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Description / Abstract:
These requirements cover the construction and performance of
Grooved and Plain End fittings intended to be joined to pipe or to
another fitting by couplings complying with the requirements of the
Standard for Rubber Gasketed Fittings for Fire-Protection Service,
UL 213.
For the purpose of this Outline of Investigation, Grooved and
Plain End fittings include constructions having one piece cast
devices and fittings fabricated from steel pipe that could be
segmented and welded to form the fitting.