Abstract: An isolated tracer includes an elongated tube, a layer of insulation covering the tube, and a layer of tape compressing the insulation to provide a desired conductance rate for the isolated tracer. The isolated tracer is made by passing a pipe concurrently through a funnel-shaped die with a layer of insulation and wrapping tape around the insulation after it leaves the die. The insulation is compressed to a desired amount to provide a desired conductance rate by adjusting tension on the tape as it is wound about the insulation covering the tube.

Abstract: The invention pertains to the apparatus and process for shaping and forming of thermal insulation materials around tubes and pipes in a continuous production process wherein the tube or pipe and a long singular strip of insulating material passes linear with the tube or pipe through a shaping die. The shaping die forms the insulating material around the circumference of the tube or pipe without substantial compression and is captured by overlapping coils of helical wound tape, wire or like material.