PTFE vs Stainless Steel Demister Pad
A PTFE demister pad is made of PTFE mesh. It is used for long-term service at 200–260 °C, stays flexible down to −100 °C and resists almost all chemicals except molten alkali metals. A stainless steel pad is the general-purpose choice for normal conditions. Choose PTFE when the gas is very hot, very cold or corrosive.
Side by Side
| PTFE demister pad | Stainless steel demister pad | |
|---|---|---|
| Material | PTFE (a plastic that resists almost all acids, alkalis and solvents). | Knitted stainless steel wire. |
| Temperature | Long-term use at 200–260 °C. Stays flexible down to −100 °C. | Normal process temperatures. Tell us your temperature and we confirm the grade. |
| Chemical resistance | Resists almost all chemicals except molten alkali metals. | Depends on the steel grade. Tell us the gas and liquid and we recommend a grade. |
| Droplets removed | Same principle as any wire mesh pad: droplets hit the mesh, merge and drain off. | Down to 5 µm at above 99% efficiency (standard type). |
| Typical use | Hot, very cold or corrosive gas. | General gas-liquid separation: knock-out drums, scrubbers, evaporators, tops of columns. |
| Made to order | Yes, to your drawing, in sections that fit through the manway. | Yes, to your drawing, in sections that fit through the manway. |
Choose a PTFE Pad When
- Your service is very hot (long-term 200–260 °C).
- Your service is very cold (flexible down to −100 °C).
- Your gas or liquid is corrosive.
- You need resistance to almost all chemicals.
Choose a Stainless Steel Pad When
- Your conditions are normal and not highly corrosive.
- You need a standard replacement pad made to your old drawing.
- You want to choose the steel grade to suit the liquid.
Not Sure Which?
Send us the gas, the liquid, the temperature and the vessel size, and we recommend the material. A replacement pad can be made to your old drawing in either material.
Related Terms
Demister pad · Mist eliminator · Manway
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