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Polyester needle punched filter felt
Polyester needle felt is the most versatile, most cost effective and most widely used filter medium for dust collection. It is strong, abrasion resistant, can work up to 150°C and has good resistance to common acids, solvents and oxidising agents.

Feature:
1.By using high strength scrim, the strengh of the felt is increased by a wide range.
2. Selecting 1.2D¡¢2D and 2.5D excellent polyester fibers to produce.so this products possess high porosity,good permeability and high effective dustcollecting.
3.By using high lever fibers increase the ability of anti-acid,anti-alkali and the stability of water solution.
4.Smooth surface treatment,high filtration efficience.
5.low operation resistance,saving energy.

Disadvantages
Polyester"s only real weakness is a tendency to hydrolyse at elevated temperature which means that moisture can break down the fibres and cause them to revert to their basic constituents. This results in powdering of the fibres and a serious loss of strength.

Application

Because of its favourable price/quality ratio, polyester is the most common fibre used in filter media.

Mining
Cement Industry
Iron and Steel Industry
Aluminum and Non Ferrous Industry
Ceramic Industry
Quarrying
Plastics
Milk Powder
Flour Mills (Applications under dry conditions up to temperatures of 150°C)
omposition
PET/PET scrim
Thickness£¨mm£©
1.8
Air permeability£¨L/m2/s£©
200-350
Tensile strength
£¨N/5×20cm£©
Warp
¡Ý1100
Weft
¡Ý1300
Tensile elongation£¨£¥£©
Warp
£¼35
Weft
£¼40
Broken strength£¨N/m2£©
450
Continuous wokring Tem£¨¡æ£©
¡Ü130
Short time working Tem£¨¡æ£©
150
Anti-acid
Fair
Anti-alkali
Fair
Anti-abrasion
Excellent
The stability of water solution
Fair
Finishing treatment
Singeing,calendaring,heatting£¨Mirror treatment£©
 
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