Low Pressure Nylon Expansion Plugs Sizes 0.5″ to 6
These superior, versatile, expandable plugs are used to accommodate a wide variety of industrial applications where an airtight seal is required.
COB Advantages:
- Quality, Lightweight, Durable Nylon 20% lighter than metal.
- Tough/shatter-proof and easily cleaned and maintained, corrosion resistant.
- Plaster or cement do not adhere to the plug.
- Friction-reducing acetyl copolymer thrust washer inserted between plate and wing nut provides for easy expansion.
- Natural Rubber provides “superior” seal.
- Larger sizes incorporate strengthening ribs to provide rigidity in use.
- Silicon, nitrile, and viton seals available.
| Solid Stem / SS-0.50″ to 1.50″ |
| Item Number | Nominal Size | Size Unexpanded | Size Expanded | Unit Weight (LBS.) |
| SS0.50 | 0.50″ | 0.490″ | 0.600″ | 1/4 |
| SS0.75 | 0.75″ | 0.740″ | 0.900″ | 1/4 |
| SS1.00 | 1.00″ | 0.975″ | 1.200″ | 1/4 |
| SS1.25 | 1.25″ | 1.225″ | 1.450″ | 1/4 |
| SS1.50 | 1.50″ | 1.480″ | 1.750″ | 1/4 |
| ***SS series now available with vented stem |
| HOLLOW STEM / VS-0.50″ TO 6″ |
| Item Number | Nominal Size | Size Unexpanded | Size Expanded | Unit Weight (LBS.) |
| VS0.50 | 0.50″ | 0.490″ | 0.600″ | 1/4 |
| VS0.75 | 0.75″ | 0.740″ | 0.900″ | 1/4 |
| VS1.00 | 1.00″ | 0.975″ | 1.200″ | 1/4 |
| VS1.25 | 1.25″ | 1.225″ | 1.450″ | 1/4 |
| VS1.50 | 1.50″ | 1.420″ | 1.930″ | 1/4 |
| VS2.00 | 2.00″ | 1.930″ | 2.360″ | 1/4 |
| VS2.50 | 2.50″ | 2.400″ | 2.760″ | 1/4 |
| VS3.00 | 3.00″ | 2.870″ | 3.310″ | 1/3 |
| VS4.00 | 4.00″ | 3.540″ | 4.250″ | 1/2 |
| VS5.00 | 5.00″ | 4.720″ | 5.370″ | 1 |
| VS6.00 | 6.00″ | 5.500″ | 6.290″ | 1 |