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Graphite Gaskets | Graphite Seals | Graphite O Rings

J A Harrison is a leading supplier of graphite gaskets, graphite sheet, seals and die formed rings 

Graphite was one of the forerunners in the battle to replace Asbestos for safety reasons. Known as the “DRY LUBRICANT”  the solid material is the only non metal conductor of electricity. A natural product mined mainly in China and Mongolia it is a soft product mined in various sizes of flakes depending on application. It acts as a lubricant and can operate in temperatures up 750 degrees celsius. Our comprehensive range of graphite products consists of pure unreinforced sheet and tape, self adhesive tape and then laminated in either a foil or tanged form with a core of various grades of stainless steel including 316 and 304. Also Nickle Duplex and Super duplex.

Graphite gaskets are well suited to processes that demand high‐performance at increased temperatures and pressures. In addition, there are several properties which make graphite suitable for high‐performance gaskets.

  • Graphite can handle both high and low temperatures, it's very durable in processes that operate across a wide temperature range
  • Graphite is corrosion resistant at most temperature and pressures, and is not affected by pH changes
  • Graphite has exceptional mechanical strength when used in gaskets and excellent resiliency
  • Graphite is highly compressible
  • Graphite has low creep under pressure or temperature
  • Graphite has unlimited storage life

Graphite gaskets have become popular in many industries because of the advantages they have over other materials that were previously used in their place. As a result today graphite gaskets have almost replaced other alternatives such as iron, asbestos and metal. 

Applications:

  • High & low temperatures
  • Aggressive media
  • Low bolt loads
  • Hot oil equipment
  • Nuclear
  • Heat exchangers  

Graphite gaskets are used in processes that include corrosive media like ammonia, hot water, high pressure vapours, ultra‐cool liquids and hydrocarbons. As a result this makes them the top choice for heat exchangers, cooling towers and high pressure pipes. J A Harrison provides gaskets fully customized to your dimensional and mechanical requirements. Please contact our technical team to discuss your requirements.