1.Introduction
DDL serial is horizontal volute double-sction pump. This serial pump is an unique new product which is developed by our company by combining the advantages of the products of many other factory. DLL serial pump adopts inner arranged sealing and lubrication structure. The lubrication, flushing of seal system by closed circulatingwater are more direct, efficient. Linearity designed outline, the casing cove with streng structure make the pump to be on intrgrated mass, flexible stucture design makes pump more nicer. The casing inlet and outlet of DDL pump are both located under the casing. thus the rotor can betaken out without disassambling serial pipeline, so its maitenance is very convenient. Most part of the casing adopt double-passage design to reduce radial force. Casing, casing cover both adopt resin sand board moulding, this ensures a good appearance, accurate passage dimensions and high efficiency. Transmission is driven by motor through flexible coupling. Turn direction:clockwiserotation viewed from drivinged for clockwise rolate, and counter-clockwise viewed from drivinged for counter-clockwise rotate.
2.Applications
They are applicable to power station, water supply, municiple, contruction, fire fighting and mine, which are used in transporting clean water or liquids whose physical and chmical characteristic are similer to water
