Is Pall ring resistant to ozone corrosion?

The ozone corrosion resistance of Pall ring is closely related to its material:

1. **PE/PP material Pall ring ** :

Pall rings made of polyethylene (PE) and polypropylene (PP) are often used in ozone contact reactors, indicating that they have certain ozone corrosion resistance. This type of plastic material can remain stable at conventional ozone concentrations, but long-term high temperature or high ozone concentrations may accelerate aging.

2. ** Metal Pall Ring ** :

- ** Stainless steel (such as 202 material) ** : stable in ozone environment, suitable for medium and low temperature scenarios.

- ** Titanium alloy/Special alloy ** : Enhanced ozone resistance through surface passivation treatment, suitable for extreme conditions.

3. ** PTFE Pall ring ** :

Polytetrafluoroethylene (PTFE) is extremely chemically inert and can withstand most corrosive media, including ozone, and remains stable at high temperatures.

4. ** Ceramic Pall Ring ** :

Ceramic materials have high temperature resistance and excellent chemical stability, suitable for ozone contact towers and other scenarios, but pay attention to mechanical strength limitations.

** Summary ** :

- In conventional applications, PE/PP, stainless steel and tetrafluoride Pall rings are resistant to ozone corrosion;

- In extreme environments (such as high temperature, high concentration of ozone), it is recommended to preferentially choose tetrafluoroethylene or titanium alloy.