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PP filter cloth
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PP filter cloth

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PP needle punched felt has some properties as ordinary filter felt have the properties of anti-acid, anti-alkali and lower soften point of PP are better than polyester, and its stability of water solution is excellent, so PP needle punched filter felt is often used in the field is fume temperature under 90℃, the density of acid and alkali is high or the field of filtering solid from liquid that the density of acid and alkali is high. It is applied with press-in style, suction style, bags style, centrifuge style etc liquid filtration equipment.
 
Feathers of Polypropylene needle felt:
Working tempeture is under 90 degree
Can be used under moisture working condition
 
Advantages of Polypropylene needle felt:
Competitive price, normal tempeture , water & oil repellent.
 
Working principle of Polypropylene needle felt:
It will be sewn to PP filter bag for bag house
Polypropylene needle felt 
Construction Needle felt
material Polypropylene needle felt 
Srim support Yes
Felt Area Weight 500g/sqm +/-5%
Thickness 1.8-2.0mm
Mean Air Permeability 11-15 m3/m2/min@12.7mmH2O
Breaking Strength-MD  >960(N/200×50mm)
Breaking Strength-CMD  >1060N /(N/200×50mm)
Breaking Elongation( N/5cm)-MD  <35%
Breaking Elongation( N/5cm)-CMD <55%
Dry Shrinkage MD(260℃) <2.5% 
Dry Shrinkage CMD(260℃) <1.5%  
Operating Temperatures 90 deg C
Recommended Maximum Continuous 90 deg C   
Recommended Maximum Surge 110deg C      
Finish  Singed,calendered,heatset
widely used in flour industry, used in the field is fume temperature under 90℃

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