Cherne® I-Series Muni-Ball® Plug 6-12 in w/ 1 in Bypass
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 Muni-Ball 6"-12" with 1" Bypass (part #311-128) is a premium multi-size pneumatic bypass plug for 6" through 12" sewer pipe. The 1" bypass provides controlled flow during testing. Rated for 15 PSI at 45 PSI inflation. At 11.0 lbs and ~25" deflated, it covers the full range of standard municipal sewer mains. Premium natural rubber with aluminum end plates and full body cording.
Key Features
- I-Series premium construction — natural rubber bonded to aluminum end plates
- 1" bypass — controlled flow-through during testing
- 15 PSI rated — for sewer air pressure testing
- Pneumatic inflation — natural rubber seals round and out-of-round pipe
Applications
Municipal sewer air pressure testing, storm drain isolation, large-diameter pipe testing during construction and repair, and compliance testing on trunk mains. Always follow Cherne inflation and back-pressure guidelines.
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 | Bypass Plugs |
|---|---|
| SKU | 311128 |
| Availability | Available to order |
| Weight | 11.0 lbs |
| Bypass Size | 1" |
| Body Material | Natural rubber, aluminum end plates |
| Deflated Length | ~25" |
| Pipe Size Range | 6"-12" |
| Max Back Pressure | 15 PSI |
| Inflation Pressure | 45 PSI |
| Usage Range (pipe Id) | 5.50–12.25" |