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  • Click a Product
    Category
  • Accessories & Fittings
  • Annular Seals
  • Contractor Tools
  • Custom Inflatable
    • Annular Seals
    • Bladders
    • Duct Balloons
    • Grout Bags, Inflatable Tunnel Seals
  • Drain and Sewer Cleaning Tools
  • Duct Balloons
  • Hot Taps & Line Stops
    • Completion Plugs
    • Hole Saws
    • Hot Tap Sleeves
    • Hot Tap Tools
    • Pipe Plug Hot Tap Insertion Systems
    • Retrieval systems
    • Through the Valve Plugging Systems
    • Videos - Multi-Flex
  • Lifting Bags and Pipe Handlers
    • 116 PSI Flat Form Lifting
    • 145 / 116 PSI Heavy Duty Lifting
    • Pipe Handlers
  • Packer/Carrier
  • Pipe Plugs and Stoppers
    • Accessories
    • Hot Tap Insertion Systems
    • Inflatable Plug
    • Mechanical Plug
  • Temperature & Pressure (Pete's Plugs)
    • 310-Series T&P Plug
    • 311-Series Pete's T&P Plug
  • Test Equipment
    • Deflection Gauges
    • Joint Testers
    • Leak Pressure Testing
    • Smoke Testers
    • Stringers & Ventilators
    • Test Pumps - High Pressure
    • Test Pumps - Standard Pressure
    • Vacuum Testers
  • Custom Manufacturing
  • Capabilities
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Home > Library
 
> Case Studies

Case Studies

Cooling Loop Valve Replacement

Private Provo Beach Made More Beautiful

Miscellaneous Case Studies

Inflatable Bag Stops enable critical plant maintenance without shutdowns

Angola LNG Case Study

Dewatering in Extreme Environment: Annular Seal Use in Deep Water Welding Repair

Petersen Inflatable Line Stop Keeps an Oil Sand Facility Producing

Plugging Active Pipes in Extreme Environment

Plugging a 60" Water Pipeline

72" Petersen® Multi-Flex™ Line Stop for a Valve Change

High Pressure "Bag Stop"

24" Sewer Main Repair

Grouting a 60" Pipe for Abandonment

How to Plug a Large Sewer


Warning: All pipe plugs must be blocked or anchored adequately against a force equal to the head pressure times the cross-sectional area of the pipe. Debris or protrusions in the pipeline can damage a seal or rupture inflatable plugs. NEVER use an inflatable plug when its failure could cause injury or catastrophic damage or as the only means of protection for personnel working downstream. NEVER use a test pressure greater than the capacity of the weakest pipe or component in the system. Actual conditions vary so user must accept full risk and responsibility for the selection and use of any product. Please review our Warranty, Terms and Conditions.

Note 1: Mechanical and Molded Rubber Plugs are generally used for testing because fabricated Multi-Flex® style plugs may allow some seepage unless customized for a positive seal.

Note 2: We are constantly upgrading our products and while we try to keep the websites up to date it is possible more current specifications may be on a quote or confirming order. Images are typically representative and may not be an exact representation especially of the item size.

Petersen Warranty, Terms & Conditions Apply

Petersen Website Terms and Conditions

Price subject to change without notice

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Fredonia, WI 53021-0340

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