Cherne
Cherne 270270 8 In Mechanical Pipe Plug Trap
Mechanical 8 in pipe plug seals 7.7 to 8.03 in diameters for end-of-pipe sewer testing up to 17 PSI or 40 ft head
- TypeDrain Components
- MaterialHAWA
- Mechanical design seals pipes without inflation tools
- Fits 7.7 to 8.03 inch diameters for 8 inch nominal pipes
- Withstands 17 PSI air pressure during sewer testing
- Holds 40 feet of head for long-term applications
- Deflates to 3.75 by 7.75 inches for compact storage
Mechanical pipe plug for 8 in sewer testing
The Cherne 270270 is a mechanical pipe plug built for end-of-pipe sewer testing and long-term installations. It fits nominal 8 in pipe with an inside diameter between 7.7 in and 8.03 in. The body combines ABS plastic and rubber for a positive seal in cast iron, clay or plastic pipe.
Deflated profile for access and sealing
When deflated the plug measures 3.75 in long by 7.75 in diameter, allowing it to pass through clean-out openings before expanding to grip the pipe wall. It holds up to 17 psi of back air pressure or 40 ft of head pressure, freeing the installer from external bracing or temporary bulkheads during pressure tests.
No bundled accessories or software included
The product ships as the plug assembly only; no inflation hose, pressure gauge or control fittings are supplied. Installers must provide their own mechanical expansion tools and test equipment to complete the setup.
Highlights
- Mechanical design seals pipes without inflation tools
- Fits 7.7 to 8.03 inch diameters for 8 inch nominal pipes
- Withstands 17 PSI air pressure during sewer testing
- Holds 40 feet of head for long-term applications
- Deflates to 3.75 by 7.75 inches for compact storage
Specifications
| Type | Drain Components |
|---|---|
| Material | HAWA |
| Brand | Cherne Industries |
| Model | 270270 |
Questions about this item
At what back-pressure limit will the 8 in mechanical plug start to leak during a long sewer test?
The plug is rated for a maximum back air pressure of 17 PSI and a maximum back pressure of 40 ft of head.
How much heat or noise does the plug generate when left in place all day?
The plug has no moving parts and produces no noise or heat during operation.
What existing pipe size must I have for the 270270 to seal correctly?
The plug fits pipes with an internal diameter between 7.7 in and 8.03 in.
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