Inventors:
- Fort Worth TX, US
Clinton James Riggin - Trophy Club TX, US
Assignee:
Thermacor Process, Inc. - Fort Worth TX
International Classification:
F16L 53/30
F16L 59/14
B29C 44/12
B29C 44/04
B29C 44/08
Abstract:
A method is shown for installing a heat tube on a section of pre-insulated piping. A metal carrier pipe is covered with a first layer of foam insulation. Next, a routing device is used to cut a longitudinal slot along the length of the pipe so that the pipe exterior surface is exposed from the insulation. A heat tube is then installed within the longitudinal slot, whereby the heat tube contacts the exterior surface of the metal carrier pipe. A second layer of foam insulation is then sprayed onto the exterior of the metal carrier pipe, covering the previously formed longitudinal slot and installed heat tube. A polyolefin coating is then applied over the insulation to form a protective outer jacket for the insulated pipe.