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Self-priming sewage pump

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  • product manual
  • Performance parameter

Model meaning


Product introduction

ZW series self-priming non-clogging sewage pump is a novel product successfully developed on the basis of repeated research on the technology of similar products at home and abroad. The pump integrates self-priming and non-clogging sewage and integrates axial drainage. And through the unique design of the pump body and the impeller flow channel, it can not need to install the bottom valve and irrigation water as ordinary self-priming clean water pumps, and can suck and dissolve large particles of solid and long fiber impurities. Widely used in municipal sewage projects, river pond breeding manure treatment, sedimentation of waste ore impurities, light industry, papermaking, food, chemical, pharmaceutical, electric power, propeller materials and mixtures and other chemical pumps.

Compared with similar domestic products, this pump has the characteristics of simple structure, good self-priming performance (self-priming height up to 5m), strong sewage capacity, high efficiency and energy saving, and convenient maintenance (completely replace WQ and QW submersible sewage pumps), etc. It is the first of its kind in the sewage pump series. The indicators are leading domestically and reach the international advanced level. Has broad application market development prospects.


Features

1. Adopting a double-blade impeller structure, which greatly improves the ability of dirt to pass through

2. The mechanical seal adopts a new type of grinding hob, and it will run in the oil chamber for a long time;

3. The overall structure is compact, small in size, low in noise, and has a significant energy saving effect, convenient maintenance and convenient for user replacement;

4. The automatic control cabinet can automatically control the over-motion and stop of the pump according to the required liquefaction changes. It does not require special supervision and is extremely convenient to use;

5. It can be equipped with installation methods according to user needs, which greatly facilitates installation and maintenance, and people can enter the sewage pit without doing this;

6, can be used within the design range, and ensure that the motor will not be overloaded;

7. If the pump is equipped with an outdoor motor, there is no need to build a pump room, which can be directly installed and used outdoors to save costs;


Product Usage

ZW series non-clogging sewage pumps are suitable for the discharge of severely polluted wastewater from factories, sewage drainage stations in main residential areas, water distribution systems in urban sewage treatment plants, drainage systems for civil air defense systems, water supply equipment for water plants, hospitals and hotels. , Municipal engineering construction sites, mining auxiliary equipment, rural biogas ponds, farmland irrigation and other industries, conveyor belt particles of sewage, dirt, can also be used in clean water and with weakly corrosive media.


Conditions of Use

1. Ambient temperature ≤50 ℃, medium temperature ≤80 ℃, special requirements up to 200 ℃

2. The PH value of the medium is 6-9 grade for cast iron and 2-13 for stainless steel.

3.The weight of the medium does not exceed 1240 kg / m3.

4. 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 diameter of suspended particles is 60% of the pump diameter, and the fiber length is 5 times of the pump diameter.


Structure and working principle

ZW series self-priming non-clogging sewage pump is mainly composed of pump body, impeller, back cover, mechanical seal, pump shaft, bearing seat, inlet valve, gas-liquid separation pipe, water adding valve, inlet and exhaust pipe. The structure of the pump is shown in the figure.

The working principle of the pump: a liquid storage chamber is provided in the pump body, and is communicated with the pump working chamber through the upper return hole and the lower circulation hole to form an axial flow-external mixing system for the pump. After the pump stops working, a certain volume of liquid has been stored in the pump cavity. When the pump is started, the liquid stored in the relevant authorities is thrown up by the air under the action of the impeller. The liquid returns to the working chamber through the grid of the gas-liquid separation tube. The degree of vacuum, to achieve the role of self-priming.


Schematic


1

Import takeover

9

impeller

2

Imported flange

10

Mechanical seal

3

Inlet valve seat

11

Water ring

4

Water valve

12

Bearing

5

Exit takeover

13

Pump shaft

6

Pump body

14

Bearing cap

7

Gas-liquid separation tube

15

Bottom cover

8

Back cover

16

bolt


model

flow

Head

Motor Power

Rotating speed

effectiveness

(NPSH) Required Erosion

(m3 / h)

(M)

(kw)

(r / min)

(%)

(M)

ZW25-8-15

8

15

2.2

2900

45

2

ZW32-10-20

10

20

2.2

2900

45

2.5

ZW40-20-15

20

15

2.2

2900

45

2.5

ZW40-15-30

15

30

3

2900

48

2.5

ZW50-10-20

10

20

2.2

2900

45

2.5

ZW50-20-15

20

15

2.2

2900

45

2.5

ZW50-18-22

18

twenty two

3

2900

48

2.5

ZW50-15-30

15

30

3

2900

48

2.5

ZW65-30-18

30

18

4

2900

45

2.5

ZW65-20-30

20

30

5.5

2900

45

2.5

ZW65-25-40

25

40

7.5

2900

50

3

ZW80-40-16

40

16

4

1450

50

3

ZW80-65-25

65

25

7.5

2900

50

3

ZW80-80-35

80

35

15

2900

45

3

ZW80-50-60

50

60

twenty two

2900

55

3

ZW80-80-45

80

45

twenty two

2900

55

3

model

flow

Head

Motor Power

Rotating speed

effectiveness

(NPSH) Required Erosion

(m3 / h)

(M)

(kw)

(r / min)

(%)

(M)

ZW100-80-20

80

20

7.5

1450

53

4

ZW100-100-15

100

15

7.5

1450

50

4

ZW100-100-20

100

20

11

1450

53

4

ZW100-100-30

100

30

twenty two

2900

53

4

ZW100-80-45

80

45

30

2900

55

4

ZW100-80-60

80

60

37

290

53

4

ZW100-80-80

80

80

45

2900

50

4

ZW125-120-20

120

20

15

1450

55

4.5

ZW150-200-15

200

15

15

1450

60

5

ZW150-200-20

200

20

twenty two

1450

60

5

ZW150-200-28

200

28

30

1450

65

5

ZW150-400-25

400

25

55

1450

45

5

ZW150-180-40

180

40

55

1450

65

5

ZW200-280-12

280

12

twenty two

1450

62

5

ZW200-300-18

300

18

37

1450

59

5

ZW200-300-25

300

25

45

1450

55

5

ZW200-280-28

280

28

55

1450

61

5

ZW250-400-22

400

twenty two

55

1450

65

5

ZW300-800-14

800

14

55

1450

61

5

400-027-6688 QQ: 1026140595
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