ZW Horizontal Self-priming clogging sewage pump | High Efficiency | It is suitable for conveying clear water and sewage
ZW Horizontal Self-priming clogging sewage pump | High Efficiency | It is suitable for conveying clear water and sewage
ZW Horizontal Self-priming clogging sewage pump | High Efficiency | It is suitable for conveying clear water and sewage
ZW Horizontal Self-priming clogging sewage pump | High Efficiency | It is suitable for conveying clear water and sewage
ZW Horizontal Self-priming clogging sewage pump | High Efficiency | It is suitable for conveying clear water and sewage
ZW Horizontal Self-priming clogging sewage pump | High Efficiency | It is suitable for conveying clear water and sewage
Model
ZW Self-priming Pump

Item specifics

Material
Cast iron, cast steel, stainless steel
Capacity
5-800m3/h
Max Head
12-60m
Colour
customizable

Review

Description

  • Product Introduction
  • Product Features
  • Scope of Application
  • Structural Drawings
  • Performance Parameters
  • Data Download

Product Introduction

The ZW type self-priming pump is a centrifugal pump with self-priming function, suitable for conveying clear water, sewage, oil and liquids containing solid particles. This pump features strong self-priming capacity, compact structure and stable operation. It is widely used in municipal engineering, sewage treatment, agricultural irrigation, industrial circulating water and other fields. Its temperature range is from -20℃ to 80℃.

Model Description:

Take ZW50-20-35 as an example:
- ZW: Self-priming pump type
- 50: Pump inlet diameter (mm)
- 20: Pump rated flow (m3/h)
- 35: Pump rated head (m)

Product Features:

  • Strong self-priming ability: The unique impeller design enables a self-priming height of up to 5 meters and a short self-priming time.
  • Compact structure: With a reasonable design, it occupies a small area and is easy to install.
  • High efficiency and energy saving: Advanced hydraulic models are adopted, ensuring high efficiency and low energy consumption.
  • Smooth operation: The impeller undergoes precise balance correction, resulting in low vibration and noise.
  • Easy maintenance: The pump shaft and motor are on the same axis, making disassembly and assembly convenient and reducing maintenance costs.
  • Reliable sealing: Mechanical seals or packing seals are used to ensure no leakage and reliable operation.

Scope of Application:

- Municipal engineering: for urban water supply, drainage and sewage treatment.
- Agricultural irrigation: for farmland irrigation and sprinkler systems.
- Industrial circulating water: for cooling systems, boiler feed water, condensate water transportation, etc.
- Sewage treatment: for transporting sewage containing solid particles, sludge, etc.
- Oil transportation: for transporting oil and oily liquids.

Structural Drawings:

Multi-stage pump structure diagram

Performance Parameters:

NO.
Model
Flow
Head
Motor
Power
Speed
Efficiency
(NPSH)r
Suction
Head
Suction
Time
Weight
ZW
m3/h
m
kW
rpm
%
m
m
min/5m
kg
1
25-8-15
8
15
2.2
2950
45
2.0
5.5
3
100
2
32-9-30
9
30
3
2950
48
2.5
5.5
3
100
3
40-15-30
15
30
3
2950
48
2.5
5.5
3
100
4
50-20-35
20
35
5.5
2950
48
2.5
5.5
3
150
5
65-25-40
25
40
7.5
2950
50
3.0
5.5
3
200
6
80-40-25
40
25
7.5
1450
50
3.0
5.5
2
200
7
80-65-25
65
25
11
2950
52
3.0
5.5
2
240
8
80-80-35
80
35
15
2950
45
3.0
5.5
3
285
9
100-100-15
100
15
7.5
1450
50
4.0
5.5
50
300
10
100-100-30
100
30
22
1450
53
4.0
5.5
2
510
11
150-180-20
180
20
22
1450
60
5.0
5.0
3
570
12
150-180-38
180
38
55
1450
45
5.0
6.0
3.5
800
13
200-280-14
280
14
22
1450
65
5.0
5.0
3
700
14
200-280-28
280
28
55
1450
55
4.8
5.2
3
940
15
250-420-20
420
20
55
1450
61
6.0
4.5
2.5
1150
16
300-800-14
800
14
55
1450
65
6.0
4.5
2.5
1400
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*For more models, please download our catalogue or contact us.

Data Download:

Download Multi-stage pumps PDF brochure

ZW-type Self-priming Pump

Download Product PDF Brochure