Industrial Heat Exchanger. This Shell & tube type Heat Exchanger adheres to the latest technology, as these are specially designed to withstand high pressure & temperature so that they deliver maximum performance. The materials used are SS 304, 316 and 316L. The fabrication involves a high level of precision welding using TIG welding and submerged arc welding. They are also used as on-line chillers in beverage industry for cooling the fruit juices to 2°C. The heat transfer area varies from 1 m² to 100 m². The design as per TEMA, API standards, codes ASME SEC VIII DIV1.