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Lightweight aluminum plugs from Huntingdon Fusion Techniques HFT handle heavy-duty applications

The Pipestoppers® Division at Huntingdon Fusion Techniques HFT® manufactures heavy-duty aluminum plugs for plugging or sealing pipes exposed to harsh conditions such as high temperatures and immersion in chemicals. They are available in sizes 1.5 to 36 in. for use in leak testing, isolation, sealing, stopping, and weld purging.

The lightweight plugs are made with a friction-free washer to ease tightening of the ring nut to expand the rubber ring to make a completely leaktight seal. In addition, because the plugs are neutrally buoyant, they can be used in subsea environments.

The standard natural rubber seal can be replaced with silicone, nitrile, neoprene, or Viton rings to ensure they can be used for applications that require greater resistance to a variety of materials, allowing for use at temperatures up to 662 degrees F.