143-3 Series Steel Wing Nut Plugs Sizes: 1.5" to 6"
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143-3-Series Mechanical Hand Tightening Test Plugs Operation & Maintenance Instructions
Mechanical Pipe Plugs Without Integral Restraint Generic Operating Instructions
These plugs have a SBR/Natural rubber o-ring. These plugs feature galvanized metal plates and bolts with a SBR/Natural rubber o-ring. Cost effective way for plugging open ended pipes. Can be used as pipe dust cover. |  | |
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| 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 | 1.65 | 42 | 1.44 | 37 | 2 | .14 | 5 | 1.4 | 2.56 | 65 | 1 | 143-3015 | |
| 2 | 50 | 2.25 | 57 | 1.96 | 50 | 2 | .14 | 5 | 1.4 | 2.62 | 67 | 1 | 143-3020 | |
| 3 | 75 | 3.25 | 82 | 2.86 | 73 | 2 | .14 | 5 | 1.4 | 2.64 | 67 | 1 | 143-3030 | |
| 4 | 100 | 4.5 | 114 | 3.78 | 96 | 2 | .14 | 5 | 1.4 | 3.25 | 82 | 1 | 143-3040 | |
| 5 | 125 | 5.3 | 135 | 4.62 | 117 | 1 | .07 | 2 | .7 | 3.55 | 90 | 2 | 143-3050 | |
| 6 | 150 | 6.4 | 162 | 5.62 | 143 | 1 | .07 | 2 | .7 | 3.19 | 81 | 2 | 143-3060 | |
143-3xxx-C Stainless Steel Wing Nut Plugs These plugs feature stainless steel bolt and plate with a chemical resistant nitrile rubber. Cost effective chemical resistant plug. Can be used as pipe dust cover. | | |
| 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 | 1.75 | 44 | 1.44 | 37 | 2 | .14 | 5 | 1.4 | 2.56 | 65 | 1 | 143-3015-C | |
| 2 | 50 | 2.25 | 57 | 1.96 | 50 | 2 | .14 | 5 | 1.4 | 2.62 | 67 | 1 | 143-3020-C | |
| 3 | 75 | 3.25 | 82 | 2.86 | 73 | 2 | .14 | 5 | 1.4 | 2.64 | 67 | 1 | 143-3030-C | |
| 4 | 100 | 4.5 | 114 | 3.78 | 96 | 2 | .14 | 5 | 1.4 | 3.25 | 82 | 1 | 143-3040-C | |
| 5 | 125 | 5.3 | 135 | 4.62 | 117 | 1 | .07 | 2 | .7 | 3.55 | 90 | 2 | 143-3050-C | |
| 6 | 150 | 6.3 | 160 | 5.62 | 143 | 1 | .07 | 2 | .7 | 3.19 | 81 | 2 | 143-3060-C | |
*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.