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
Without this technology, every minor repair would require a total system shutdown. That means: stopple
: Critical services like gas or water stay online. A (or STOPPLE®, a trademarked term by T
: It creates a "zero energy zone," making it safe for technicians to weld or cut into pipes. A (or STOPPLE®
: If the downstream flow must continue, a bypass line is often installed to route the product around the isolated section.