Manufacturers, Suppliers and Exporters of Pressure vessel in Coimbatore, India.We Heat Transfer Equipments Pvt ltd extend our global services with design and manufacturing of all types of pressure vessels for the Industries with (or) with out U stamp as required. Below are some of pressure vessels up to 250 bar pressure can be manufactured in Heat Transfer Equipments Pvt Ltd. A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. Generally, a pressure vessel is considered to be thin-walled if its radius is larger than 5 times its wall thickness.