124 & 125 Series Multi-Flex™ Heavy Duty Plugs With & Without By-Pass Sizes: 1 1/2" to 96"

For 114 & 115 Series Medium Duty Plugs click hereFor other inflatable plugs click here

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

Compact Diameter. Inflates Up To 8 Times For Easy Insertion

Most sizes afford easy placement by one man. Flexibility allows Multi-Flex™ plugs to navigate through small hot tap or branch pipe into large pipeline; then inflate with air or water.

Typically used for plugging of pipelines especially when there is a small-restricted access. This is the most flexible plug on the market; it has the greatest multi-size range and will conform to almost any pipe configuration. The very small-deflated diameter and flexibility allows insertion and removal through a manhole for plugging otherwise inaccessible pipelines. It is also used as a semi-permanent valve to isolate hazardous waste spills and regulate flow.The by-pass allows flow through by pumping or gravity.

High Strength Flexible Materials
Plugs are made from very high strength flexible woven and non-woven materials and have connections for water or air inflation.

Multi-Size Applications
Petersen® Multi-Flex™ plugs may be used in any pipeline larger than the deflated diameter. Some seepage in smaller size pipelines may require a specific size vapor sleeve especially when pressure testing.

By-Pass
The by-pass design allows flow through during repairs. Flow-thru diameters available up to 3" on standard Multi-Flex™ plugs and larger sizes on custom configurations.

Light Weight
Allows one person insertion for many sizes and applications.

Diver Friendly
Small deflated size allows removal of air for easier insertion under water.

Higher Head Pressure
All inflation pressure is applied to the inside wall of the pipe through the Multi-Flex™ plug. Molded rubber plugs require much of the inflation pressure just to expand the plug.

Flexibility
Deflated Multi-Flex™ plugs easily navigates bends and small openings. A 96" Multi-Flex™ plug may be inserted through a 24" manhole!

Custom Configurations
Custom Flexible and Rigid Plugs may be manufactured for any shape, high temperature, and severe chemical applications. Please contact us to discuss your requirements.

flo thru

 

inflated plug
Inflated Multi-Flex™ Plug

 

 

deflated plug
Deflated Multi-Flex™ Plug

 

 

PET.124 Series Multi-Flex™Heavy Duty Plugs Without By-Pass (Other Sizes and Pressures Available)

Pipe Diameter
Maximum
**Pipeline

Inflation
Port*

Deflated Length Shpg
Wt
lbs
Item
Number
Maximum Minimum
Inflation
Max. Head
in mm in mm psig bar ft m in npt in mm
2 50 1.5 38 60 4.1 69 21.0 1/2 M - 1/4 QC 14 355 4 PET.124-002
3 76 1.5 38 60 4.1 69 21.0 3/4 M - 1/4 QC 16 406 5 PET.124-003
4 102 3.5 89 60 4.1 69 21.0 3/4 M - 1/4 QC 18 457 7 PET.124-004
6 152 5.0 127 60 4.1 69 21.0 1 M - 1/4 QC 23 584 8 PET.124-006
8 203 5.0 127 60 4.1 69 21.0 2 M - 1/4 QC 28 711 12 PET.124-008
10 254 5.0 127 60 4.1 69 21.0 2 M - 1/4 QC 33 838 18 PET.124-010
12 305 5.0 127 60 4.1 69 21.0 2 M - 1/4 QC 46 1168 21 PET.124-012
15 381 5.0 127 38 2.6 43 13.3 2 M - 1/2 QC 54 1372 24 PET.124-015
16 406 5.0 127 32 2.2 37 11.2 2 M - 1/2 QC 56 1422 24 PET.124-016
18 457 5.0 127 32 2.2 37 11.2 2 M - 1/2 QC 61 1549 25 PET.124-018
20 508 6.0 152 27 1.8 31 9.4 2 M - 1/2 QC 66 1676 30 PET.124-020
24 610 6.0 152 25 1.7 28 8.8 3 M - 1/2 QC 76 1930 47 PET.124-024
30 762 7.0 178 20 1.4 23 7.0 3 M - 1/2 QC 91 2311 72 PET.124-030
33 838 7.0 178 20 1.4 23 7.0 3 M - 1/2 QC 99 2515 79 PET.124-033
36 914 8.0 203 18 1.2 20 6.3 3 M - 1/2 QC 106 2692 85 PET.124-036
42 1067 8.0 203 14 1.0 16 4.9 3 M - 1/2 QC 121 3073 136 PET.124-042
48 1219 10.0 254 10 0.7 11 3.5 3 M - 1/2 QC 142 3607 171 PET.124-048
54 1372 10.0 254 8 0.5 9 2.8 3 M - 1/2 QC 157 3988 190 PET.124-054
60 1524 10.0 254 6 0.4 7 2.1 3 M - 1/2 QC 172 4369 208 PET.124-060
66 1676 10.0 254 5.5 0.4 6 1.9 3 M - 1/2 QC 187 4750 213 PET.124-066
72 1829 12.0 305 5 0.3 6 1.8 3 M - 1/2 QC 202 5131 217 PET.124-072
84 2133 12.0 305 3 0.2 3 1.0 3 M - 1/2 QC 232 5892 253 PET.124-084
96 2438 12.0 305 3 0.2 3 1.0 3 M - 1/2 QC 262 6655 289 PET.124-096

 

 

 

125 Series Multi-Flex™Heavy Duty Plugs With By-Pass
Pipe Diameter

By-Pass
Connection

Maximum

**Pipeline

Inflation
Port*

Deflated
Length
Shpg
Wt
lbs
Item
Number
Maximum Minimum
Inflation
Max. Head
in mm in mm in npt psig bar ft m in npt in mm
4 102 3.5 89 2 M 25 1.7 28 8.8 1/4 F - 1/4 QC 18 457 17 PET.125-004
6 152 5 127 2 M 25 1.7 28 8.8 1/4 F - 1/4 QC 23 584 17 PET.125-006
8 203 5 127 2 M 25 1.7 28 8.8 3/8 F - 1/2 QC 28 711 19 PET.125-008
10 254 5 127 2 M 25 1.7 28 8.8 3/8 F - 1/2 QC 33 838 22 PET.125-010
12 305 5 127 3 M 25 1.7 28 8.8 3/8 F - 1/2 QC 46 1168 31 PET.125-012
15 381 5 127 3 M 25 1.7 28 8.8 3/8 F - 1/2 QC 54 1372 37 PET.125-015
16 406 5 127 3 M 25 1.7 28 8.8 3/8 F - 1/2 QC 56 1422 41 PET.125-016
18 457 5 127 3 M 25 1.7 28 8.8 3/8 F - 1/2 QC 61 1549 47 PET.125-018
20 508 6 152 3 M 25 1.7 28 8.8 3/8 F - 1/2 QC 66 1676 49 PET.125-020
24 610 8 203 3 M 25 1.7 28 8.8 3/8 F - 1/2 QC 76 1930 51 PET.125-024
30 762 10 254 3 M 20 1.4 23 7.0 3/8 F - 1/2 QC 91 2311 69 PET.125-030
33 838 10 254 3 M 20 1.4 23 7.0 3/8 F - 1/2 QC 99 2515 72 PET.125-033
36 914 12 305 3 M 18 1.2 20 6.3 3/8 F - 1/2 QC 106 2692 96 PET.125-036
42 1067 12 305 3 M 14 1.0 16 4.9 3/8 F - 1/2 QC 121 3073 210 PET.125-042
48 1219 15 381 3 M 10 0.7 11 3.5 3/8 F - 1/2 QC 142 3607 240 PET.125-048
54 1372 15 381 3 M 8 0.5 9 2.8 3/8 F - 1/2 QC 157 3988 270 PET.125-054
60 1524 18 457 3 M 6 0.4 7 2.1 3/8 F - 1/2 QC 172 4369 300 PET.125-060
66 1676 20 508 3 M 5.5 0.4 6 1.9 3/8 F - 1/2 QC 187 4750 330 PET.125-066
72 1829 24 610 3 M 5 0.3 6 1.8 3/8 F - 1/2 QC 202 5131 360 PET.125-072
96 2438 24 610 3 M 3 0.2 3 1.0 3/8 F - 1/2 QC 262 6655 480 PET.125-096

*QC Quick connection

Custom configurations also available

Item suffix indicates configuration

"I" for Ballistic reinforced nitrile outer ply for hydrocarbons and longer life (Standard)

"V" for Kevlar® reinforced viton outer ply:  Call for pricing
"N" for nylon reinforced neoprene outer ply:  Call for pricing

**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.

 

 

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