Polyester Needle Felt Filter Bag with Laminated ePTFE Membrane
The polyester needle felt filter bag with a laminated ePTFE membrane makes use of first class dacron material and current thermal membrane techniques. It features a stable performance, excellent air permeability and a compact structure.
Technical Data of Our Filter Bag Fiber material: Polyester
Scrim: Polyester standard filament yarn
Membrane material: ePTFE
Physical Properties Weight (g/m2): 500
Thickness (mm): 1.8
Surface finishing: thermoforming, singeing, ePTFE coating
Air Permeability (dm3/dm2/min@20mmH2O): >20
Warp breaking strength (Typical Load @ Peak) (N/5cm) (MD):1300
Weft breaking strength (Typical Load @ Peak) (N/5cm) (XD):1700
Warp elongation (Typical Strain @ 50N) (MD):1%
Weft elongation (Typical Strain @ 50N) (XD): 2%
Warp liner shrinkage@170℃(MD): 3%
Weft liner shrinkage@170℃(XD): 3%
Chemical Properties Acids Resistance:
Alkalis Resistance: Poor
Hydrolysis Resistance: Poor
Oxidize Resistance: Good
Temperature Properties Maximum Operation temperature: 130 ℃
Maximum Surge Temperature: 150 ℃
