High-pressure STOPPLE® fittings are the industry standard for pipeline isolation and hot tapping and are designed for use with STOPPLE plugging machines.

A true innovation in plugging technology, the STOPPLE® Train system allows two plugging heads to be inserted through a single fitting. When the void between the heads is bled down, the seal …

A pipeline stopple or pipe stopper is a specialized device designed to temporarily block or isolate the flow in a section of a pipeline.

This specification covers stopple fittings in sizes 16-inch to 24-inch in ANSI Classes 150, 300 and 600. These fittings are used with T.D. Williamson or equivalent pipeline tapping and plugging …

Combined with a LOCK-O-RING® Plus completion plug, the STOPPLE® Plus fitting reduces installation time, simplifies the setting process, and eliminates potential segment screw leak …

STOPPLE Plus fittings are an alternative to conventional TDW STOPPLE fittings and are designed to ASME B31.3, B31.4 and B31.8 requirements (see chart for MAOP).

Depending upon size, STOPPLE Plus fittings can be delivered in just weeks, if not days. All STOPPLE Plus fittings are equipped with LOCK-O-RING® Plus completion plugs and have …