Expanded PTFE Products
NA 620 Valve Stem Packing - Expanded PTFE Cord
All purpose, self forming PTFE valve stem packing
- A non-staining and non-contaminating packing for use in valve stems
- A low friction packing with a high degree of pliability enabling it to conform to valve stuffing box flaws and irregularities
- Excellent chemical resistance even against strong acids and caustics
Easy to install, requiring minimum inventory
| Service Media and Conditions | Compatible in strong acid and alkali media, affected only by elemental fluorine and molten alkali metals |
| Temperature | -232°C to 315°C |
| pH | 0 to 14 |