Pure expanded mineral graphite
Reinforcement in nickel-alloy and impregnation with special graphite-based compounds.
The graphite seal ring gasket for valves GR8622 is characterized by the use of pure expanded mineral graphite, which ensures high sealing performance. Thanks to its Low Emission API std 622 3rd Edition certification, this packing is particularly suitable for applications where low gas emissions into the environment are required. The GR8622 is able to maintain its elastic properties and sealing performance over time, without the need for re-tightening. The yarn used offers very low weight loss during high-temperature operation and a low coefficient of friction, making it suitable for applications that require high slipperiness. In addition, the GR8622 gasket is able to withstand high pressures and extreme temperatures, ensuring reliable and long-lasting sealing.
GR8622 is a specially designed packing for industrial valves used in low emissions service, also suitable for those with H.P./H.T. service. Made of pure expanded mineral graphite, this graphite packing ring for valve sealing is certified Low Emission API std 622 3rd Edition and maintains its elastic properties and sealing performance over time without the need for re-tightening. Additionally, the yarn provides a very low weight loss at high temperatures and offers a low coefficient of friction, ensuring high performance and reliability in industrial use.
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Never use the product to the maximum temperature and pressure associated. Consult the manufacturer for further information
The peak temperature can be sustained for short exposures
With weakly oxidizing agents and hot air the temperature must be limited to 450 ° C
With steam and non-oxidizing fluids the temperature must be limited to 650 ° C
Graphite and carbon cannot be used with oxidizing fluids
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The weight per meter and the packaging's weight may have a tolerance of +/- 10%. Other sizes and packaging are available on demand.