A unique hermetically sealed centrifugal pump!
Dry mounted true cantilever with mag drive and non-product lubricated bearings.

The pump presented here is a true cantilever pump and features non-product lubricated bearings and mag-drive, i.e. no mechanical shaft seal.
Because the pump is gas pressure compensated it makes it ideal for dry mounting since pumped media cannot rise inside the pump.

 

The pump design has several novel features that maximize all heat transfer modes; convection, conduction and radiation. The lower section of the pump features separated heat soak zones with thermal barriers for a steep temperature gradient along the shaft. To facilitate this high temperature drop, a closed loop forced gas cooling is achieved by an auxiliary mag drive blower.

 

Both pump and blower are equipped with high-temp magnetic couplings, driven by standard electric motors. The system is hermetically sealed, making it leak tight and without any gas consumption.

The magnetic drives have minimum eddy-current losses.

 

The pressurized gas containment makes the pump suitable for both high- and low mounting position for optimum hydraulic performance.

 

Bearings are incorporated with a thermal expansion compensated system and run in a pressurized inert gas environment. Bearings are lubricated by a separate media so that pump dry running is without restrictions.
In cases where product vapor would deposit in cold areas, gas purging can be incorporated to prevent vapor mitigation.

                                                                                                                                         

Generous radial clearances between rotating- and stationary parts ensure no contact even during most extreme temperature differentials or in case of vibrations.

 

The centrifugal pump is suitable for medium- to high flow applications and relatively low head requirements.

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Overall, the pump is designed for high safety and reliability while operating at ultra-high temperature.