Back-up ring

FF.GI Srl produces back-up / BK / anti-extrusion rings in the most common materials, such as:

- FLON-CHEM 1000 Virgin PTFE;
- FLON-CHEM 1002 PTFE + 25% carbographite;
- PA6;
- PA6 + Mos2 (black);
- LAURAMID®;
- DEVLON® V-API;
- PEEK virgin;
- PEEK PVX (black);
- etc…

We can offer a maximum external diameter of up to 1100mm as a single piece; for larger diameters we can offer welded rings of BK and BKC styles in FLON-CHEM 1000 virgin PTFE.