Petersen® Inflatable Line Stop™ (ILS) Systems
Time and cost can be reduced
considerably and safety improved by using Petersen® Inflatable Line Stop
(ILS) systems block pressurized pipelines.
Call Petersen or
email to discuss the benefits of our hot tap
plug systems.
- Safety enhanced and Environmental Risk reduced with smaller hot tap
hole to help maintain pipeline integrity
- Conforms to out of round pipe configurations for better seal than
mechanical stops
- Time and Cost reduced with smaller lighter weight equipment allows and
faster deployment
- High flexibility, small deflated diameter allows installation through
much smaller hot tap than much heavier costlier mechanical stops.
- Heavyweight Ballistic Nylon reinforced Polyurethane construction for
long term reuse Materials such as Kevlar and Viton available for most
pressure, chemical, and temperature requirements
- A minimal inflation pressure with water, air or other inert gas will
expand the plug thus most of the pressure is applied to pipe ID for
sealing.
- IFS Insertion Systems may be used with multiple plug and pipe
sizes.
Use the Inflatable
Line Stop Configurator to estimate dimensions and cost
The 128-Series Hot Tap Pipe Plug Insertion
System uses the
128-Series Multi-Flex® Plugs
and requires and directs the Plug down stream from the tap. The hot tap
may also be used as a by-pass or for purging up stream of the Plug. The
tap hole is smaller than for the 129-Series system, the head pressures
that may be stopped somewhat lower, and the launch cylinder a little
longer.
General 128-Series system instructions are available to
be adapted for your hot tapping and plugging project.
The 129-Series Hot Tap Pipe Plug Insertion System uses
the
129-Series
Multi-Flex® Plug and can be customized for
higher pressures than the 128-Series system. This Plug inserts a little
easier since the Plug is inflated just below the hot tap. The 129-Series
system requires a larger tap hole, but can be inserted with a shorter
launch cylinder. The 129-Series Plug may also be installed through a
riser with an end inflation port when the plug is installed down stream
of the riser.
General 129-Series system instructions are available to
be adapted for your project.
Compact Plug Diameter Allows
Insertion Through Small Hot (Live) Tap
Launch cylinder with inflation ram and packing seal (gland) 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 a 10" tap with the pipeline pressurized.
Rotating Elbow
The Rotating Elbow provides a flexible connection between the inflation ram
and plug.
128-Series Insertion Systems
Click an Item Number below to order
The above lengths are calculated with estimated valve heights and may be
adjusted for a specific job requirement.
150 lb. Flanges are standard but the system may be customized for a
specific job requirement.
The above pricing does not include the Rotating Elbow.
129-Series Insertion Systems
Click an Item Number below to order
The above lengths are calculated with estimated valve heights and may be
adjusted for a specific job requirement.
150 lb. Flanges are standard but the system may be customized for a
specific job requirement.
The above pricing does not include the Rotating Elbow.
Launch Cylinders
Click an Item Number below to order
Inflation Ram Sections
Click an Item Number below to order
System Includes: Launch cylinder, inflation packing seal (gland),
inflation ram, centering guide, and drain/fill valve.
Inflation Ram End Adapters for PeteStopTM
Click an Item Number below to order
Rotating Elbows
Click an Item Number below to order
**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 Ω to 2 times the diameter, but even a head pressure 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 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 an inflatable plug when its failure
could cause injury.
