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B4-72 series explosion-proof centrifugal fan
The B4-72 series explosion-proof centrifugal fan is mainly composed of a mounting bracket, impeller, current collector, and other parts matched with a
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Product Introduction
1、 Type, model and main parametersnumber
Explosion proof type
Explosion proof type: Explosion proof and dust explosion-proof type; Explosion proof mark:Ex d ⅡC T4 Gb
Product model and its meaning
2、 Applicable environment
a.Environmental atmospheric pressure80~110kPa；
b.ambient temperature-20~40℃；
c.The relative humidity of the surrounding air is not greater than95% (at 25 ℃);
d.existhaveFlammable gases of Class IIA-IIC and T1-T120 ℃ groups, formed by vapor and airExplosive gas mixture1District2Dangerous areas and21、22District,Hazardous areas formed by combustible dust and air in the T1~T120 ℃ group；
e.In areas without significant vibration;
f.In an environment without damaging metal insulation with gases and vapors;
3、 Direction of air outlet
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