Process Heaters & Heat Tracing

Process heaters and heat tracing keep liquids at the right temperature in tanks and pipes, prevent waxing of crude and viscous products, and protect lines from freezing in cold-weather and air-conditioned areas. Seven Star LLC, an independent supplier in Muscat, supplies Chromalox electric heaters and Raychem heat tracing to oil and gas, chemical, water and process plants in Oman and the GCC.

Types of equipment in this category

Chromalox screw plug immersion heaters such as the MT/EMT and MTS/EMTS ranges heat water, oils and solutions in small tanks. Flange heaters like the Chromalox STFX handle larger tanks and higher loads, with sheath materials and watt densities chosen for the fluid. Circulation heaters heat fluids flowing through a pipe loop. Raychem self-regulating heating cables maintain pipe and vessel temperatures and reduce output as they warm, while skin-effect tracing such as the STS system heats long pipelines up to many kilometres from a single supply point.

How to select a heater or tracing system

For immersion heaters, define the fluid, required temperature rise and heat-up time, then calculate power and choose watt density and sheath material to avoid fouling or overheating the fluid. Choose the terminal enclosure for the area classification. For heat tracing, calculate heat loss from pipe size, insulation and ambient conditions, then select the cable type, output and control method. Hazardous areas need certified cables, terminations and temperature limiters.

Data needed for a quotation

Send the model, or the fluid, tank or pipe details, temperatures, power supply, hazardous area classification and quantity.