Dry Running Seal
Chemical, food and pharmaceutical industries use dry running seals on centrifugal pumps, vessels, agitators and mixers of low RPM as a solution for corrosive fluids. The name of this seal is after its ability to dry run seal faces without the need for external lubrication. It is a multiple spring which is mounted externally. This reverse balanced seal has a secondary sealing member called O-ring. While using this type of mechanical seal, there is no need to use an auxiliary equipment for the purpose of cooling and lubrication. Product media is not contaminated as there is no use of barrier fluid.