Cherne Single-Size Underground Test-Ball Plugs are designed 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. Cherne Industries is a global leader in pipe plugs, blocking and testing.
Specifications
| Nominal Size: | 12 in. (300 mm) |
| Deflated Diameter: | 10.25 in. (260 mm) |
| Deflated Length: | 13.75 in. (350 mm) |
| Maximum Back Pressure: | 17 PSI / 40 ft. |
| Usage Range: | 10.50 in. – 12.25 in. (267 – 311 mm) |
| Chain Eye Bolts: | 3/8″ |
| Inflation Pressure: | 25 psi (1,7 bar) |
| Inflation Thread: | 1/4 in. (1) |
Safety & Instruction Manual
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