Metal-jacketed gaskets are particularly suitable for sealing flat surfaces of heat exchangers, gas pipes, cast iron flanges, and autoclaves and similar, By their sealing efficiency, provided by exerting strong pressure on circular rims of the flanges, metal-jacketed gaskets can stand up to 3o% deviation from the initial thickness, which is very useful in case of irregular or faulty flange rims. The chemical compatibility of the metal and the medium being sealed should be considered. The metallic jacket is normally 0,4 mm thick. Other materials are available on customer request. The metal jacketed gaskets come in sizes according to EN 1514-4 ASME B 16.21 standards, Metal-jacketed gaskets are produced in several types to meet the requirements of the most demanding applications.