P84 (PI-polyimide) filter bag is a filter material with the properties of flame resistance ,high temperature resistance. P84 filter bags will keep a good performance when the temperatures up to 240 degree centigrade, instant can up to 260 degree to 300 degree. P84 filter bag is leaf-shaped structure with a larger filter surface, and always embedded in the surface of other needle felt with different material to improve the filter efficiency. For the properties of high Temperature resistant filter material, good chemical resistance, good air permeability, high filtration efficiency, mostly applied in Cement kiln, Asphalt, Waster Incinerator, coal boilers, etc.
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Article Name
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P84 needled felt
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Ingredients
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Fiber
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100%P84
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Scrim
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100%P84
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Weight
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g/2
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500
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Thickness
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mm
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2.2
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Density
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g/m³
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0.23
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Permeability
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L/d2.min
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200
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Tensile breaking
strength(N/5cm)
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Warp
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≥600
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Weft
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≥600
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Elongation @200N/5cm
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Warp
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<5
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Weft
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<5
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Maximum shrink
of 90 mins
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Temperature(°C)
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260
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%
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≤1
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Service Temperature(°C)
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Continuous
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240
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Instant
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260
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Finishing
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Heat setting, Singeing, calendaring
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