Style 923 is a flat double jacket gasket. Its most typical applications are in Heat Exchangers. ASME B 16.20 shows the gasket dimensions for ANSI B 16.5 flanges. The standard thickness is 1/8 in (3.2 mm). This style is also used in large size reactors in chemical plants. Another important use is for flanges in the large, low pressure ducting in Steel Mill Blast Furnaces. To compensate for distortions and irregularities of these flanges gaskets have the thickness from 5/32 in (4 mm) to 1/4 in (6 mm).
Style 927 is similar to style 923 with addition of flexible graphite facing.
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.
