Flexible Graphite - produced from natural graphite - has a Carbon content from 90% to 99.9%.
Graphite flakes are treated with acid, neutralized and dried. The flakes are then subjected to high temperature, and the water, after vaporizing, “blow- up” the flakes, which increase up to 200 times or more of their original volume. Those expanded flakes are calendared without any additive or binder, producing sheets of high flexibility and excellent thermal resistance.
Gaskets made from flexible graphite show low creep values, defined as continuous plastic deformation when subjected to pressure. Therefore, there is only a small loss of bolt load, which reduces the need for retightening of the bolts.
A PTFE manufacturing facility was experiencing leaks on an FEP Extruder that was originally designed to utilize a metal reinforced compressed asbestos gasket.
ETP Copper Process Case History
A metal manufacturer was looking for a replacement for asbestos compression packing.
CMS Plant Case History
A chemical plant was having issues with skived virgin PTFE gaskets failing in a heat exchanger application.
2774 Harsh Chemicals Case History
A customer was using a PTFE packing from another manufacture in an auger conveyor system.
Teadit 2773 for Wastewater Treatment
A wastewater facility was utilizing a graphite packing in their pumps and experiencing numerous issues (shaft scoring, short run duration, constant retightening, etc.).
Pulp & Paper
A pulp and paper mill was having issues with microcellular PTFE in the liquor lines of their digester process.
Bromine Manufacturing Case History
A chemical processing facility was utilizing PTFE envelope style gaskets on a circulation heater.
Teadit 946 Camprofile for Water Treatment
An environmental engineering and design company was working with a major pipe, valve, and fitting supplier to place butterfly valves into a specialized water decontamination unit.