P84 (polyimide) needle felt 
P84 polyimide needle felt 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