Installation precautions and selection data for self priming centrifugal oil pumps

【1】 1. Installation precautions for self suction centrifugal pump: Before installing the self suction centrifugal pump, carefully check whether the bolts of the pump are loose and whether there are any foreign objects falling into the pump body to avoid damaging the impeller during operation

2. Place the self suction centrifugal pump on the concrete foundation, place an isolation pad between the bottom plate and the foundation, and adjust the height of the isolation pad to align the pump's level. After adjustment, tighten the bolts

3. Before installing the self suction centrifugal pump, a suitable concrete foundation should be made according to the foundation size of the self suction centrifugal pump, and the anchor bolts should also be pre embedded during the process of making the concrete foundation. Making concrete foundation refers to large self suction centrifugal pump products, while small self suction centrifugal pumps do not require making concrete foundation

4. When encountering dust covers at the inlet and outlet of the self suction centrifugal pump, the dust cover should be removed and connected to the pipeline. It should be noted that if using a self suction centrifugal pump product with fast water suction, the outlet pipeline can only be turned vertically up 1 meter, otherwise the water inside the pump body is easily discharged during the self suction process

5. For the convenience of maintenance and use, a regulating valve should be installed on the inlet and outlet pipelines of the self suction centrifugal pump, and a pressure gauge should also be installed between the outlet valve and the pump to ensure that the self suction centrifugal pump can operate normally and extend its service life within the rated flow and head range

6. Before starting the self suction centrifugal pump, the pump shaft should be moved and liquid should be filled into the pump chamber to achieve the purpose of exhaust. The pump should be checked for any leakage, and the impeller should not have any friction or jamming. If there is any friction or jamming, the pump should be disassembled and the specific cause should be checked and the problem should be solved

7. The suction and discharge pipelines of a self suction centrifugal pump cannot be supported by a water pump, but require separate brackets to support the inlet and outlet pipelines. The diameter of the inlet and outlet pipelines should match the diameter of the self suction centrifugal pump, especially the pipeline cannot be enlarged, which will affect the self suction height of the self suction centrifugal pump. If the pipeline of the self suction centrifugal pump is reduced during installation, the outlet pipeline should also be reduced. We suggest configuring the corresponding pipeline according to the factory standard diameter reasonably

[2] What basic data should be understood when selecting a self suction centrifugal pump

Self suction centrifugal pump selection data

1. The importance of basic data for self suction centrifugal pump selection

A key step before purchasing a self suction centrifugal pump is to have a clear understanding of the basic data for self suction centrifugal pump selection. Only after understanding the relevant basic data can a self suction centrifugal pump product that meets the operating requirements be selected.

2. Basic data for selection of self suction centrifugal pumps:

1. Basic data for selection: First, understand the specific medium of the liquid being transported.

. The name of the main liquid, the main characteristics of the liquid (such as whether the liquid is corrosive, restorative, flammable and explosive, toxic, etc.), the specific temperature of the liquid, the proportion of particles and the specific particle diameter, the density of the medium, the viscosity of the medium, etc

2. Then determine the performance parameters of the self suction centrifugal pump. Firstly, it is necessary to understand the flow rate required by the user, and then it is necessary to understand the specific length and height of the pipeline of the self suction centrifugal pump, which is used in which region. It is convenient to consult atmospheric pressure to calculate whether the suction head of the self suction centrifugal pump can meet the working conditions and the layout of the pipeline of the outlet system of the self suction centrifugal pump; What is the specific vertical height, horizontal distance in meters, pipe diameter, number of elbows, number of valves, the purpose of self suction centrifugal pump pumping and conveying water, and whether pressure is required at the end, etc., so that the manufacturer can choose a suitable head of self suction centrifugal pump products for you and understand the operation mode of the device (intermittent or continuous operation)

3. Other operating conditions that should be understood when selecting a self suction centrifugal pump. When selecting a self priming centrifugal pump, consideration should also be given to the limitations of the operating conditions, budget costs, installation location of the self priming centrifugal pump, (such as transporting flammable and explosive liquids or requiring a motor in the environment), and whether environmental pollution requires the self priming centrifugal pump to achieve leak free function. For example, vertical leak free self priming centrifugal pumps