Pipe Plug, Inflatable High Flow Stop, 129-8 Series

The high flow inflatable line stop plug from the 129-8 Series is designed to quickly and reliably block flow in pressurized pipelines without requiring a complete system shutdown. These high flow pipe plugs are perfect for maintenance, repair, or emergency situations as they are designed to handle flow rates of up to 10 feet per second in tough environments. 

Petersen's flow stop pipe plugs save time and equipment expenses because they are made of solid, reusable materials and are small enough to fit through smaller hot taps.

Whether you work with water, oil, or chemical systems, these flow stop pipe plugs provide reliable sealing in out-of-round pipes, reducing equipment prices, setup time, and environmental risks.

Key Features of Petersen’s 129-8 Series Flow Stop Pipe Plugs

Petersen's 129-8 Series flow stop pipe plugs are designed for performance, safety, and reusability, and they provide many major benefits:

• Heavy Duty Reinforced Construction - These plugs, made of durable polyurethane and reinforced with ballistic nylon, are designed to withstand harsh job site conditions while maintaining flexibility and sealing strength.
• Optional Materials for Harsh Environments - Plugs made of Kevlar® or Viton® can be used for chemical resistance or high-temperature applications and they are compatible with a variety of media and pipeline conditions.
• Seals out-of-round pipes - The inflatable design fits tightly to irregular or out-of-round pipe interiors, resulting in a better seal than rigid mechanical stoppers.
• Low inflation pressure requirement - Only a little amount of inflation pressure (using water, air, or inert gas) is required to inflate the plug and equally impart sealing force to the pipe wall.
• Multimedia Compatibility - The plugs can be safely inflated with air, water, nitrogen, or other inert gases, making them suitable for use in any type of pipeline conditions.
• Reusable and Long-lasting - Designed for repeated usage, its durable build and replaceable components reduce the overall cost per use over time.

Typical Applications of High Flow Inflatable Line Stop Plugs

Petersen's high flow inflatable line stop plugs are commonly used across industries for safe, efficient temporary flow control in a range of scenarios:

• Emergency Flow Stopping in Live Pipelines - Quickly block flow without depressurizing the system to manage unplanned events or urgent repairs.
• Valve Replacement or Hot Tapping Procedures - Maintain pipeline service while isolating portions for valve repairs or system modifications.
• Temporary isolation for inspection and repair - Create a secure, sealed area for internal inspections, cleaning, or structural repair.
• Used in Municipal, Industrial, Oil & Gas, and Chemical Systems - The versatile design supports a variety of pipeline materials, diameters, and flow conditions.

Why Choose the 129-8 Series High Flow StopvPipe Plug?

129-8 Series is specifically designed for efficiency, safety, and reliability in challenging pipeline applications. Here's what makes it stand out:

1. Tolerates high flow rates - This pipe plug, designed to deal with velocities of up to 10 feet per second, is perfect for active pipelines when total flow stopping is not possible during installation.
2. No need to depressurize the pipeline - The plug allows for flow adjustment without shutting down the system, saving time and preventing operational disruptions.
3. Compact, lightweight design - Smaller hot tap holes and lightweight structure facilitate deployment while eliminating the need for heavy mechanical equipment.
4. Fast, safe installation and removal - The inflatable design allows for quick deployment and recovery, saving labor time and safety risks on-site.
5. Supports pipe integrity and reduces environmental risk - A smaller insertion footprint helps maintain pipe wall strength and reduces the risk of leaks, pollution, or environmental issues.

Need Help Choosing the Right High Flow Inflatable Line Stop Plug?

Selecting the correct flow stop plug depends on your pipeline’s size, flow rate, pressure, and application environment. If you're not sure which 129-8 Series model is right for your project, our experienced staff is here to help.

You can call Petersen Products at 262-692-3100 to speak directly with a technical expert, or email us at sales@petersenproducts.com with your specifications and questions.

FAQs

What makes the 129-8 Series suitable for high flow applications?

The 129-8 Series is designed to deal with flow rates of up to 10 feet per second, which is much higher than typical inflatable plugs. This makes it ideal for line stopping in active pipelines when entirely stopping flow would be impractical.

What inflation media can be used with these plugs?

The 129-8 Series can be inflated with air, water, nitrogen, or any inert gas. Only a small amount of inflation pressure is required to fully inflate the plug and form a secure seal inside the pipeline.

Are these flow stop pipe plugs reusable?

Yes. The 129-8 Series, made of ballistic nylon-reinforced polyurethane and available in optional materials such as Kevlar® or Viton®, is designed for long-term, frequent usage in harsh industrial environments.

What pipe sizes are supported by the 129-8 Series?

129-8 Series flow stop pipe plug supports pipe sizes ranging from 6 to 96 inches. Every model is designed to fit through a small hot tap opening while sealing securely at full inflation.