Gas-lubricated

The GF is a mechanical seal recommended for applications where particular product purity must be ensured and where friction heat causes its changes. It is designed to work with toxic, carcinogenic, explosive (with the possibility of self-ignition) media, for process gases, etc., in chemical, petrochemical, pharmaceutical, metallurgical, coking plants and other industries.

The GK seals are designed mostly for process pumps used in refining and petrochemical industries, in chemical industry and coking plants, and in particular in pump installations with a high level of explosion risks and increased emissions of volatile substances into the environment. The GK seal requires continuous supplying with filtered barrier gas (most commonly nitrogen) of pressure ~ 0.2 MPa higher than the sealed medium pressure.