PPS needle felt supplier
Description
PPS needle felt application performance is remarkable in the following situations, is one of the main varieties of high temperature resistance filtration materials.
PPS fiber has the strength of the integrity of the intact and chemical resistance, can be in harsh environments to maintain good filtration performance, and to achieve the desired service life. In the filter coal-fired boilers, waste incinerators, power plants, such as the dust treatment of dust cleaning dust pulse, PPS needle felt is the ideal filter material.
Features of PPS needle felt:
1, Working temperature of 190 ° C, short-term working temperature of 210 ° C, the melting point of 285 ° C, limiting oxygen index of 34 to 35.
2, Oxygen content of 15% or less of the occasion can be applied.
3. Sulfur in fuels or sulfur oxides in flue gas, has been proved to be anti-acid corrosion, chemical resistance of the fiber.
4, flue gas containing moisture occasions.
5. The PPS filter bag has excellent performance record at the temperature of 190 ~ 210 ° C under the conditions of industrial and mining conditions, air cloth ratio of up to 5: 1 to do online cleaning and air cloth ratio of 6: 1 for off-line cleaning.
Standard specification for PPS needle felt:
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Fibre Composition
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PPS staple fiber
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|
Scrim Composition
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PTFE
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|
Weight
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550
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g/m2
|
|
Thickness
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1.8
|
mm
|
|
Mean Air Permeability
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8-110
|
m3/m2/[email protected]
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|
Breaking Strength-CD ( warp )
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≥700
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N/5x20cm
|
|
Breaking Strength-MD (weft)
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≥1000
|
N/5x20cm
|
|
Breaking Elongation-CD
|
<25
|
%
|
|
Breaking EIongation-MD
|
<45
|
%
|
|
Dry Shrinkage-CD
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< 1
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%
|
|
Dry Shrinkage-MD
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< 1
|
%
|
|
Recommended Continous Operating Temperature
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160
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°C
|
|
Recommended Short-term Operating Temperature
|
190
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°C
|
|
Finishing
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Singeing, calendaring, heat setting, PTFE impregnation treatment
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