Filter press cloth normally include 4 types, polyester(terylene/PET)polypropylene (PP), chinlon (polyamide/nylon) and vinylon. Especiallythe PET and PP material are very popularly used.Plate frame filter press filter cloth is used for solid liquid separation, soit has higher requirement on resistance performance to both acid andalkali, and some time might on the temperature etc…
Polyester Filter Cloth can be divided into PET staple fabrics, PET longthread fabrics and PET monofilament, these products possess theproperties of strong acid- resistance, fair alkali- resistance andoperating temperature is 130 centigrade degree. They can be widelyused in pharmaceutical, non-ferry melting, chemical industrial for theequipment of frame filter presses, centrifuge filters, vacuum filters etc.the filtering precision can reach less than 5microns.
Polypropylene filter cloth possess the properties of acid-resistance.alkali-resistance, small specific gravity,the melting point 142-140centigrade degree,and operating temperature maximum 90 centigradedegree. They are mainly used in precision chemicals, dye chemical,sugar, pharmaceutical, alumina industry for the equipment of framefilter presses,belt filters,blend belt filters,disc filters,drum filters ect. Thefilter precision can reach less than 1 micron.
GOOD MATERIAL
Acid and alkali resistance, not easy to corrode, high temperature resistance, low temperature resistance, Good filterability.
GOOD WEAR RESISTANCE
Carefully selected materials, carefullymade products, not easy to damageand long service life.
WIDE RANGE OF USES
It is widely used in chemical, pharma-ceutical, metallurgy, dyestuff, foodbrewing, ceramics and environmental
protection industries.
Material
|
PET(Polyester)
|
PP
|
PA Monofilament
|
PVA
|
Common Filter Cloth
|
3297、621、120-7、747、758
|
750A、750B、108C、750AB
|
407、663、601
|
295-1、295-104、295-1
|
Acid Resistance
|
Strong
|
Good
|
Worse
|
No Acid Resistance
|
Alakli Resistance
|
Weak Alkali Resistance
|
Strong
|
Good
|
Strong Alkali Resistance
|
Corrosion Resistance
|
Good
|
Bad
|
Bad
|
Good
|
Electrical Conductivity
|
Worst
|
Good
|
Better
|
Just So So
|
Breaking Elongation
|
30%-40%
|
≥ Polyester
|
18%-45%
|
15%-25%
|
Recoverability
|
Very Good
|
A Little Better Than Polyester
|
Worse
|
|
Wear Resisitance
|
Very Good
|
Good
|
Very Good
|
Better
|
Heat Resistance
|
120℃
|
90℃ A Little Shrink
|
130℃ A Little Shrink
|
100℃ Shrink
|
Softness
|
230℃-240℃
|
140℃-150℃
|
180℃
|
200℃
|
Dissolubility
|
255℃-265℃
|
165℃-170℃
|
210℃-215℃
|
220℃
|
Chemical Name
|
Polyethylene Terephthalate
|
Polyethylene
|
Polyamide
|
Polyvinyl Alcohol
|
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