Product Overview
ZX/ZXL Clean Water Self-Priming Centrifugal Pump is a centrifugal pump designed for clean water and lightly contaminated liquid transfer, featuring a self-priming function that ensures quick operation.
It addresses the need for easy installation and operation in systems requiring stable flow even under fluctuating conditions or when the pump starts and stops frequently.
Ideal for use in municipal water systems, agricultural applications, and various industrial processes where clean or lightly contaminated water must be transferred.
Model Designation
Key
Applications
• Municipal water systems
• Agricultural water pumping for irrigation and spraying
• Chemical, pharmaceutical, and textile industries for clean fluid transfer
• Seawater and freshwater transfer
• Filtration applications in industrial and environmental systems
Engineering Advantages
• Self-priming capability eliminates the need for a foot valve, simplifying the installation and operation of the system.
• Stable performance with smooth operation and minimal vibration or noise, ensuring reliability in continuous operation.
• Compact and service-ready design allows for easy maintenance access and space-saving installation.
• Durable construction with corrosion-resistant materials ensures long-lasting operation even in harsh environments.
System Components
The ZX/ZXL Clean Water Self-Priming Centrifugal Pump consists of the following main components:
• Pump casing
• Impeller
• Gas-liquid separation chamber
• Suction chamber
• Recirculation chamber
• Seals and bearings
Technical Parameters
Service Conditions
• Fluid Type: Clean water, seawater, slightly contaminated fluids
• Operating Temperature: ≤ 60°C
Operating Conditions
- Flow Rate: 3.2 – 600 m³/h
- Head: 12 – 80 m
- Power Range: 0.75 – 132 kW
- Speed: 1450 rpm
- Liquid Temperature: ≤ 60°C
- Working Pressure: ≤ 1.0 MPa
Detailed parameter tables are provided below.
Specifications & Installation
Outline Drawing
Performance Data
|
1
|
Coupling
|
2
|
Pump Shaft
|
3
|
Bearing
|
4
|
Mechanical Seal
|
5
|
Bearing Housing
|
6
|
Pump Casing
|
7
|
Discharge Port
|
|
8
|
Inlet Port
|
9
|
Front Seal Ring
|
10
|
Impeller
|
11
|
Rear Cover
|
12
|
Water Baffle
|
13
|
Liquid Filling Hole
|
14
|
Liquid Return Hole
|
Performance Parameters
|
Model
|
Imported Pumps
|
In the Pump Industry
|
Suction Lift
|
Motor
|
Flow Rate (m³/h)
|
Head (m)
|
|
(mm)
|
(mm)
|
(m)
|
(KW)
|
(L/min)
|
(m)
|
|
|
25ZX3.2-20
|
25
|
25
|
6.5
|
0.75
|
3.2
|
20
|
|
25ZX3.2-32
|
25
|
25
|
6.5
|
1.1
|
3.2
|
32
|
|
40ZX6.3-20
|
40
|
32
|
6.5
|
1.1
|
6.3
|
20
|
|
40ZX10-40
|
40
|
40
|
6.5
|
4
|
10
|
40
|
|
50ZX15-12
|
50
|
50
|
6.5
|
1.5
|
15
|
12
|
|
50ZX18-20
|
50
|
50
|
6.5
|
2.2
|
18
|
20
|
|
50ZX12.5-32
|
50
|
50
|
6.5
|
3
|
12.5
|
32
|
|
50ZX20-30
|
50
|
50
|
6.5
|
4
|
20
|
30
|
|
50ZX14-35
|
50
|
50
|
6.5
|
4
|
14
|
35
|
|
50ZX10-40
|
50
|
50
|
6.5
|
4
|
10
|
40
|
|
50ZX12.5-50
|
50
|
50
|
6.5
|
5.5
|
12.5
|
50
|
|
50ZX15-60
|
50
|
50
|
6.5
|
7.5
|
15
|
60
|
|
50ZX20-75
|
50
|
50
|
6.5
|
11
|
20
|
75
|
|
Model
|
Imported Pumps
|
In the Pump Industry
|
Suction Lift
|
Motor
|
Flow Rate (m³/h)
|
Head (m)
|
|
(mm)
|
(mm)
|
(m)
|
(KW)
|
(L/min)
|
(m)
|
|
|
65ZX30-15
|
65
|
50
|
6.5
|
3
|
30
|
15
|
|
65ZX25-32
|
65
|
50
|
6
|
5.5
|
25
|
32
|
|
80ZX35-13
|
80
|
80
|
6
|
2.2
|
35
|
13
|
|
80ZX43-17
|
80
|
80
|
6
|
4
|
43
|
17
|
|
80ZX40-22
|
80
|
80
|
6
|
5.5
|
40
|
22
|
|
80ZX50-25
|
80
|
80
|
6
|
7.5
|
50
|
25
|
|
80ZX50-32
|
80
|
80
|
6
|
7.5
|
50
|
32
|
|
80ZX60-55
|
80
|
80
|
6
|
18.5
|
60
|
55
|
|
80ZX60-70
|
80
|
80
|
6
|
22
|
60
|
70
|
|
100ZX100-20
|
100
|
80
|
6
|
11
|
100
|
20
|
|
100ZX100-40
|
100
|
100
|
6
|
18.5
|
100
|
40
|
|
100ZX100-65
|
100
|
100
|
6
|
30
|
100
|
65
|
|
100ZX70-75
|
100
|
100
|
6
|
30
|
70
|
75
|
|
Model
|
Imported Pumps
|
In the Pump Industry
|
Suction Lift
|
Motor
|
Flow Rate (m³/h)
|
Head (m)
|
|
(mm)
|
(mm)
|
(m)
|
(KW)
|
(L/min)
|
(m)
|
|
|
150ZX170-55
|
150
|
150
|
5
|
45
|
170
|
55
|
|
150ZX170-65
|
150
|
150
|
5
|
55
|
170
|
65
|
|
150ZX160-80
|
150
|
150
|
5
|
55
|
160
|
80
|
|
200ZX400-32
|
200
|
200
|
5
|
55
|
400
|
32
|
|
200ZX280-63
|
200
|
200
|
5
|
90
|
280
|
63
|
|
200ZX350-65
|
200
|
200
|
5
|
110
|
350
|
65
|
|
250ZX550-32
|
250
|
250
|
5
|
75
|
550
|
32
|
|
250ZX400-50
|
250
|
250
|
5
|
90
|
400
|
50
|
|
250ZX450-55
|
250
|
250
|
5
|
110
|
450
|
55
|
|
250ZX400-75
|
250
|
250
|
5
|
132
|
400
|
75
|
|
300ZX600-32
|
300
|
300
|
5
|
90
|
600
|
32
|
|
300ZX500-50
|
300
|
300
|
5
|
110
|
500
|
50
|
|
300ZX550-55
|
300
|
300
|
5
|
132
|
550
|
55
|
How to Select a Pump Model
• Determine required flow rate based on the volume of water to be transferred.
• Select the pump head based on system pressure and elevation.
• Ensure compatibility with the type of liquid being transferred (e.g., clean water, seawater).
• Consider the operating environment (ambient temperature, humidity) when choosing the appropriate pump model.
Engineering Notes
• Ensure proper priming of the pump before starting to avoid dry running.
• Monitor suction pressure to prevent cavitation and pump damage.
• Inspect seals regularly for wear and replace as needed to prevent leakage.
• Maintain consistent fluid levels in the pump casing for reliable self-priming performance.
Compliance & Quality Assurance
• Factory testing to ensure optimal performance under designed operating conditions.
• Material traceability for all wetted components to ensure quality standards.
• Hydraulic performance testing to confirm efficiency and stability.
• Third-party inspections available upon request for additional validation.
Safety Notice
• Do not operate under dry running conditions to avoid damaging the mechanical seals.
• Ensure proper filtration to avoid clogging and damage to the pump.
• Disconnect power before performing any maintenance or servicing.
• Monitor the temperature of bearings and seals during operation to avoid overheating.
OEM & Customization
This pump series supports engineered configuration and duty-based matching.
Available options include:
• Motor voltage & frequency
• Mechanical seal type and configuration
• Wetted parts material selection
• Surface coating and corrosion protection
FAQs
Q: What is the maximum allowable viscosity for the pump?
A: The maximum allowable viscosity is 100 cP.
Q: Can this pump operate under variable flow conditions?
A: Yes, the pump is designed to operate under varying flow and pressure conditions.
Q: What materials are used for the wetted components?
A: The wetted components are made from cast iron or stainless steel, ensuring durability and corrosion resistance.
Q: How often should the pump be maintained?
A: It is recommended to inspect and maintain the pump every 6 months for optimal performance.
Q: What is the maximum working pressure of the pump?
A: The maximum working pressure is 1.0 MPa.