Cherne 8"- 12" Multi-Size Underground Test Ball Plug (11 psi)

Cherne Multi-Size Underground Test-Ball Plugs offer an economical pneumatic plug option for blocking flow, allowing for maintenance in sanitary and storm sewer systems. These plugs may also be used as a back plug for sewer air tests. Features: One plug fits multiple pipe diameters Made of natural rubber for excellent expansion and memory Seals both round and out-of-round pipe Removable inflation valve can be replaced if damaged or replaced with quick disconnect fitting Use to block flow or as a back plug for sewer air testing For blocking the flow of water or sewer lines Effective on all types of pipe Uses rupture disc technology which prevents over-inflation of the pneumatic plug Utilizes a standard tire air fitting for easy connections Removable chains are standard on sizes through 6" Larger sizes include 1 or 2 eyebolts for attaching a lifting line Bendable to 90 degrees Specifications: Sewer Testing/Long-Term Testing Inflation Pressure: 20 psi Fits Pipe Size: 7"-12-1/4" Maximum Back Pressure: 11 psi/25...