Line Stops are used to temporarily shut off flow of an in-service piping system by inserting a plug device. Team Line Stops (or plug offs) are done after a hot tap has been completed, isolating sections of pipe for repair, maintenance or reconfiguration such as adding valves. Team offers Line Stops for low, medium and high pressure piping systems as well as vacuum piping systems.
The Line Stop involves the use of Team’s custom-designed full encirclement split tee fitting (A), the cutting of a hole in the pipeline (B), and the inserting of a process compatible plug to block and stop product flow (C).
Team’s Line Stops provide a better, safer seal on all types of pipe. After plugging, the valve is removed by installing a completion plug in the Team SealTite® flange (D). Unlike other seals that depend on an O-ring alone, the Seal Tite® has a metal-to-metal seat backed up by a high temperature O-ring. If re-entry into the pipe is ever required, a safe re-entry and reseal can be made through the same closure flange.
Team’s Line Stops can be applied to pipes 1/2" to 48" in diameter, and enable pipelines and plant piping systems to be isolated for repairs or additions without causing an interruption in service or loss of products.
Team’s Line Stop services are used extensively by petrochemical plants, refineries, municipal water districts, hospitals, steel mills, nuclear power plants, and pipeline operating companies.
| Operating pressures for Team Line Stops include the following ranges: |
- 1/2" through 36" up to 1480 psig (100 Bar)
- 36" through 48" up to 150 psig (10 Bar)
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| Team’s most requested Line Stop services include the following: |
- Piping systems from 1/2" to 48" in diameter
- Pressured piping systems to 1,000 psig (69 Bar)
- Piping systems with temperatures from -25°F (-32°C) to 550°F (288°C)
- Piping systems of carbon steel, stainless alloys, cast iron, concrete and plastic
- Piping systems containing steam, water, hydrocarbons, acids, bases, plus other chemical and gases
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