Seal systems - Import export

Magnetic couplings are used as transmission mechanisms in modern pumps, which makes it possible to obtain a qualitatively new 100% tight device without making essential changes to the design of the electric drive and the wet end of the pump. At present Villina offers GNVC, GNGC and GNVC-P series vertical, horizontal and semi-submersible centrifugal pumps with magnetic couplings, designed for pumping explosive and flammable, toxic and corrosive fluids (petroleum products, alkalis, acids, alcohols, etc). PURPOSE Magnetic couplings for Villina centrifugal pumps allow for transmission of torque from the electric motor to the pump shaft using magnetic fields generated by permanent magnets instead of mechanical engagement devices. At the same time, there is no need to withdraw the shaft from the pump wet end to the drive device, therefore the wet end can be made in the form of a completely sealed system free of leaks which are typical for pumps with mechanical shaft seals.

Villina-GNVCP-2T type vertical electric semi-submersible pumping units are designed for transit in stationary conditions of neutral, corrosive, toxic, as well as explosive and fire hazardous liquids, the vapors of which can form explosive mixtures with air. These are used in gas, petrochemical, petroleum refining and other industries. The vertical semi-submersible pump – the pump part is fully or partially in the pumped liquid. The unit consists of a pump part, drive sections, a base plate, a device that transmits torque from the drive, an electric motor (drive). The ground part comprises a console fastened to the base plate, an electric motor mounted and fastened to the console, and a mechanical seal support system fastened to a base plate. The semi-submersible part comprises drive sections fastened to the base plate, an elastic coupling body connected to the lower drive section, a pump connected to the elastic coupling body and a discharge line.