Graphite rings

DENSIQ produces and supplies die-moulded graphite rings (Grafex ring) to all types of industry and for applications such as valves, resealing hatches etc. A Grafex ring consists of pure natural graphite that is expanded at high temperature and then die-moulded to the correct density.

The properties are excellent regarding the sealing properties at high pressure, high temperature and function in most media. The range includes products in various grades:

Grafex IQ

Expanded Graphite 98% purity, Industrial Quality (IQ).

Grafex NQ

Expanded Graphite 99.85% purity, Nuclear Quality (NQ).

Grafex HT

Expanded Graphite 98% purity, High Temp Quality (HT).

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