Under what circumstances should a mixed-flow pump be used?

I want to know too, but there’s very little information on the forum. I searched for \"mixed-flow pump\" – under what circumstances should a mixed-flow pump be used? Technical Exchange Area for Process and System Design 04020402008-12-30 0 / 62008-12-30 17:22 by 0402040 Request for “Acceptance Test Procedures for Centrifugal Pumps, Mixed-Flow Pumps, and Axial Flow Pumps” (ISO/DIS5189). Member Q&A and Reward System guoguo04212008-8-20 7 / 1832008-12-8 22:45 by hr3221 GB/T 13469-2008 – Economic Operation of Centrifugal Pumps, Mixed-Flow Pumps, Axial Flow Pumps, and Vortex Pumps Systems.pdf. GB National Standard System hgl1970042008-11-12 0 / 922008-11-12 08:24 by hgl197004 GB/T 13008-1991 – Technical Requirements for Mixed-Flow Pumps and Axial Flow Pumps. GB National Standard System honghua5092008-11-9 0 / 702008-11-9 08:43 by honghua509 Where can I find corrosion-resistant mixed-flow pumps? Production Technology Exchange Area qhlylxj2008-10-1 0 / 342008-10-1 11:06 by qhlylxj Urgent! ! ! Seeking GB/T 3216-1989 Test Methods for Centrifugal Pumps, Mixed-Flow Pumps, Axial Flow Pumps, and Vortex Pumps – Technical Exchange Area for Conveyance Equipment wuchangjian2008-7-21 2 / 4472008-9-5 09:33 by Kangaroo JBT 6433-1992 Large and Medium-Sized Vertical Mixed-Flow Pumps: Types and Basic Parameters () Temporarily closed. Standard uploading and sharing (posts allowed, replies not permitted) bigcan2008-8-27 0 / 262008-8-27 22:27 by bigcan GB/T 18149-2000; Test Specifications for Hydraulic Performance of Centrifugal Pumps, Mixed-Flow Pumps, and Axial Flow Pumps – Precision Grade, GB National Standard System gowithwind2008-8-26 0 / 2092008-8-26 20:05 by gowithwind What is the difference between axial flow pumps, mixed-flow pumps, and inclined-flow pumps? Transportation Equipment Technology Discussion Area – Orion, 2008-8-7, 2/230. Posted on 2008-8-7 at 17:42 by hcbw. Question: What is the difference between mixed-flow pumps and centrifugal pumps? Transportation Equipment Technology Discussion Area – xsun12, 2008-6-12, 3/235. Posted on 2008-6-12 at 21:27 by duandewu1205. “Economic Operation of Centrifugal Pumps, Mixed-Flow Pumps, Axial Flow Pumps, and Vortex Pumps” (Draft for comments). Process and System Design Technology Discussion Area – honhxl2008, 2008-4-22, 2/168. Posted on 2008-4-22 at 08:35 by kntpqh. Economic Operation of Industrial Centrifugal Pumps, Mixed-Flow Pumps, Axial Flow Pumps, and Vortex Pump Systems. Transportation Equipment Technical Information Exchange Area – lingfree2008, 2008-4-7, 0/87. Posted on 2008-4-7 at 17:01 by lingfree. JB-T6666.2-2004: Guide vane type mixed-flow pumps – Part 2: Technical specifications. This section is currently closed. Standard uploading and sharing (posts are allowed, but replies are not). lanxueyouhun2008, 2008-1-29, 0/96. Posted on 2008-1-29 at 08:06 by lanxueyouhun. ABS mixed-flow pump information. Transportation Equipment Technical Information Exchange Area – hnyycjm2007, 2007-9-29, 0/201. Posted on 2007-9-29 at 16:52 by hnyycjm. GB/T 13006-1991: Centrifugal pumps, mixed-flow pumps, and axial flow pumps – NPSH. GB national standard system. sunton2006, 2006-12-15, 0/336. Posted on 2006-12-15 at 09:51 by sunton

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In terms of appearance and structure, mixed-flow pumps lie between centrifugal pumps and axial-flow pumps； The principle of water pumping in a mixed-flow pump involves the high-speed rotation of the impeller, which generates both the centrifugal force of a centrifugal pump and the thrust force of an axial-flow pump; the mixed-flow pump relies on the combined action of these two forces to pump water. The performance of mixed-flow pumps also lies between that of centrifugal pumps and axial flow pumps. Compared to centrifugal pumps, they have a lower head but a higher flow rate ； Compared to axial flow pumps, it has a higher head but a lower flow rate. Given our country’s vast territory and complex terrain, this provides an additional option for selecting pump types that are suitable for specific conditions. # X! {% l- I1 X 　　The performance of mixed-flow pumps is expressed in terms of operating parameters. Such as flow rate, head, power, efficiency, speed, etc. At a certain speed, with flow rate as the variable, in other words, if the flow rate of the water pump is changed, then the pump’s head, power, and efficiency also change accordingly. By graphically representing the patterns of change in these interrelationships through several curves, we obtain the pump performance curves. The performance curve of a mixed-flow pump also lies between that of a centrifugal pump and an axial-flow pump. For mixed-flow pumps with high head, the relationships between flow rate and head, as well as between flow rate and power, follow patterns similar to those of centrifugal pumps. In operation, it is possible to start the pump with the valve closed; this results in the lowest power consumption and ensures safety for the driving motor. For low-head mixed-flow pumps, the variation patterns among their performance parameters are similar to those of axial-flow pumps. In terms of operation, it is not advisable to start such pumps with the valve closed; instead, they should be started with the valve open. This results in lower power consumption, reducing the risk of the motor being damaged.

I also want to know under what circumstances a mixed-flow pump should be used

For high flow rates (several hundred to several thousand) and low head (only a few meters), an axial flow pump should be used； For high flow rates (several hundred to several thousand), and where the head is not very high (10–20 meters or so), mixed-flow pumps are suitable