Plastic pall rings are usually made of polymer materials such as polypropylene (PP), polyvinylidene fluoride (PVDF), and polytetrafluoroethylene (PTFE). These materials themselves have excellent chemical resistance and are able to withstand the erosion of most acids, alkalis, salt solutions and organic solvents.

Polypropylene (PP): It has good acid and alkali resistance, but may degrade in strong oxidative acids.

Polyvinylidene fluoride (PVDF): It has excellent chemical resistance and high temperature resistance is better than PP.

Polytetrafluoroethylene (PTFE): known as the "Plastic King", it can resist corrosion of almost all chemicals, and has a wide temperature range of use (-200℃~260℃).

Application scenarios

Plastic pall rings are widely used in chemical, environmental protection, electroplating, pharmaceutical and other fields, and are especially suitable for treating corrosive media, such as:

Pickling waste liquid treatment: In the treatment of steel pickling waste liquid, plastic baer rings can effectively resist the corrosion of residual acid liquid in the waste liquid, while providing good gas-liquid contact and promoting neutralization reaction.

Wastewater treatment: In wastewater treatment, plastic pall rings can withstand the corrosion of chloride ions in wastewater, while providing an adhesion surface for microorganisms and promoting the biodegradation process.