Hermetic Pumps: : The Latest Innovations and Industrial Applications of Sealless Pumps.

The development of hermetic (sealless) pumps over the last half century are traced and recent design innovations are described. The current state of the technology is analyzed. The design, performance, and application of hermetic centrifugal pumps and rotary displacement pumps are studied. This work reviews past achievements in pump technology, and provides the impetus for the further development of sealless pumps. It analyzes the present state of technology of hermetic centrifugal pumps and rotary displacement pumps, and details the design and application of such machines.