What are clamp-on pipeline heaters?
Clamp-On heaters are rectangular steel tubes approximately 2-inches wide and 1-inch high. The side of the heater in contact with the pipeline is formed to the radius of the pipeline to provide a close fit to the pipe surface. Ends of the specially formed tubing are capped, and couplings are installed at each end for inlet and outlet of heating media. These heaters have a maximum length of 6m (20 feet) and jumpers are used to connect a series of the heaters along the pipeline. Manufacturers recommend the use of heat transfer compound on the curved surface of these heaters to improve the thermal connection to the pipe surface. Generally, these heaters are anchored to the pipeline by the use of steel or stainless steel strapping material.