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Seal Support System - Plan 52

Plan 21 TFV21TFV52 is implemented in the applications which the product medium is not allowed to leak into the atmosphere.  TFV52 is constituted with the quench fluid between the chamber of a double seal.  The unpressurized buffer fluid circulates through the reservoir.  Fluid is circulated by a pumping ring in the dual seal assembly.Plan 21 TFV21