A (or STOPPLE®, a trademarked term by T.D. Williamson ) is a specialized device used to temporarily block or isolate a section of a pipeline while it remains under pressure. Think of it like a temporary valve you can install anywhere on a pipe without needing an existing shut-off point. The Stopple Process: How It Works
: Critical services like gas or water stay online. stopple
: It creates a "zero energy zone," making it safe for technicians to weld or cut into pipes. A (or STOPPLE®, a trademarked term by T
Keeping the Flow: The Essential Guide to Pipeline Stopples In the world of pipeline maintenance, the biggest challenge isn't the repair itself—it's doing it without shutting down the entire system. Imagine trying to fix a leak in a main water line or an oil pipeline that services thousands of people. You can't just "turn it off." This is where —often called line stopping—becomes an absolute lifesaver. What exactly is a Stopple? The Stopple Process: How It Works : Critical
: First, a specialized fitting (like a split tee) is welded to the pipe. A hot tapping machine then drills a hole through the pipe wall without any product leaking out.
: A plugging machine is mounted onto the fitting. It pushes a "plugging head" into the pipe to create a seal and stop the flow.