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Drip Leg

A vertical length of piping or tubing that is designed to capture any water droplets that may be traveling inside compressed air distribution piping or tubing. An automatic or manually operated drain valve is installed at the lowest point of a drip leg to allow the removal of the water that has accumulated.

A drip leg typically forms the lowest point of an air drop, but may also be installed in an air header.

See also PEI/RP700.