In a complex sector like the chemical one, it is necessary to foresee particular precautions in the planning of the mechanical seals on the pumps of processing machinery. In fact, the majority of mechanical seals for the chemical industry are planned to operate with aggressive fluids, dangerous and pollutant liquids, but also in operation of extreme temperature conditions that these liquids can reach during processing. For this reason, the reliability and the safety of the sealing system must be at its highest level to allow the productive procedures to operate in complete safety and functionality. In this respect in fact, chemically inert materials are often used for the mechanical seals produced and, depending on the specific sector's use, alumina, PTFE, Kalrez or FEP can be used. In this way, MeccanotecnicaUmbraGroup answers all the productive standards that underlie the production of mechanical seals for the chemical sector in complete conformity of the regulations in force.