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Cherne original Big-Mouth plugs are designed for bypass pumping or gravity bypassing operations.
A| Style | Model | Nominal Size | (M)NPT Size (In.) | Range | Max. Back Pressure | Required Inflation Pressure | Deflated Diameter | Deflated Length | Price | |
|---|---|---|---|---|---|---|---|---|---|---|
| A | 269008 | 8" to 10" | 4 | 7.25" To 10.25" | 11 psi/25 ft. | 35 psi | 6.94" | 14.88" | £640.05 | |
| A | 269028 | 12" to 15" | 6 | 10.62" To 15.25" | 11 psi/25 ft. | 30 psi | 10.25" | 17.88" | £1,277.15 |
It features lightweight aluminium construction to provide improved flexibility and durability.
Cherne offers a 2-year warranty on all pneumatic plugs (from the date of manufacture) when kept under controlled conditions and at temperatures between 0 and 125 degrees Fahrenheit.
The inflation pressure should be checked and maintained a minimum of once per 4 hours while in use.