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Cherne recently launched a line of Disc Seal plugs designed to block flow or provide bypass flow in underground pipes with low backpressure. Used for pipe construction, rehabilitation, cleaning and testing, the plugs can be separated into two halves to fit through any manhole effortlessly. They are built with two field-replaceable double bladders to ensure a leakproof seal up to five pounds per square inch (PSI) of backpressure. In addition to being built with lightweight, corrosion-resistant aluminum, the plugs come with handles for easy installation and transport. Also, contractors can be confident the plug will fit by simply separating the plug into two halves. The plugs are available sizes ranging from 24 inches through 96 inches.
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