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

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 …

The meaning of STOPPLE is something that closes an aperture : stopper, plug.

A procedure used in the repair of a pipeline to isolate a section of line in the absence of a shutoff valve.

International Flow has over 37+ years experience in the pipeline line stop and stopple business. Call us for a line stop and stopple quote today.

STOPPLE® Fittings are full-branch split tees designed for use with TDW plugging machines. The design has undergone extensive strain-gauge and pulsation testing.