BPG 7290
Properties
This packing is based on braided end rings of expanded pure graphite reinforced with carbon yarn corners. It has high density expanded graphite disks with permeation barrier and uniquely impregnated high density expanded graphite adapter rings and low density expanded graphite sealing ring with special friction reducing coating.
Applications
The product is designed for use in valve applications.
Operation Parameters
| Speed | 2 m/s |
| Temperature | –200 … +400°C (most media) –200°C … +550°C (steam) |
| pH Value | 0 … 14 |
| Pressure | 30 MPa |
Product Specifications
| Media | Most chemicals (solvents, hydrocarbons, acids, lyes), steam, alcohols, oils etc. |
| Certificates / Approvals | TA-Luft, ISO 15848, API 622, API 589 (Fire Safe) |
Benefits
Up to 80 % lower friction compared to standard sealing systems made of expanded graphite
Very low spindle torques at high temperature
Low compression required due to optimized force deflection