Vertical axial/mixed flow chemical pump

■ Flow rate: Q=300～8000 （m³/h）

■ Total head: H= 1～300 (m)

■ Speed: n=180-1450rpm

■ Fluid temperature: T= 0～50℃

■ Fluid s.g.: γ≤1.4

• Optimized elbow passage of better hydraulic performance.

• Adjustable impeller of high efficiency and wide high efficiency zone.

• Slowly pump speed design conforms to the technological requirements of salting out and low temperature crystallization.

• Vertical axial flow pumps are widely used in saltworks, obtaining salt by evaporating brine, composite alkali process, etc. Selecting corrosion-resistant materials and high-strength shafts to ensure smooth operation and long service life of vertical axial flow pumps. The diameter of suction bowl of the vertical axial flow pump is from 225mm to 3100mm, so it has a wide range of applications.

• Specially designed to suit different applications. With the help of our professional engineers, special design could be carried out to increase the head, increase the guide vane body, and realize the function of a vertical mixed-flow pump; Wear resistant coating is added to the impeller  for the medium containing corrosive and hard particles, so that the service life of the vertical pump is greatly extended. Increasing the system pressure and liquid level can achieve the purpose of forced circulation.

■ The impeller of the vertical axial flow pump is immersed in fluid, the pump and the motor are installed on different structural layers, the pump body is installed on the basis of the pump layer, the weight of the pump body is bear by the pump foundation, and all the axial force of the lifting fluid is bear by the axial thrust bearing in the transmission device.

■ It could also add the connection structure between the pump outlet pipe and the motor base according to the site conditions. Relying on the mechanical positioning between the structures ensures the concentric motor shaft and pump shaft, and realize that the motor base bears all the self-weight load and axial force. During installation and maintenance, the pump can be lifted out and lowered from the mounting hole on the motor floor of the pump house, and installation and disassembly are completed on the motor floor without entering the pool below the pump house.

Structure drawing is as below:

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

Vertical axial flow pumps are used for large flow, low head occasions, for salt works, alkali-making, obtaining salt by evaporating seawater etc., choose stainless steel, SS304, SS316, SS316L, duplex stainless steel, CD4MCu, 2205, 2507, 904L, and other corrosion resistant materials. For the medium containing particles, sand or other hard impurities, choose wear-resistant materials, wear-resistant cast iron, carbon steel and other materials.

• ZLH series is suitable for applications of big flow with low total head. The cast iron vertical axial flow pump is used for agricultural drainage and irrigation, urban water supply, drainage, thermal power station water transmission.

• ZLH series is able to pump clean water, sewage water with small particles and chemical process fluids with small particles.

• ZLH series is especially suitable for salting out and low temperature crystallization of combined soda process. 

• Salt works, phosphoric acid, obtaining salt by evaporating seawater and other chemical industries