旋涡泵的效率一般不超过40%。
泵配有旋涡叶轮，是最好的无堵塞叶轮，用于进行泥浆，未经处理的污水，粘稠液体，破布，木屑和其他固体。
The SV-pumps are equipped with Vortex impellers, undoubtedly the best non-clog impellers ever invented for the handling of mud, raw sewage, viscous liquids, rags, wood chips and other solids.
对一种小流量旋涡泵的汽蚀性能进行了理论分析及试验研究。
The theoretical analysis and experimental study of a small-flow high-head vortex pump are carried out.
本发明是一种高效的正旋涡泵，属于流体机械。
The invention is an efficient positive vortex pump, which belongs to fluid machinery.
将流程泵叶轮叶片和压水室的隔舌看作旋涡发生体，在不同运行工况下在叶片后缘以及隔舌两侧串联发生的卡门涡街的发射频率是不同的。
The emission frequency of the Karman vortex street occurred in series from the blades and tongue is varing with the running condition.
WTD系列同轴机械密封式单级旋涡泵是我厂最新设计的更新换代产品。
WTD series of coaxial single-stage mechanical seal type vortex pump is the latest design of our factory replacements.
WX系列为离心旋涡泵。
通过对PLW- 8型旋涡式屏蔽泵的设计及试验研究，介绍了该类型泵的水力设计及结构设计，总结了设计要领，并将一些重要参数对泵性能的影响做了探索。
Through the design and experimental research of PLW-8 peripheral canned pump, the hydraulic design and structural design of this type of pump are introduced and the design main points are summarized.
介绍了小流量WT型单级旋涡泵的工作原理、研制中解决的主要问题以及试验结果。
Working principle on model WT low-flow single-stage regenerative pumps are presented. Key problems are solved and testing result is got up in the pump developing.
它克服了现有旋涡泵的低效率、小流量和扬程有限等不足。
The positive vortex pump overcomes disadvantages of low efficiency, small flow and limited hoisting height of prior vortex pumps.
全旋涡旋干式真空泵，属于真空获得设备领域。
The invention relates to an all volution rotary drying vacuum pump, belonging to the vacuum production equipment field.
CWX系列船用卧式自吸离心旋涡泵，分为有托架和无托架两种。
Marine horizontal CWX self-priming centrifugal vortex pumps series Marine self-priming centrifugal vortex pumps horizontal, divided into a carrier, and without brackets two kinds.
CX系列船用单级旋涡泵主要作为船用辅助锅炉系统配套用的给水泵，也可作其他输送清水的用途。
CX Series Marine single-stage vortex pump system, primarily as a Marine auxiliary boiler feed pumps used in matching can also be used for other transportation of water use.
CX系列船用单级旋涡泵主要作为船用辅助锅炉系统配套用的给水泵，也可作其他输送清水的用途。
CX Series Marine single-stage vortex pump system, primarily as a Marine auxiliary boiler feed pumps used in matching can also be used for other transportation of water use.
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