The National Engineering Research Center for Flame Retardant Materials of Beijing Institute of Technology has recently been approved by the Ministry of Science and Technology for project construction. The center is the first national engineering research center approved in the field of flame retardant. Its establishment is conducive to the integration of China's innovative resources in the field of flame retardant materials, and promote the innovation and development of China's flame retardant material industry.
The Flat Face Flange has a gasket surface in the same plane as the bolting circle face. Applications using flat face flanges are frequently those in which the mating flange or flanged fitting is made from a casting.
Flat face flanges are never to be bolted to a Raised Face Flange. ASME B31.1 says that when connecting flat face cast iron flanges to carbon steel flanges, the raised face on the carbon Steel Flange must be removed, and that a full face gasket is required. This is to keep the thin, bittle cast iron flange from being sprung into the gap caused by the raised face of the carbon steel flange.
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