138 Series Two-Stage Long Kevlar® Reinforced Molded Rubber Plugs Sizes: 1.75" to 6"
For other inflatable plugs click here
Inflation controllers, gauges, hoses, etc. on our accessories page
Kevlar® Reinforced *NR-SBR Rubber Plugs allow blocking and testing wye joints
Multi-Size Long Pneumatic Two-Stage Control Sealing Plugs - 1.75" to 6" Diameter
These Kevlar® reinforced *NR-SBR rubber plugs are used for blocking and testing laterals and Y joints with air or water. Long Plugs are equipped with a 3 ft. inflation hose, chain, and over-size capture-disc for remote placement and retrieval.
* NR = Isoprene rubber, natural. SBR = Styrene-butadiene rubber.
Plugs can be easily inserted at an angle through connections into a main pipe. Sealing of each end is controlled separately by an internal two-stage controller.
Click an Item Number below for the Web Store
| Pipe Diameter | Plug | Required | **Pipeline |
Length | Shpg Wt lbs |
Item Number | Unit Price Each | |||||||||
| Maximum | Minimum | Diameter | Inflation | Max. Head | Valve Type | Cylinder | Total | |||||||||
| in | mm | in | mm | in | mm | psig | ft | m | in | mm | in | mm | ||||
| 3 | 76 | 1.75 | 45 | 1.6 | 41 | 36 | 34 | 10.4 | tire | 19.0 | 483 | 22 | 559 | 2 | 138-003 | US $65.00 |
| 4 | 102 | 2.50 | 64 | 2.4 | 61 | 36 | 34 | 10.4 | tire | 21.0 | 533 | 24 | 610 | 3 | 138-004 | US $79.00 |
| 6 | 152 | 3.38 | 86 | 3.2 | 81 | 36 | 34 | 10.4 | tire | 28.5 | 724 | 31 | 787 | 4 | 138-006 | US $167.00 |
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Two-stage control - Inflate the plug as shown...stage 1 seals one side of the "Y" at about 22 PSI, to prevent outflow .. inflate to 36 PSI and the mainline is also blocked.
**Inflatable Plug Warning: Maximum head pressures that a pipe plug may restrain can only be estimated. Slippage is influenced by many factors including fluid in the pipe, coefficient of pipeline friction, pressure required to inflate the plug, and accuracy of pressure gauges. Generally, a Multi-Flex™ Inflatable Plug inserted fully into pipeline will begin slipping between 50% and 80% of the inflation pressure if it has an inflated pipe contact length of 1 ½ to 2 times the diameter, but even a head of 50% of the inflation pressure may cause slippage with some liquids. The inflation pressure is also subject to temperature change and debris or protrusions in the pipeline that could rupture the plug. The inflation pressure should be monitored and plugs anchored and/or mechanically blocked when slippage may 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 an inflatable plug when its failure would cause injury. Price subject to change without notice Petersen Terms & Conditions Apply |
