P84 (polyimide) needle felt,P84 (polyimide) Needle Punched Felt,P84 (polyimide) Needled Felt

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P84 (polyimide) needle felt P84® Felt filter bags provide a unique and cost effective solution for many tough industrial baghouse applications. Versatile and efficient,P84® usage ranges from minerals processing, lowacid coal fired boilers, asphalt/hot mix plants, to soil remediation facilities.P84® fibers are needled into filtration quality felts to be sewn into filter bags suitable for use in pulse jet style baghouses. The unique tri-lobal fiber structure of P84® provides customers with high efficiency filtration, low pressure drop, and reduced cleaning energy.P84 polyimide needlefelts are excellent high temperature filter media in terms of performance, generally surpassing the other standard media with the exception of PTFE. Features Excellent steady under high temperature and resistance to acid P84 can operate continuously, under practical and low acid working conditions, at temperatures up to 500°F(260 °C). High filtration efficiency, high tensile strengh The complex cross sectional shapes create 30-90% more collection surface area when compared to round or oval shaped fibers. Low back washing pressure, maximun flexibility The unique tri-lobal fiber structure of P84 provides customers with high efficiency filtration, low pressure drop, and reduced cleaning energy. Excellent dust cake release P84 has irregular, tri-lobal fibers that provide better collection efficiencies and enhanced dust cake release properties. Disadvantages - Fair resistance to alkali Applications - Incinerator plants, - Cement Kiln gas - Lowacid coal fired boilers - Asphalt/hot mix plants flue gas - Minerals processing - Soil remediation facilities Specification Compositions P84/P84 scrim P84/galss scrim Weight (g/m2) 450 500 550 800 850 900 Thickness (mm) 2.1 2.3 2.5 2.5 2.8 3.0 Permeability (m3/m2/min) 19 15 12 16 13 10 Tensile strength(N/5 20cm) Warp 650 700 800 1800 1800 1800 Weft 1150 1200 1300 1800 1800 1800 Tensile Elongation (％) Warp <35 <35 <35 <10 <10 <10 Weft <55 <55 <55 <10 <10 <10 Broken strength (Mpa/min) 2.55 2.50 2.40 3.20 3.10 2.95 Working Temperature(℃) ≤ 260 ≤ 260 Short time Working temperature(℃) 280 280 Anti-acid Excellent Excellent Anti-alkali Fair Fair Anti-abrasion Excellent Excellent The stability of water solution Medial Medial Finishing treatment High temperature hot pressing，Singeing High temperature hot pressing，Singeing, membrane.

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China Zhejiang Heading Filter Material Co.,Ltd

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