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PTFE filter cloth
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PTFE filter cloth

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PTFE needle felt also called Teflon, with a good performance in the temperature of 260 centigrade, the instant temperature can up to 280 centigrade. PTFE is a special material with a good alkali and acid resistance ,anti-hydrolysis ,stable physical dimension, mainly used in coal burning boiler, waste incineration ,carbon black producing,Tio2 producing for fume treatment or dust collection, as well as some high temperature or some corrosive liquid filtration.
 
Note: 
1. special specification can be customized.
2. maximum width:2.2meters.
3. both filter cloth rolls and filter bags are available from Shanghai sffiltech.
 
Features of PTFE needle felt:
Working temperature is under 260 degree
Can be used under moisture, high harsh chemical working condition
 
Advantages of PTFE needle felt:
a) High temperature resistance
b) Excellent acidity resistance
c) Excellent alkalinity resistance,
d) High filtration fineness
 
Working principle of PTFE needle felt:
It will be sewn to PTFE filter bag for bag house
PTFE needle felt 
Construction Needle felt
material PTFE needle felt 
Srim support Yes
Felt Area Weight 750g/sqm +/-5%
Thickness 1.2-1.4mm
Mean Air Permeability 8-16 m3/m2/min@12.7mmH2O
Breaking Strength-MD(warp)   800(N/200×50mm)
Breaking Strength-CMD(weft)   900N/(N/200×50mm)
Breaking Elongation( N/5cm)-MD(warp)   20%
Breaking Elongation( N/5cm)-CMD(weft) 25%
Dry Shrinkage MD(240℃warp) <2.5%
Dry Shrinkage CMD(240℃weft) <1.5%
Operating Temperatures 220-250 deg C
Recommended Maximum Continuous 250 deg C
Recommended Maximum Surge 270 deg C
Finish  Singed,calendered,heatset,PTFE membrane
Widely used in coal burning boiler,waste incineration,carbon black producing,Tio2 producing for fume treatment or dust collection, as well as some high temperature or some corrosive liquid filtration

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