What is a large flow centrifugal pump? Large flow centrifugal pump is one hour or a minute of high water, such as 1000 square / hour, so that we can call it a large flow pump centrifugal pump. Large flow centrifugal pump how to choose? First of all, we have to determine its parameters, such as the number of cubic meters per hour flow, how much head, caliber. Large flow centrifugal pump generally has a characteristic, that is, such pumps head is not high, generally only a few meters are tens of meters. Next we have to determine whether such pumps are submersible pumps. Next, we will introduce the often used large flow centrifugal pump model.
Large flow centrifugal pump non-diving series, the general choice of SOW series in the open pump, the pump is also a single-suction double-suction centrifugal pump. This pump is mainly applied to the delivery of water, we have to look at the characteristics of this centrifugal pump:
Allowable working pressure of 2.5MPa; that pump inlet pressure + pump head ≤ 2.5MPa. According to the maximum pressure of the pump casing, the pump body and pump cover material is gray cast iron (1.6MPa), ductile iron (2.0MPa), cast steel (2.5MPa). When ordering please indicate the pump pressure or material.
Medium: the water temperature ≤ 105 ° C or similar physical and chemical properties of other liquid water (solid particles ≤ 80mg / L).
(SKF, NSK, NTN) high-quality bearings, smooth running, low noise, long service life, easy maintenance, long running time, oil cup with constant oil level, can also be used with thin oil lubrication. long.
These are the characteristics of large flow centrifugal pump. Large flow centrifugal pump diving series model for the QW series submersible sewage pump, this series of pumps can be applied to water or sewage. Such a large flow submersible pump for a wide range of sewage can also be used in the above laborers, the pump body, the impeller is made of stainless steel 304,316, etc., of course, ordinary cast iron.
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