Article
Background And Testing Of The MEGAFLANGE® Flange Adapter
February 13, 2006
•Article: Background And Testing Of The MEGAFLANGE® Flange Adapter
EBAA Iron developed the Series 2100 MEGAFLANGE® flange adapter to make the installation of flanged piping and fitting more field adaptable. The Series 2100 utilizes wedges rather than set screws to grip the pipe. The MEGAFLANGE flanging system provides a fully restrained joint with deflections capabilities. It is available in sizes 3 inch through 36 inch. The Series 2100 has been subjected to several kinds of hydrostatic pressure tests on a variety of piping material. This report details the 3 through 12 inch sizes.
Although the installation procedure for the flanged joint is very simple and straight forward, there are several problems associated with the flanged joint that make it difficult to install in the field. For example, the flanged joint requires an excessive amount of torque on the bolts to achieve a good seal. The pipe layout must be precisely planned to avoid misalignment errors due to deviations in appurtenances or pipe fabrication.
Products such as the flange adapter and the flanged coupling adapter were introduced to make flanged joints easier to assemble in the field. While these products have been helpful, they are limited. Typical flange adapters use a standard mechanical joint gasket for both the pipe and the flange seal and are still prone to leaks. The flanged coupling adapter separates the pipe seal from the flange seal but most are not restrained. In most cases, unrestrained flange adapters and flange coupling adapters must be restrained. In some cases, set screws are incorporated to restrain these devices, but set screw restraints are ineffective when compared to the "pull out strength" of the standard flanged joint. However, the MEGAFLANGE adapter from EBAA Iron provides a field fabricated, fully restrained flanging system for use on plain end ductile iron, steel, and PVC pipe. The MEGAFLANGE flange adapter not only provides a way of connecting plain end pipe to a flanged fitting, it also delivers flexibility, up to 5° in three through eight inch sizes and up to 3° in the ten and twelve inch sizes, both during and after assembly.
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•Article: Background And Testing Of The MEGAFLANGE® Flange Adapter
SOURCE: EBAA Iron Sales, Inc.
