Cherne ® I-Series Test-Ball ® Blocking Plug 8-12 in, 15 PSI
Estimated delivery Jul 28 – Jul 30· freight quoted separately
- Volume / custom config? Call (866) 514-3684 or request a quote
Description
The Cherne I-Series Test-Ball 8"-12" (part #210-128) is a premium multi-size pneumatic blocking plug for 8" through 12" sewer pipe. Rated for 15 PSI at 45 PSI inflation. Premium natural rubber bonded to aluminum end plates. A focused size range for crews primarily working on 8" to 12" municipal mains. 3/4" eyebolts for poly-lift line attachment.
Key Features
- I-Series premium construction — natural rubber bonded to aluminum end plates with full body cording
- Multi-size coverage — one plug covers multiple pipe diameters
- 15 PSI / 35 ft. head — rated for sewer air pressure testing
- Full blockage — complete shutoff, no bypass
- 3/4" eyebolts + field-replaceable pressure relief valve (larger sizes)
Applications
Municipal sewer air pressure testing, storm drain isolation, large-diameter pipe blocking during construction and repair, and compliance testing on trunk mains. Deploy through manholes using eyebolts and poly-lift line. Always follow Cherne inflation and back-pressure guidelines — never exceed rated pressures.
Questions on sizing or bulk pricing? Call (866) 514-3684 or email us — we ship within the USA and welcome tax-exempt purchasing for qualified accounts.
Specifications
| Type | Blocking Plugs |
|---|---|
| SKU | 210128 |
| Availability | Available to order |
| Bypass | None (full blockage) |
| Body Material | Premium natural rubber, aluminum end plates |
| Pipe Size Range | 8"-12" |
| Max Back Pressure | 15 PSI / 35 ft. |
| Inflation Pressure | 45 PSI |
| Operating Temperature | 0°F to 125°F |