Vertical Axial Flow Pump

The Vertical Axial Flow Pumps can be used in various application, and base on the different requirements, we developed a wide performance range as follows:

■ Flow rate: Q=300～38,000 （m³/h）

■ Total head: H= 1～300 (m)

■ Speed: n=180-1450rpm

■ Fluid temperature: T= 0～150℃

■ Fluid s.g.: γ≤1.4

■ Vertical Space-Saving: 

The vertical axial flow pump and motor are vertically installed and the pump casing is submerged in the fluid source. This vertical design significantly minimizes the required floor space and footprint compared to horizontal axial flow pumps, and thus it is quite suitable for sumps, pits, tanks and other similar scenarios.

■ High-Flow & Low-Head: 

The vertical axial pumps are designed and built to deliver large amount of liquid efficiently with big flow rate and low discharge pressure, thus they are ideal for applications where require the big flow rate while lifing the liquid with low height.

■ Robust Construction:

Those vertical axial flow pumps are mainly designed for continuous, heavy duty or even corrosive applications, therefore they are always made from stainless steels, Titanium, Hastelloy to handle the fluids including river water, chemical fluids or slightly abrasive liquids.

■ Optimized Axial Flow Path:

The propeller of the vertical axial flow pump leads the liquid axially upwards to the pump shaft, creating a straight through flow to the pump discharge nozzle. With the guide vane assembled behind the propeller, the turbulence in the pump column can be reduced a lot, meanwhile the hydraulic losses can be sharply minimized, this highly increases the pump efficienly and reduces the power consumption of such vertical pumps.

■ Easy Installation & Maintenance: 

Due to the vertical design, the installation of vertical axial flow pumps are much easier than horizontal models, as there is few requirements for complex base plate and concrete foundation.

■ Smooth & Reliable Operation: 

Thanks to the low speed design of vertical axial flow pumps, those vertical pumps are able to work smoothly while requiring few maintenances. 

■ The propeller and pump casing of the vertical axial flow pump are fully submerged in the liquid, while the pump discharge and motor are installed on the base plate. The weight of the pump set is born by the pump foundation, and the axial force can be either born by the pump or the thrust bearings of the electric motor.

■ There are two structural configurations of vertical axial flow pumps, single foundation and double foundation. The single foundation vertical axial flow pump requires only one foundation, while the double foundation type needs one foundation for the pump and another foundation for the motor. 

Structure drawing of vertical axial flow pumps:

1. Suction bell 2. External column (lower) 3. Impeller house 4. Impeller 5.Guide bearing (lower) 6.Diffuser casing 7.Internal column (lower)

8. Shaft (lower) 9. External column (middle) 10.Bearing bracket 11.Guide bearing (middle) 12.Internal column (upper) 13.Shaft (upper) 14.Supporting plate

15.Discharge elbow 16.Guide vane 17.External column (upper) 18.Guide bearing (upper) 19.Stuffing box 20.Motor support

The vertical axial flow pumps are designed for salt plants, seawater desalination plants and chemical plants where require the large flow rate and low discharge head. Those pumps can be customized with various materials including duplex stainless steels, Titanium or even higher grade materials to handle corrosive fluids like brines, acids, alkali. There are wear-resistant materials like high chrome alloy for fluids containing more particles or sands, making the vertical axial flow pumps ideal as the anti-abrasive pumping solutions.

The vertical axial flow pumps are also known as vertical line shaft pumps, due to the column length of those pumps are tailored made, so the configurations of those vertical pumps are always different.

Item		Factory standard	Optional configurations
Motor		Reputed China brands	ABB, Siemens, Nanyany, Jiamusi or designated brands
Bearing		Reputed China brand	SKF, NSF, FAG or designated brands
Mechanical seal		Zigong brand	Burgmann, Sihuan Riji, Chengdu Yitong
Flanges&counter flanges		China standard	European std, German std, American std, Japanese std
Couplings		Pin type	Flexible diaphragm coupling

■ Irrigation and Drainage: 

Large amout of water is needed for irrigation of farming, the vertical axial flow pumps are the ideal choice due to their features of large flow rate. And the flood control needs to evacuate large volume of water in a short period of time, which making those vertical pumps as the a good option.

■ Industrial Water Circulation: 

Due to the large flow rate capability, the vertical axial flow pumps plays an essential role in the cooling water circulation in many sections, including the power plants, chemical plants and metallurgy industries.

■ Municipal Water Supply:

Vertical axial pumps are the core part of municipal water supply system due to their features of large flow rate and less maintenance requirements.

■ Shipbuilding: 

The vertical axial flow pumps serve as the dry dock pumps in shipbuilding plants to evacuate the large a mount of water from the dock during the manufacturing and repairing process of ships.

■ Water Transfer Projects: 

The large-scale and long distance water transportation between lakes or river always requires the vertical axial flow pumps.