This packing is braided from graphite-filled PTFE yarn and uses a silicon oil lubricant.
The product is designed for use in rotary pump and valve applications.
|Speed||20 m/s (Rotary pump)|
2 m/s (Valve)
|Temperature||–100 … +280°C|
|pH Value||0 … 14|
|Pressure||2.5 MPa (Rotary pump)|
25 MPa (Valve)
|Media||Alkalis, solvents, bitumen, almost all acids*.|
|Variations||BPG 6329 – braided from 100 % GFO© yarn|
*Exceptions: highly concentrated nitric acid, oleum
Very low thermal expansion
Low friction characteristics
Ability to run at high speeds
Long service life
Low leakage with a minimum of gland pressure