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Low Cost Pipe Stopping for Tight Access


Pipe blocking, plugging and sealing for duties such as repair work, leak testing, weld purging and debris stopping is easy with Pipestoppers®. 

The Pipestoppers® Division at Huntingdon Fusion Techniques HFT® design and manufacture a Range of Mechanical and Inflatable Pipestoppers® and Plugs to suit a variety of applications.

The Low Profile Stopper is available for applications where insufficient length of pipe is available for the regular Cylindrical or Spherical Inflatable Stopper.

Ron Sewell, Chairman at HFT® said: “The Low Profile Stopper can fit into a pipe end that may be directly on an elbow or just inside a flanged neck on a casting. Other applications include blocking pipe ends to keep gases inside or to keep debris and vermin out.”

“When used in a vertical mode, these Low Profile Stoppers have already been used to prevent machine swarf or tools from falling into pipes, into an unrecoverable and dangerous situation, in a nuclear power steam turbine.”

Manufactured from tough, robust fabric, these Low Profile Inflatable Stoppers are available in sizes 6 to 88” (150 to 2,235 mm) and provide excellent grip inside the pipe, with an effective airtight seal.

Each Low Profile Stopper is fitted with a standard Schrader Valve connected to a 1.2m hose, is easy to inflate using a foot pump or compressor and is heat resistant up to 90ºC (194ºF). 

The Pipestoppers® Inflatable Stoppers range contains: 

  • Cylindrical and Spherical Stoppers: an easy way to stop the flow of gas or liquid inside pipes and ducts. Available up to 96” ø (2,440 mm). For higher temperatures, these Inflatable Stoppers can also be manufactured with a Heat Resistant Cover for temperatures up to 300ºC (572ºF).
  • PetroChem® Stoppers: manufactured from high-grade latex, they are used for stopping off pipes containing hydrocarbon gases and liquids.
  • Inflatable Rubber Plugs: these offer a wide diameter range. Tough and durable they are resistant to many chemicals and hydrocarbons They can be used for higher-pressure applications.
  • The Pipestoppers® Division manufactures a range of Aluminium Mechanical Stoppers and Plugs for industrial plumbing operations, water drainage systems as well as offshore operations. These are negatively buoyant for sub-sea work and can be used in all kinds of pipes and other vessels where there are orifices to be sealed or blocked.

The Pipestoppers® Division of HFT® also provide Pipe Freezing Systems that make ice plugs inside pipes, to stop the flow of liquids so that maintenance can be carried out on valves, etc. This technique avoids the draining of a complete pipe system that might have an expensive product inside, ranging from heated water to expensive petrochemical fluids. Freezing can be carried out remotely where, for example, hazardous environments may preclude access by service personnel.



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