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This section provides an overview for mixed flow pumps as well as their applications and principles. Also, please take a look at the list of 13 mixed flow pump manufacturers and their company rankings. Here are the top-ranked mixed flow pump companies as of January, 2025: 1.WARSON, 2.KUBOTA Corporation, 3.Sulzer Ltd.
Table of Contents
Mixed flow pumps are pumps in which the angle of the fluid flowing out of the impeller is in the conical plane, with the centerline of the main shaft as the axis.
The impeller attached to the shaft rotates, and centrifugal force causes the fluid flowing in from the shaft side to flow out in an oblique direction to the shaft. Pressure is recovered by the volute-shaped casing and guide vane, allowing for a higher head.
Mixed flow pumps have a relatively high head and a large flow rate. They are often used in sewage pumps for sewage systems and drainage pumps for rivers and rainwater.
Mixed flow pumps are used for urban water supply and sewage, rainwater drainage, agricultural and industrial water, and cooling water for thermal power plants. They are also used for seawater intake, general water supply and drainage, and slurry drainage in coal power plants.
Mixed flow pumps are smaller and lighter than centrifugal pumps and can operate at higher speeds than axial flow pumps. Mixed flow pumps can be broadly classified into two types: centrifugal, mixed flow pumps and diffuser mixed flow pumps.
Mixed flow pumps have a spiral casing and recover the velocity energy of the fluid into pressure. They have a relatively high head and are often used for sewage pumps and cooling water circulation.
Mixed flow pumps have guide vanes fixed to the inner surface of the casing, and the fluid flows along the guide vanes to recover pressure. They are widely used as large-capacity pumps for river drainage, rainwater drainage, storm surge countermeasures, flood control, agricultural and industrial water intake, and factory drainage.
Mixed flow pumps, which are classified as turbo type pumps, generally have the following major components: casing, impeller, main shaft, bearings, and shaft seal.
The casing houses the rotor, which consists of the impeller and shaft, and has a pressure-resistant structure to expel liquid efficiently.
The impeller is made up of multiple blades that rotate to expel fluid. The angle of the fluid outlet of the blades is oblique to the axial direction.
The pressure is then recovered by the casing and guide vanes to change the flow direction to perpendicular to the axis or to the axial direction.
The spindle is the part to which the impeller is attached and rotates, and transmits the necessary power to the impeller.
Bearings support the spindle and impeller and are essential for stable pump operation. It is the part that receives thrust force from pump operation.
The shaft seal is a sealing device that seals water leakage from the penetration between the shaft and casing.
There are three main types of pumps: turbo, positive displacement, and other. Turbo pumps are classified as centrifugal, mixed flow pumps, and axial flow pumps.
Mixed Flow Pumps are one of the turbo type pumps and have the characteristics of both centrifugal and axial flow types.
The efficiency of mixed flow pumps is slightly lower than that of volute pumps, which are representative of the centrifugal type, but higher than that of axial flow pumps.
Mixed flow pumps have a narrower operating range than centrifugal pumps, but are wider than axial flow pumps. This allows for a flexible response.
The centrifugal type has the smallest head variation in relation to flow rate variation, while the axial flow type has the largest head variation. Mixed flow pumps have a head characteristic that falls between the two. Even if the head is reduced to 120%, the flow rate can be maintained at about 80%.
While the shut-off shaft power of axial-flow pumps is more than twice the rated power, the shaft power of mixed flow pumps is almost constant over the entire water flow rate. Shut-off operation is possible.
Low noise throughout the entire operating range.
Compared to axial flow pumps of the same head, the cavitation performance is superior. The required suction pressure of mixed flow pumps is about 1/2 that of axial flow pumps.
*Including some distributors, etc.
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Xylem Inc. was incorporated in 2011 and is headquartered in Washington, District of Columbia. Xylem engages in the design, manufacture, and servicing of engineered products and solutions for the water and wastewater applications across global markets. Xylem operates through three segments: water infrastructure, applied water, and measurement & control solutions. Xylem’s water infrastructure segment offers numerous products such as water pumps, filtration, disinfection, and biological treatment equipment. Xylem’s applied water segment distributes pumps, valves, heat exchangers, controls, and dispensing equipment systems. Xylem’s measurement & control Solutions segment offers devices such as smart meters, networked communication devices, data analytics, test equipment, controls, sensor devices, and software and managed services.
Vikas Pump was founded in 1984 and is based on Sahanpur, Uttar Pradesh, India as a manufacturer and supplier of lines of chemical pump products. The company offers various line of products, including Centrifugal Pumps, Chemical Process Pump, End Suction Pump, Acid Pump, and Self-Priming Pump, commonly used in Domestic Sewage Treatment Plant, Residential Sewage Treatment Plant, and Packaged Sewage Treatment Plant. The company also offers customer services to provide products that cater to the customer's specifications and preferences.
Sulzer Ltd. is a fluid engineering and chemical processing solutions manufacturer originally founded in 1775. The company has been headquartered in Winterthur, Switzerland since 1834, maintaining a network of 180 manufacturing facilities and service centers around the world. The company has an expansive product portfolio including distillation and absorption columns, agitators, reactors, crystallizers, and polymerization systems. These supply clients in the metals, plastics, chemicals, power, and pharmaceutical industries. Sulzer Ltd. also offers a range of services, such as testing and diagnostics, prototyping, retrofitting, and upgrades, including technical training with long-term support for their customers.
KUBOTA Corporation, a company established in 1890, based in Osaka, Japan, is a manufacturer and supplier of agricultural and construction machinery equipment and related products. The company provides various products such as tractors, combine harvesters, rice transplanters, engines, excavators, loaders, and generators. These products are designed to be reliable, efficient, and environmentally friendly. The products are used for various applications such as food production, water supply, and environmental protection. The company also offers engineering, installation, testing, and maintenance services for its customers.
Sintech Precision Products Ltd., established in 1986 and headquartered in Ghaziabad, India, is an ISO 9001 certified manufacturer and supplier of industrial pumps, pump spares, and related accessories. It has over 100 products, including centrifugal, dynamic sealing, torque flow, vertical turbine, and multistage high-pressure pumps. The pumps are used in various markets and applications, including energy, sugar, water, steel, and process industries. With over 30 years in the industry, the company also undertakes various contract manufacturing activities for complete pumps, sub-assemblies, or single parts. It offers a broad spectrum of materials like nickel and Hastelloy for contract manufacturing.
AxFlow UK, part of Axel Johnson AB, is a supplier of technical pumps, founded in 1958 and headquartered in the United Kingdom. The company’s pump portfolio includes both positive displacement pumps such as circumferential piston, AODD, metering, as well as centrifugal pumps which embraces DIN, ISO, double suction, magnetically driven and hygienic models. It also provides a range of pump services including installation, monitoring along with comprehensive pump and seal repair capabilities. It is one of the UK and Europe’s largest suppliers of technical pumps with offices and service locations in 26 European countries, New Zealand and Australia.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | WARSON |
17.6%
|
| 2 | KUBOTA Corporation |
14.7%
|
| 3 | Sulzer Ltd |
14.7%
|
| 4 | Shijiazhuang Kingda Pump Industry Group Co. Ltd |
8.8%
|
| 5 | AxFlow UK |
8.8%
|
| 6 | Torishima Seisakusho Co., Ltd. |
8.8%
|
| 7 | CONVISTA |
5.9%
|
| 8 | Zoomlian Pump Co., Ltd. |
5.9%
|
| 9 | Xylem Inc. |
5.9%
|
| 10 | Changzhou Dongshen Pump Co., Ltd |
2.9%
|
Derivation Method
The ranking is calculated based on the click share within the mixed flow pump page as of January 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
China
|
4 | 33.3% |
|
Japan
|
2 | 16.7% |
|
India
|
2 | 16.7% |
|
United States of America
|
1 | 8.3% |
|
Switzerland
|
1 | 8.3% |
Mexico
|
1 | 8.3% |
|
United Kingdom
|
1 | 8.3% |
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