以長期使用。

Farui tube: the material is polyester imported from Germany, with excellent moisture resistance. It can be used for a long time in natatorium, food factory, textile factory and other high humidity environment.

5、強度

5. Intensity

鍍鋅薄鋼板風管：強度較高，抗靜壓能力強。

Strong static pressure resistance, galvanized steel sheet, high strength.

無機玻璃鋼風管：強度較高，抗沖擊能力脆弱。

Inorganic glass fiber reinforced plastic duct: high strength, weak impact resistance.

復合玻纖板風管：能滿足一般通風空調的承壓要求，高可承受風壓1500Pa。

Composite fiberglass board air duct: it can meet the pressure requirements of general ventilation and air conditioning, and can withstand the wind pressure of 1500pa.

法瑞管：柔性材料，耐壓大于2000Pa。

Farui tube: flexible material, pressure greater than 2000Pa.