Specifications

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

Specification