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Zhejiang Yangtze River Pump Industry Co., Ltd

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    wt50120@126.com

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    13868628633

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    Dongou Industrial Zone, Oubei Town, Yongjia County, Zhejiang Province

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ZWL stainless steel explosion-proof direct connection self-priming sewage pump structure diagram for high flow sewage self-priming pump
Date: 2018-03-10Read: 55

ZWL direct connection self-priming sewage pump is a novel product developed by our company based on the research of the structure and performance of ZW type self-priming non clogging sewage pump and similar technologies at home and abroad. The pump integrates self-priming and non clogging sewage, adopts axial reflux external mixing, and through the design of the pump body and impeller flow channel, it can be used as a general self-priming clean water pump without the need for bottom valves and irrigation water, and can also suck and discharge impurity liquids containing large solid particles and long fibers. It can be widely used in municipal sewage engineering, river pond aquaculture, light industry, papermaking, textile, food, chemical industry, electrical industry, fiber, pulp and mixed suspension and other chemical media impurity pumps. Compared with similar domestic products, this pump adopts a direct connection structure, which has the characteristics of simple and compact structure, less vibration, good self-priming performance, strong sewage discharge capacity, energy saving, and easy use and maintenance. It is the most innovative product in the sewage pump series. All technical performance indicators are at the domestic level and have broad application markets and development prospects.

Compared with similar domestic products, ZWL direct coupled self-priming sewage pump has the characteristics of simple structure, good self-priming performance, strong sewage discharge capacity, energy saving, and easy use and maintenance. It is the top product in the sewage pump series in China. All technical performance indicators are at the domestic level and have broad application markets and development prospects.
1. The environmental humidity is 50 ℃, and the medium temperature is required to reach 200 ℃.
2. The pH value of the medium is 6-9 for cast iron and 2-13 for stainless steel.
3. The medium density shall not exceed 1240 kg/m3.
4. The self-priming height cannot exceed the specified value of 4.5-5.5 meters, and the length of the suction pipe is 10 meters.
5. The suspended particle diameter is 60% of the pump diameter and the fiber length is 5 times the pump diameter.

Structural characteristics of ZWL direct connected self-priming sewage pump

1Electric motor: directly connected to the water pump to transmit power, using an electric motor.

2Pump shaft: coaxial with the motor. Extending the shaft of the motor ensures the concentricity of the shaft, allowing the pump to run smoothly without noise or vibration. Chrome plating is used to enhance its service life.

3Water blocking ring: prevents water from entering the motor due to sealing leakage.

4Mechanical seal: made of materials such as stainless steel, tungsten carbide, fluororubber, etc. Balanced high-temperature and high-pressure mechanical seal, with long operating life, no leakage, no wear on the shaft, no accumulation of water and dirt, ensuring a clean working environment.

5Pump cover: Connect the pump body and motor.

6Pump body: The extrusion chamber, suction chamber, and gas-liquid separation chamber are designed using hydraulic models, which are both aesthetically pleasing and equipped with mounting feet for easy installation and stable operation.

7Impeller: Designed using a hydraulic model, it has the characteristics of high efficiency and good reliability.

8Sealing ring: The joint between the water pump impeller and the pump body plays a sealing role.

9Bottom cover plate: When there is scale accumulation in the pump body, the bottom cover plate can be opened to remove the dirt.

10Drain plug: When the pump is not in use, the drain plug can be opened to drain the stored liquid.

11Chassis: Connect the entire pump for easy installation and can also be equipped with vibration isolators.

12Export connection: Connect the outlet pipe

13Water valve: When the liquid storage in the pump chamber is insufficient, the valve can be opened to add water.

14Check valve disc: can prevent water from flowing back in the pipeline when the pump stops working

15Import connection: Connect the import pipeline.

ZWLPerformance parameters of direct connected self-priming sewage pump

Self priming pump model

flow

Head (m)

Power (kw)

Speed (r/min)

Efficiency (%)

Cavitation allowance (m)

Self suction height (m)

Self suction time (min/5m)

weight

ZWL25-8-15self-priming pump

8

15

1.5

2900

45

2.0

5.0

3

68

ZWL32-10-20self-priming pump

10

20

2.2

2900

45

2.5

5.0

3

68

ZWL32-9-30self-priming pump

9

30

3

2900

48

2.5

5.0

3

95

ZWL40-10-20self-priming pump

10

20

2.2

2900

45

2.5

5.0

3

68

ZWL40-20-15self-priming pump

20

15

2.2

2900

45

2.5

5.0

3

68

ZWL40-15-30self-priming pump

15

30

3

2900

48

2.5

5.0

3

95

ZWL50-10-20self-priming pump

10

20

2.2

2900

45

2.5

5.0

3

68

ZWL50-20-15self-priming pump

20

15

2.2

2900

45

2.5

5.0

3

68

ZWL50-15-30 self-priming pump

15

30

3

2900

48

2.5

5.0

3

95

ZWL50-20-35self-priming pump

20

35

5.5

2900

48

2.5

5.5

3

140

ZWL50-20-40self-priming pump

20

40

7.5

2900

48

2.5

5.5

3

150

ZWL65-30-18self-priming pump

30

18

4

2900

45

2.5

5.0

3

125

ZWL65-25-30self-priming pump

25

30

5.5

2900

50

3.0

5.0

3

135

ZWL65-25-40self-priming pump

25

40

7.5

2900

50

3.0

5.5

2

140

ZWL65-40-25self-priming pump

40

25

7.5

2900

50

3.0

5.0

3

150

ZWL65-65-25self-priming pump

65

25

11

2900

Qi 7

3.0

5.0

3

200

ZWL80-40-16self-priming pump

40

16

4

2900

50

3.0

5.0

3

125

ZWL80-40-25self-priming pump

40

25

7.5

2900

50

3.0

5.0

3

140

ZWL80-2540self-priming pump

55

40

7.5

2900

50

3.0

5.0

2

150

ZWL80-65-25self-priming pump

65

25

11

2900

52

3.0

5.0

3

220

ZWL80-80-35self-priming pump

80

35

15

2900

45

3.0

5.5

3

250

ZWL80-50-60self-priming pump

50

60

22

2900

55

3.0

5.5

3

300

ZWL100-100-15self-priming pump

100

15

7.5

1450

50

4.0

5.0

3

230

ZWL100-80-20self-priming pump

80

20

7.5

1450

53

4.0

5.0

3

230

ZWL100-100-20self-priming pump

100

20

11

1450

53

4.0

5.0

3

270

ZWL100-100-30self-priming pump

100

30

22

1450

53

4.0

5.0

2

320

ZWL100-80-45self-priming pump

80

45

30

2900

53

4.0

5.5

2

380

ZWL100-80-60self-priming pump

80

60

37

2900

53

4.0

5.5

2

430

ZWL100-80-80self-priming pump

80

80

45

2900

53

4.0

5.5

2

480

ZWL125-120-20self-priming pump

120

20

15

1450

55

4.5

5.0

2

380

ZWL150-200-15self-priming pump

200

15

15

1450

60

5.0

5.0

3.5

380

ZWL150-200-20self-priming pump

200

20

22

1450

60

5.0

5.0

3

420

ZWL150-200-25self-priming pump

200

25

30

1450

60

5.0

5.0

3

520

ZWL150-180-30self-priming pump

180

30

37

1450

65

5.0

5.0

3

580

ZWL150-180-38self-priming pump

180

38

55

1450

45

5.0

5.0

3.5

700

ZWL200-280-14self-priming pump

280

14

22

1450

65

5.0

5.0

3

600

ZWL200-300.18self-priming pump

300

18

37

1450

65

5.0

5.0

3

680

ZWL200-280-28self-priming pump

280

28

55

1450

55

4.8

5.2

3

820

ZWL250-420-20self-priming pump

420

20

55

1450

61

6.0

4.5

2.5

1020

ZWL300-800-14self-priming pump

800

14

55

1450

65

6.0

4.5

2.5

1200

Scope of application:
Compared with similar domestic products, ZWL type direct connection self-priming sewage pump has the characteristics of simple structure, good self-priming performance, strong sewage discharge capacity, energy saving, and easy use and maintenance. It is the top product in the sewage pump series in China. All technical performance indicators are at the domestic level and have broad application markets and development prospects.