The manufacture of chemical products from natural gas and naphtha in refineries places high demands on the process instrumentation. In different process steps, such as cracking, condensation or distillation, the respective intermediate or finished products are manufactured under defined pressure and temperature conditions. The high precision and quality represented by BYMS ensure maximum plant availability here. Since the handling of the various gas mixtures and the highly flammable naphtha is not without danger, for example, our ATEX tested and certified measuring instruments make a contribution to the required safety.