P84 (polyimide) needle felt 

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 strength. 

• 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.

Applications

• Incinerator plants 

• Cement Kiln gas 

• Low acid coal fired boilers 

• Asphalt/hot mix plants flue gas 

• Minerals processing 

• Soil remediation facilities