Multi-Flex™ Hot Tap Plugging Launch Cylinder System

Compact Plug Diameter Allows Insertion Through Small Hot (Live) Tap

Launch cylinder with inflation ram and packing seal allows insertion of Petersen® Plugs into pressurized pipeline.

Typically used for plugging of pipelines through a hot tap in the side of the pipe or through a valve on the end of a pipe. A variety of Petersen® Multi-Flex™ plugs are available for most chemical, pressure, and temperature requirements. A 36" plug as an example may be installed through an 8" Tap with the pipeline pressurized.

**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.

Inflation controllers, gauges, hoses, etc. on our accessories page

Price subject to change without notice
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Products covered by one or more of the following patents: 4,565,222; 5,353,842; 5,901,752; 6,446,669; 6,568,429; 6,899,138 and other applications pending.

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