Shell and tube heat exchangers are the most common exchangers in the process industry. They are pressure vessels (manufactured in compliance with ASME code section VIII), and their main parts are the headers, the tube bundle and the enclosure. Thanks to our experience, in AESA we manufacture this equipment for different working conditions (high pressure, high temperature, cryogenics, and more) and different types of services. We use all kinds of materials and we can offer a wide range of sizes. We do all this meeting always the international construction and quality standards (TEMA, API 660, and others) and the customer's specific requirements.