WZ Series Marine Multistage Self-priming Vortex Pump

Overview

WZ Series is suitable for conveying at a temperature of -20℃ ~+80 ℃, viscosity of not more than 5oE without solid particles, volatile, easy gasification of seawater and freshwater. Can be used for ship, petroleum, chemical industry, printing and dyeing industry, hotels, villas and high-rise living water for boiler. This type pump has the advantages of small volume, light weight, strong self-absorption, can be equipped with motor, gasoline engine, diesel engine as power.

Advantages and Disadvantages of Vortex Pumps

Advantages of Vortex Pumps

1. Vortex pumps are widely used on ships for sea and canal transportation. The small size and light weight of the vortex pump are extremely advantageous.

2. The vortex pump has the self-priming ability, and can also realize the self-priming function with the help of a simple device.

3. The rate of change of the flow head curve of the vortex pump is relatively large, so the vortex pump is not sensitive to pressure fluctuations in the system.

4. Some vortex pumps can realize vapor-liquid mixed transportation. This is of great significance for pumping volatile liquids containing gas and high-temperature liquids with high vaporization pressure.

5. The temperature of the conveying medium of the vortex pump should be controlled within a certain range and cannot exceed 60 °C.

Disadvantages of Vortex Pumps

1. Due to the small size and simple structure of the vortex pump, this also causes the efficiency of the vortex pump to be low. The efficiency of the vortex pump is generally between 20-40%.

2. The cavitation performance of the vortex pump is poor.

3. The vortex pump cannot be used to pump viscous medium. During the working process of the vortex pump, the head and efficiency of the vortex pump will decrease sharply with the increase of the viscosity of the liquid.

Model Explanation 32WZ-18×3

32—Inlet and outlet diameter 32 mm 

W— Vortex pump

Z— Self-priming

18—Single grade Head 18m

3— Series for the three

Structural Specifications 

The excellent design of our company's engineers, components made of high-quality materials can extend the life of the pump, reduce the frequency of maintenance, operation stability in complex environments, but it  also cause different prices. If you need more details about this, you can click on the news or send an email to ask us

Performance Parameter

(The following are only the partial parameters.In addition, please provide the parameter of the marine pump you need and we can customize the suitable type for you.)

Precautions for use

1. The maximum working pressure of the pump and the connected pipeline is ≤1.6MPa, and the pressure at the suction port of the pump + the pump head is ≤1.6Mpa. (If the working pressure of the pump system is greater than 1.6MPa, it should be put forward separately when ordering, so that we can use cast steel for the over-current parts and connecting parts of the pump during manufacture).

2. The ambient temperature does not exceed 50°C, the altitude does not exceed 1000 meters, and the relative humidity does not exceed 95%.

3. The conveying medium is clear water or other liquids with similar physical and chemical properties to clear water. (The conveying medium contains fine particles, which should be specified separately when ordering, so that we can assemble the wear-resistant mechanical seal.)

4. Before installing the pump, carefully check whether there are hard objects (such as stones, iron particles, etc.) in the pump flow channel that affect the operation of the pump, so as to avoid damage to the impeller and pump body when the pump is running.

5. The weight of the pipeline should not be added to the pump during installation, and there should be their own support bodies to avoid the deformation of the pump and affect the running performance and life.

6. The anchor bolts must be tightened during installation to avoid the impact of vibration on the pump performance during startup.

7. For the convenience of maintenance and safe use, a regulating valve is installed on the inlet and outlet pipelines of the pump and a pressure gauge is installed near the pump outlet to ensure the operation within the rated head and flow range, to ensure the normal operation of the pump and the growth of the pump. service life of the pump.

8. After installation, turn the pump shaft, the impeller should have no friction noise or stuck phenomenon, otherwise the pump should be disassembled to check the cause.