BM16 Multi Spring Balance Seals is Pusher Type Balanced seals used for general Purpose and Universal application. Although being Balanced Seal The unbalanced sleeve and unstepped shaft can be used for this seal without modification of Sleeve and Shaft. BM16 Multi Spring Balanced Seals Specially used for Solids Containing and Highly viscous Liquids. Springs are protected from the Media by Dynamic O-ring for high pressure application.