Image presentation about.. Line Stopping

Size on size line stop fitting with completion plug

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Line stopping (Sandwich) valve

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Line stopping machine is installed

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Line stop goes down and valve is opened

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Line stop is installed

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Line stop is installed against the flow direction

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Line stop now is in the right position

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Vent off product

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Mid section can now be cut

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Inside the run pipe

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After modification/repair..

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Upstream head is removed first

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Followed by Downstream plugging head

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Bypass can now be de-commissioned

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Completion plug is lowered through valve into throat of flange

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Drive Segment is advanced to secure plug in position of flange

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O Ring provides pressure seal

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All fittings blanked off - Job complete

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