Blocking Plugs

Cherne pipe blocking plugs are inflatable or mechanical sealing devices used by water and wastewater utilities to temporarily isolate sections of pipeline during maintenance, repair, or testing operations without requiring system-wide shutdowns. These specialized plugs enable utilities to perform localized work on water mains, sewer lines, and storm drains while maintaining service to other areas of the distribution network, allowing for efficient pipe cleaning, lining installation, pressure testing, and emergency repairs in active utility systems.