Used to temporarily block water and sewer pipes and drainage systems for low-pressure testing during maintenance and emergencies, single- and double-steel plugs from the Pipestoppers division of Huntingdon Fusion Techniques HFT (West Melbourne, FL) are suitable for pipes ranging in diameter from 2 in to 48 in (50 mm to 1,200 mm).
The plug is inserted into the pipe and the wing nut tightened to force the top and bottom plates together, thereby expanding the rubber ring to seal tightly in the pipe. Designed for heavy-duty applications, the plugs can be immersed in water for long periods of time, at high temperatures, and in acidic or alkaline environments. Sealing rings are available in viton, silicone, neoprene, nitrile, or natural rubbers for resistance to different temperatures and chemicals.
Single-steel plus have ½-in outlet for diameters up to 6 in, 1-in outlet for diameters of 8 in to 18 in, and 2-in outlet for diameters of 20 in and larger. Single plugs tend to tip over like a butterfly valve as they approach their pressure limits, so double-length double-steel plugs are available with ½-in outlet for diameters up to 6 in, 1-in outlet for diameters of 8 in to 18 in, and 2-in outlet for 20-in-diameters and above.
HFT COB USA, 6909 Vickie Circle, West Melbourne, FL 32904, 321-723-3200, Fax: 321-984-8455, email@example.com, www.huntingdonfusion.us.
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