Article | REF: BM5426 V2

Mechanical seals - Assembly, maintenance and failures

Author: l'Association des roulements des transmissions de l'étanchéité et de la mécatronique associée (ARTEMA) Groupe Technique « Étanchéité dynamique » composée des sociétés :

Publication date: October 10, 2012

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1. Description and construction of a mechanical seal

The basic principle of the equipment is to ensure a seal between two faces in relative rotational movement, lubricated by a liquid or gaseous film at the interface. This sealing device may comprise one or more mechanical seals and the ancillary accessories required for its use.

A mechanical seal is made up of two sub-assemblies, each incorporating a friction face. One is static and the other is dynamic and rotating (figure 1 ). The main seal is formed at the interface between these two sub-assemblies.

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Description and construction of a mechanical seal