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Needle Punched Felt

Polyester Needle Felt

Detail

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.


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

•Tobacco

•Lead

•Wood

•Flour Mills (Applications under dry conditions up to temperatures of 150°C)


Specification


Heading Product cord

HDPE

Composition

PET/PET scrim

Thickness(mm)

1.8

Air permeability(L/m2/s

200-350

Tensile strengthN/5×20cm)

Warp

≥1100

Weft

≥1300

Tensile elongation(%

Warp

35

Weft

40

Broken strength(N/m2

450

Continuous wokring Tem.(℃)

≤130

Short time working Tem.(℃)

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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