Correct selection method of magnetic pump

First, the performance parameters of the magnetic pump

Magnetic pump performance parameter range

Pump type

flow

m ³ / h

Head

m

temperature

°C

Motor Power

KW

Remarks

Metal magnetic

Force pump

0.2~200

1.2~125

-20~110

≤ 75

Straight particles in the medium

The diameter should be < 0.2mm

Non-metal

magnetic pump

0 . 2~30

0 . 2~40

<80

≤ 7.5

 

 

Second, the selection steps

Based on the current status of domestic magnetic pump production and the development of magnetic materials and sliding bearings, in order to ensure the quality of the project, the following steps can be taken when selecting a magnetic pump.

1. For pumps with power less than 10KW , use a magnetic pump to ensure the effect.

2. When the shaft power of the pump is greater than 10KW or the medium temperature is higher than 100 °C, the domestic magnetic pump should be carefully handled when it is used. The material of the magnetic steel and the structure of the bearing material should be limited. If necessary, the shield pump should be used.

3. At present, domestic magnetic pump manufacturers are generally small and medium-sized factories, and the development and research methods are relatively weak. For pumps that exceed the product parameters, it is generally not advisable to entrust the production plant to develop or develop to ensure the quality and progress of the project. The main domestic magnetic pump manufacturers and their products are shown in Table 1-1.

4. The quality of the magnetic steel material is related to the life, reliability and price of the pump. The magnetic steel material, the supplier and its performance indicators should be specified when ordering. The material and life of the sliding bearing should also be clarified.

Manufacturing plant

model

Overcurrent

Material

Main magnetic

Steel material

flow

m ³ / h

Head

m

temperature

°C

Motor Power

KW

Remarks

Yangtze River Pump Industry

 

Type C

 

metal

Samarium cobalt,

NdFeB

 

≤200

 

≤125

 

≤110

 

≤75

Exceeding the list

When parameters

Specific agreement

Business solution

Line design

Yangtze River Pump Industry

 

CF type

metal

Ferrite,

Rare earth cobalt

≤120

≤125

≤80

≤75

Yangtze River Pump Industry

 

CQ ,

MA ,

Type CB

Enhanced poly

Propylene

Ferrite

0.2~12.5

1.2~32

≤80

≤2.2

Currently mainly

Production 10

Below KW

Pump

 

metal

Ferrite

Rare earth cobalt

 

3.2~50

 

8~80

 

 

≤37

Yangtze River Pump Industry

CQB type

metal

Ferrite

Rare earth cobalt

3.2~100

8~80

≤110

≤55

Exceeding the list

When parameters

Specific agreement

Business solution

Line design

Taicang, Jiangsu

Magnetic drive

Pump factory

IM

CSB type

preservative

metal

Enhanced poly

Trifluoroethylene

 

 

Rare earth cobalt

 

 

2~220

1~30

 

 

4~25

3~25

 

 

≤110

≤50

 

 

≤55

≤3

Zhuzhou Plastic

Second plant

Type CB

Glass fiber reinforced

Polypropylene

Ferrite

NdFeB

 

≤40

 

≤35

 

0~80

≤7.5

 

Shenyang Worker

Industry pump factory

CMPH

metal

Rare earth cobalt

0.5~7.8

15~82

≤110

 

≤7.5

Small flow

Pump

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