What is spiraled tracing and how well does it work?
Spiraled tracing is where the steam tracer is spiraled around the pipe, generally thought to provide more heat and eliminate multiple tracers. However, this method of tracing is very inefficient and is not recommended except for tracing very short runs of horizontal pipe 50mm (2-inch NPS) and smaller lengths of pipe less than 6 meters (20 feet); or to trace vertical pipes. Bare spiraled tracers expand circumferentially causing the tracer to grow away from the pipeline like a coiled spring, thus decreasing the heat transfer rate because of the increased air space between the tracer and the pipeline. On horizontal piping runs, pockets at the bottom of the tracer collect condensate and cause for more frequent trapping.