PTFE Membrane Diffusers

For municipal wastewater plants, dairies, carbonated beverage factories, and in pulp and paper mills, SSI's PTFE membranes improve fouling resistance to such an extent that cleaning frequency is reduced by a factor of 5 to 10 as compared to standard EPDM membranes.

PTFE has replaced EPDM, silicone and polyurethane tube membranes, and EPDM disc membranes from a number of different manufacturer.

The thin film PTFE surface layer acts as a barrier layer to protect the EPDM or other substrate material from damage due to exposure to solvents, fats and greases which have caused traditional EPDM membranes to creep, lose weight and chemically oxidize.

By reducing the amount of foulants, SSI diffusers with PTFE layered membranes are much more likely than conventional diffusers to retain their initial efficiency and headloss. \

PTFE diffusers will cause a paradigm shift in the industry. No longer will comparisons of diffusers be made primarily based on initial clean water efficiency, but now towards predictive short and medium term in-process trials in which the fouling resistance of a membrane is considered.       

Benefits of PTFE Membranes:

    * Competitive SOTE
    * Resistance to fouling and calcium scaling
    * Extended life
    * Outstanding chemical resistance
    * Outstanding resistance to fats, oils and greases
    * Outstanding resistance to hydrocarbons, fuels, and solvents

SSI's patent pending PTFE disc membrane replaces EPDM models to improve fouling resistance.