Apparatus for internally coating pipes

Details Apparatus for internally coating pipes Apparatus for internally coating pipes

B - Operations, Transporting

05

B

32/22.5

B05B 13/06 (2006.01) B05C 7/08 (2006.01) F16L 55/162 (2006.01)

Patent

CA 1276783

Abstract: The invention provides an apparatus for coating the internal surfaces of pipes. The apparatus comprises two pigs which engage against the internal pipe surfaces and are movable through the pipe. The pigs define an intermediate zone between them for receiving the coating material. A spraying device capable of spraying material in the radial direction communicates with the intermediate zone via a material feed line. Upon being drawn through the pipe, the coating material is fed from the inter- mediate zone to the spraying device which atomizes the material and sprays it onto the internal surfaces of the pipe. This assures complete coating of the internal surfaces but avoids the need for coating material feed lines leading to a material reservoir outside the pipe.

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