Operating range
Pressure
[pmax]:
|
300 bar |
| pH: | 0 - 14 |
| Density | 1.20 g/cm³ |
Temperature: t = -200… +550 °C
Practical useful application data:
max. temperature in oxidizing atmosphere: +400 °C
Main application
- Valves
- Fittings
- Gate valves
- Flaps
- Door and lid seals
Suitable for
- Power plant technology
- Petrochemical plants
- Boiler houses
- High pressure- and high temperature applications
For higher pressure and temperature applications use suitable bullrings.
Form of delivery
This packing can be manufactured from 3 to 40 mm square as well as in intermediate, inch sizes and special measurements.
03 - 09 mm on 1 kg spool
10 - 15 mm on 2,5 kg spool
16 - 25 mm on 5 kg spool
Special length, pre-cut or die formed rings on request.
1 kg of packing of the following cross-sections is equivalent to displayed meter lengths:
| Size mm["] | Meter | Size mm["] | Meter |
|---|---|---|---|
| 3 [1/8"] | 81,4 | 13 [1/2"] | 5,5 |
| 4 | 55,3 | 14 [9/16"] | 4,5 |
| 5 [3/16"] | 35,4 | 15 | 3,9 |
| 6 | 24,6 | 16 [5/8"] | 3,5 |
| 6,4 [1/4"] | 21,9 | 18 | 2,7 |
| 8 [5/16"] | 13,8 | 19 [3/4"] | 2,5 |
| 9,5 [3/8“] | 9,8 | 20 | 2,2 |
| 10 | 8,8 | 22 [7/8"] | 1,8 |
| 11 [7/16“] | 7,2 | 25 [1"] | 1,4 |
| 12 | 6,1 |
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A 44 I Grapho Extra
Braid of Flexible Expanded Graphite Tape Reinforced with Inconel Wire
Characteristics
- Universal use valve packing
- Expanded graphite of higher quality
- Coefficient of expansion similar to steel
- For valve applications rings should be approx. 20 - 25 % compressed at installation
- Precompressed rings are recommended