Five types of IT3 pipe end connections are available: the SK, SL, SF, S-SK, and S-CF. The S-SK, unique to other connectors, is available for joining steel carrier pipes in double-wall steel systems and is used primarily for offshore piping systems. The S-CF, developed for wastewater and storm sewer applications, is a coupler for gravity flow systems.
SK - series quick-coupling - features a single butt weld and male nipple. The male nipple consists of a fiberglass collar supported with a steel collar. This interference fitted connection joins random lengths of pipe. Its main property is efficiency and speed.
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