Polyphenylensulphide (PPS)

PPS needle felt is used in dry industrial filtration in chemically aggressive environment where the temperature does not exceed 200°C. The maximum working temperature of this material is 190°C. When using this filter media, it is important to know the exact composition of the exhaust gases, especially oxygen O2 as well as nitrogen oxides (NOx, NO2).

It is one of the most popular filter media used in fumes gas filtration (boilers in energy plants) since its thermal resistance corresponds to the most common temperatures in this filtration process. It exhibits excellent resistance to most factors present in the exhaust gases – with one exception – it is sensitive to oxidation. It is a very good filter media for the filtration of exhaust gases when the nitrogen oxide content (in mg/Nm3) and the oxygen content (in %) do not exceed  permissible values.

Application in the following industries:

  • Power plants
  • Heating industry
  • Desulfurization plants
  • Chemically aggressive environments
  • desulphurization plants
  • Biomass combustion plants
Chemical resistance:

  • Acids – excellent
  • Alkalis – excellent
  • Oxidizers – poor
  • Hydrolysis – excellent
  • Solvents – good

Maximum Continuous in Dry Conditions:  190°C 
Maximum Surge in Dry Conditions:  200°C 

Additional treatments for PPS fabrics used:

 Filter bags: Polypropylene

oil and water repellent

 Filter bags: Polypropylene

oil and water repellent PTFE-based

 Filter bags: Polypropylene

antistatic

 Filter bags: Polypropylene

with admixture of PI(polyimide)fibers