Nomenclature and Construction Forms

Mechanical face seals – also known as “Duo Cone Seals“ or “Toric Seals“ – are used especially for rotary shafts in adverse and dirty environments. Due to their outstanding technical features mechanical face seals have achieved worldwide distribution. Different geometric designs and material modifications of the metal and rubber parts can be found depending on application and construction of the sealed units.

The standard seal usually utilised consists of two metal rings and two O-rings assembled to a set, which is inserted into specially shaped, conical cavities. Alternatively, seals called “Square Bore Seals“, are established in the market, which fit in cylindrical cavities, using belleville-washer springs. Depending on application, design characteristics and operating conditions, the selection of the most appropriate sealing system is carried out.