Carbon Graphite Fibre – Type: CH KU4

Carsten Holms CH KU4 is a 100% pure Graphite packing which is capable of near universal application. CH KU4 is inter-braided from pure Graphite yarn impregnated fibre by fibre with pure Graphite powder. The Graphite powder increases the natural sealing effect of the Graphite yarns and acts as a surface lubricant to produce a virtually non-scoring packing.
Graphite fibre is superior to any other yarn in the degree to which it combines outstanding packing properties, namely; excellent thermal conduction, smooth running, near universal chemical resistance and extreme temperature capability. The use of CH KU4 pure Graphite fibre packing provides the opportunity to extend the use of the packed gland into extreme areas of speed, temperature and chemical resistance. In more normal applications, the quality of CH KU4 will result in maintenance savings many times in excess of the actual packing cost.

PROFILE

PRODUCT ADVANTAGES
• Easy installation and removal
• Near universal chemical resistance
• Withstands high pressure
• Excellent temperature capability
• Excellent thermal conductivity
• Smooth running
 

APPLICATION
For pumps and valves in extreme conditions or where the value of the best quality packing can be realised. Universal chemical resistance (sole exceptions are fuming nitric acid, oleum, aqua regia and fluorine). Suitable and certified for use in nuclear power plants. Percentage of soluble chloride is less than 50ppm.
Temperature up to 427°C in Oxidising Environments. Up to 2760°C in Inert Environments.
Never use the product when maximum temperature and pressure are combined.