Product
Information
Type VG4 is a 100% pure Graphite packing which
is capable of near universal application. VG4 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
Type VG4 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 Type VG4 will result in maintenance
savings many times in excess of the actual packing cost.
Applications
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 50 ppm. |
