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  3. 128 Series Multi-Flex™ Hot Tap Insertion Plugs

128 Series Multi-Flex™ Hot Tap Insertion Plugs Sizes: 2" to 96"

Compact Diameter Allows Insertion Through a Small Hot Tap in a Pressurized Pipeline

 

    Petersen Inflatable Multi-Flex Pipe Plug Insertion System installs a plug into a pressurized pipeline without removing pressure. This allows for maintenance of pipelines without reducing pressure or emptying the pipeline. There are two Petersen Hot Tap Insertion Systems.

    The 128 Series Multi-Flex Plug requires a smaller hot tap size and is installed down stream of the hot tap. This allows the plug launching system to also bypass flow upstream of the plug. The 129 Series Plug can be built for much higher pressures than the 128 series but requires a somewhat larger hot tap and inflates immediately below the hot tap. When the project is complete a Completion Valve may be installed and the tapping valve removed.

     

     

    Plug pressurized pipelines with Multi-Flex™ Plugs

    Other sizes and custom configurations also available

    • Easy hot tap (live) insertion
    • Stops flow for repairs
    • Small deflated diameter
    • Flexibility allows navigation around corners
    • Tough materials for long life

    High Pressure Hot Tap Insertion Plugs

    Hot Tapping Assembly
    Click here for detailed drawing
    hot tap insertion
    Hot Tap Plugs Without By-Pass
    Plug Diameter Maximum **Pipeline

    Inflation
    Port

    in npt

    		Deflated Length Shpg
    Wt
    lbs    		 Item
    Number
    Maximum Hot Tap Inflation Max. Head
    in mm in mm psig bar ft m in mm
    2 51 2.00 51 90 6.2 103 31.3 3/8 M 14 355 2 PET.128-002
    3 76 2.00 51 90 6.2 103 31.3 3/8 M 16 406 2 PET.128-003
    4 102 3.00 76 90 6.2 103 31.3 3/4 M 18 406 2 PET.128-004
    5 127 3.00 76 90 6.2 103 31.3 3/4 M 21 533 3 PET.128-005
    6 152 3.25 82 90 6.2 103 31.3 1 M 23 584 3 PET.128-006
    8 203 4.00 102 90 6.2 103 31.3 1 1/4 M 28 711 4 PET.128-008
    10 254 6.00 152 90 6.2 103 31.3 2 M 33 838 9 PET.128-010
    12 305 6.00 152 90 6.2 103 31.3 2 M 46 1168 10 PET.128-012
    15 381 6.00 152 57 3.9 65 19.8 2 M 54 1372 25 PET.128-015
    16 406 6.00 152 48 3.3 55 16.7 2 M 56 1422 28 PET.128-016
    18 457 6.00 152 48 3.3 55 16.7 2 M 61 1549 33 PET.128-018
    20 508 6.00 152 40 2.7 46 14.0 2 M 66 1676 35 PET.128-020
    24 610 6.00 152 37 2.5 42 12.8 2 M 76 1930 37 PET.128-024
    30 762 7.00 178 30 2.0 34 10.3 2 M 91 2311 53 PET.128-030
    33 838 7.00 178 30 2.0 34 10.3 2 M 99 2515 56 PET.128-033
    36 914 8.00 203 27 1.8 31 9.4 2 M 106 2692 70 PET.128-036
    42 1067 8.00 203 21 1.4 24 7.3 3 M 121 3073 83 PET.128-042
    48 1219 10.00 254 15 1.0 17 5.1 3 M 142 3607 109 PET.128-048
    54 1372 10.00 254 12 0.8 13 3.9 3 M 157 3988 144 PET.128-054
    60 1524 10.00 254 9 0.6 10 3.0 3 M 172 4369 148 PET.128-060
    66 1676 10.00 254 8 0.5 9 2.8 3 M 187 4750 151 PET.128-066
    72 1829 12.00 305 7 0.4 8 2.4 3 M 202 5131 154 PET.128-072
    96 2438 12.00 305 4 0.2 4 1.2 3 M 262 6655 169 PET.128-096

     

     

    Hot Tap Plugs With By-Pass
    Plug Diameter
    Maximum
    **Pipeline

    By-Pass
    Connection

    in npt

    Inflation
    Port

    in npt

    		Deflated Length Shpg.
    Wt.
    lbs.    		 Item
    Number
    Maximum Hot Tap
    Inflation
    Max. Head
    in. mm in. mm psig bar ft m in mm
    2 51 2 51 90 6.2 103 31.3 1/8 M 1/8 M 14 355 3 PET.128-002-8
    4 102 4 102 90 6.2 103 31.3 1/2 M 1/8 M 18 406 3 PET.128-004-8
    6 152 4 102 90 6.2 103 31.3 1/2 M 1/8 M 23 584 4 PET.128-006-8

    Larger sizes available upon request

    **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.

    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.

    Hot Tap Plugging Slide Show Click for Hot Tap Plug Insertion Assembly
    Hot Tap Plug Insertion Video Other hot tap insertion plugs

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

     

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Trademarks are the properties of their respective owner(s).

February 2022, BW56 updated October 2009

The descriptions, illustrations, specifications, dimensions, and part numbers are subject to change without notice.


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