Purpose. Used as a shaft seal for centrifugal machines pumping aggressive, toxic, radioactive, explosive and fire hazardous liquids.
Scope. The development is applicable at chemical plants, rocket and space complex enterprises and coal industry enterprises.
Advantages. Virtually unlimited service life of the friction pair; high reliability; minimal energy losses due to friction; minimal sources of the shut-off medium; simplicity of design and manufacture; cost-effectiveness
Description. The development is a two-stage contactless mechanical seal with a radial arrangement of stages, between which the shut-off medium (liquid or gas) is supplied.