Face-to-face double seal, compact design (cartridge), balanced, depending on the direction of rotation of the shaft. Requires a barrier gas supply.
The GK type seal is intended mainly for process pumps operated in refineries, in the petrochemical, chemical, coke-chemical industry, and especially in pumping systems with a higher degree of explosion hazard and increased emission of volatile substances into the natural environment.
The GK4 type seal requires a continuous supply of filtered barrier gas (most often nitrogen) at a pressure of ~ 0.2 MPa, higher than the pressure of the medium to be sealed.
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