BPG 7300
Properties
The sealing set contains five packing rings made from laminated carbon non-woven and expanded graphite foil and is additionally coated with a special high temperature impregnation.
Applications
The product is designed for use in valve applications.
Operation Parameters
| Speed | 2 m/s |
| Temperature | –200°C … +400°C (most media) –200°C … +550°C (steam) |
| pH Value | 0 … 14 |
| Pressure | 25 MPa |
Product Specifications
| Media | Most chemicals (solvents, hydrocarbons, acids*, lyes), steam, alcohols, oils etc. |
| Certificates / Approvals | TA-Luft, ISO 15848, API 589 (Fire Safe) |
*Exceptions: strongly oxidising acids like sulphuric acid and nitric acid in high concentrations
Benefits
- Very low leakage rates compared to standard expanded graphite rings
- Minimized adhesion and sticking of graphite particles on the spindle due to the carbon non-woven layer on the inside of the ring
- Lower friction forces in comparison to expanded graphite rings