Chemstar NQ 6226/NQ
Features
We can also provide quality monitoring including time certification according to agreed specifications upon request. Chemstar NQ 6226/NQ is a diagonally braided 100% PTFE silk packing, impregnated with a pure PTFE dispersion. According to the Siemens specification for nuclear power stations, the low-chloride PTFE packing is of nuclear grade and suitable as a reserve component in nuclear valves.
Advantages
- High structural strength
- High cross-sectional stability
- Suitable for nuclear applications
Operating range
Valves
Pressure: p = 500 bar
Sliding velocity: vg = 2 m/s
Temperature
- Continuous operation:
t = -200 °C … +290 °C - transient peak temperature:
t = +300 °C
Chemical resistance:
pH = 0 ... 14
Universal chemical resistance Not suitable for use in abrasive media or in hot water and hot steam applications.
Recommended applications
Industries
- Nuclear power stations
Components
- Valves
Variants
6226 base material, without special cleaning
Notes
For gaps >0.03 x packing cross-section between the gland and shaft or shaft and stuffing box bore, we recommend the use of a header ring with Thermoflon TR 6232/TR.
Forms of supply
- Sold by length, blank cuts, precompressed rings with straight or slanted cut
- Box contents
up to 6,35 mm: 1 kg
7 - 10 mm: 2 kg
11 - 13 mm: 3 kg
14 - 24 mm: 5 kg
from 25 mm: 10 kg
