Multi Spring Seals-51U and 52U are pusher seals that are used for handling refrigerants, chemicals with minimal aggressive content and petroleum substances. Available with rotatable shaft of maximum 100 mm diameter, these seals are used for centrifugal pumps. Advanced design of these seals proves to be useful for securing rotary parts together. These seals are installed by using snap rings that are easy to remove post installation of these seals. Long working life and low maintenance design are the key features of these pusher seals.