143-4 Series Polypropylene End of Pipe Plugs Sizes: 1.5" to 4"
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Mechanical Pipe Plugs Without Integral Restraint Generic Operating Instructions
| These plugs feature a Polypropylene construction with a Natural rubber o-ring. Fits all types of pipe at nominal sizes. Can be used as a permanent or temporary plug. Can be tapped for use with cleanout cover. 
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Click an Item Number below to order
| Pipe Diameter | Maximum Allowable Back Pressures* | Product Length | Shpg
Wt
lbs | Item
Number | Unit
Price
Each |
| Nominal | Maximum | Minimum | Air Pressure | Head Pressure |
| in | mm | in | mm | in | mm | psi | bar | ft | m | in | mm |
| 1.5 | 40 | 1.63 | 42 | 1.48 | 40 | 22 | 1.5 | 50 | 15 | 2.5 | 64 | 1 | 143-4015 | |
| 2 | 50 | 2.09 | 53 | 1.89 | 48 | 22 | 1.5 | 50 | 15 | 3 | 75 | 1 | 143-4020 | |
| 3 | 75 | 3.09 | 79 | 2.89 | 73 | 13 | .9 | 30 | 9 | 3.7 | 94 | 1 | 143-4030 | |
| 4 | 100 | 4.09 | 103 | 3.87 | 98 | 13 | .9 | 30 | 9 | 3.5 | 87 | 1 | 143-4040 | |
Material: Polypropylene construction with Natural rubber o-ring.
*Mechanical Plug Warning: Maximum head pressures that a pipe plug may hold back can only be estimated. Pressures are influenced by many factors including fluid and debris in the pipeline, type and condition of pipe, tightness of plug seal, and temperature. Plugs should always be inserted fully into pipeline and should be mechanically blocked when slippage could cause property damage or injury. NEVER use a test pressure greater than the capacity of the weakest pipe or component in the system. NEVER use a mechanical plug when its failure could cause injury.