Method for the repair of the inside of installed conduits

Details Method for the repair of the inside of installed conduits Method for the repair of the inside of installed conduits

B - Operations, Transporting

24

C

189/12, 26/155,

B24C 3/32 (2006.01) B05D 3/12 (2006.01) B05D 7/22 (2006.01) F16L 58/10 (2006.01)

Patent

CA 1311912

ABSTRACT There is provided a new and useful method for the repair of installed conduits characterized by the following method steps: drying of the inside of the line by flow-through of pre-dried compressed air, removal of interior coatings by flow-through of a mixture of compressed air and particles of an abrasive medium with a mean exterior diameter of > 0.8 mm and a specific weight of > 3.0 g ? cm-3 in an amount of >1.0 g ? Nm-3, the mixture flowing through the line with a mean speed of > 10 m ?s-1, relative to normal pressure, and blowing out the line by means of pre-dried compressed air.

571706

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