Publisher's Synopsis
Excerpt from Proceedings of the Thirtieth Annual Convention of the American Water Works Association: Held at New Orleans, L. An., April 26-30, 1910
There is upon the market a semi-direct displacement impel ler pump that has been operated with success with water wheels, and has also been connected to the electric motor. This pump compares favorably in mechanical efficiency with the triplex, and its comparatively high speed - from 200 to 400 r.p.m. Makes it adaptable to direct motor connection under exceptional circumstances and permits a moderate speed reduction in the usual case Where gearing is used. These pumps will Operate efficiently aganist the usual water works heads. Like the tri plex pump, however, they are particularly adapted to the higher heads involved in pumping to the distribution system.
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