What liquids can the ZX / ZXL pump handle?

The pump is mainly designed for clean water or liquids with similar physical properties without large solid particles.

Does the pump need a bottom valve?

No. After initial filling, the pump has self-priming capability and does not require a bottom valve.

What is the maximum medium temperature?

Generally 0–80°C for clean water applications. Please contact us for higher temperature options.

Can it be used for agricultural irrigation?

Yes. It is widely used for farmland irrigation, garden watering and small-scale water transfer.

Is installation complicated?

No. With compact structure, the pump is easy to install and requires simple pipeline layout.

What is the normal delivery time?

Usually 7–15 days depending on order quantity and customization requirements.

Are spare parts available?

Yes. We provide impellers, mechanical seals, seal rings and bearings for long-term maintenance support.

ZX/ZXL Clean Water Self-Priming Centrifugal Pump High Flow Low Noise China Factory | Shanghai Chaodun Group

Name: ZXL Clean Water Self-Priming Centrifugal Pump
Brand: Shanghai Chaodun Group

Product Overview

X / ZXL Clean Water Self-Priming Centrifugal Pump is a single-stage self-priming centrifugal pump designed for clean water and low-viscosity fluid transfer where suction lift is required.

It resolves suction-side priming difficulties, eliminates the need for foot valves in certain installations, and ensures reliable restart after intermittent operation.

It is applied in irrigation systems, industrial water transfer, municipal drainage, and temporary pumping stations where suction lift and easy installation are required.

✔ For installations requiring reliable suction lift without complex priming systems, this self-priming centrifugal pump provides stable hydraulic performance and simplified piping configuration

Model Designation

ZXL Clean Water Self-Priming Centrifugal Pump

Applications

Typical Operating Scenarios

• Irrigation systems with negative suction head and above-ground pump installation

• Industrial cooling water circulation where intermittent restart is required

• Municipal drainage pits with limited priming accessibility

• Temporary water transfer stations without foot valve configuration

• Construction site water removal with short-distance suction lift

Engineering Advantages

Structural Logic & Engineering Outcome

• Enlarged self-priming chamber design ensures rapid air-water separation and stable suction lift performance

• Single-stage radial impeller optimized for clean water hydraulic efficiency

• Compact horizontal structure simplifies installation and maintenance

• Mechanical seal configuration reduces leakage risk under frequent start-stop conditions

✔ Engineered for clean-water self-priming applications requiring stable suction performance and simplified installation under non-submerged suction conditions.

System Components

X / ZXL Clean Water Self-Priming Centrifugal Pump：

• Pump casing with self-priming chamber
• Radial impeller
• Pump shaft
• Mechanical seal assembly
• Bearing housing
• Coupling
• Electric motor

Technical Data

Service Conditions

• Clean water or similar low-viscosity fluids

• No solid particles or minimal suspended impurities

Operating Conditions

Flow: 3.2 – 600 m³/h
• Head: 12 – 80 m
• Power: 0.75 – 132 kW
• Suction Lift: 5 – 6.5 m (per outlet diameter)

Detailed parameter tables are provided below.

Installation & Dimensions

Outline Drawing

ZXL Clean Water Self-Priming Centrifugal Pump Structure Diagram

Performance Data

1	Coupling	2	Pump Shaft	3	Bearing	4	Mechanical Seal	5	Bearing Housing	6	Pump Casing	7	Discharge Base
8	Suction Base	9	Front Seal Ring	10	Impeller	11	Rear Cover	12	Water Deflector Ring	13	Filling Port	14	Return Port

Performance Parameters

Model	Inlet	Outlet	Suction Lift	Motor Power	Flow Rate	Head
Model	(mm)	(mm)	(m)	(kW)	(m3/h)	(m)
25ZXL3.2-20	25	25	6.5	0.75	3.2	20
25ZXL3.2-32	25	25	6.5	1.1	3.2	32
40ZXL6.3-20	40	32	6.5	1.1	6.3	20
40ZXL10-40	40	40	6.5	4	10	40
50ZXL15-12	50	50	6.5	1.5	15	12
50ZXL18-20	50	50	6.5	2.2	18	20
50ZXL12.5-32	50	50	6.5	3	12.5	32
50ZXL20-30	50	50	6.5	4	20	30
50ZXL14-35	50	50	6.5	4	14	35
50ZXL10-40	50	50	6.5	4	10	40
50ZXL12.5-50	50	50	6.5	5.5	12.5	50
50ZXL15-60	50	50	6.5	7.5	15	60
50ZXL20-75	50	50	6.5	11	20	75
Model	Inlet	Outlet	Suction Lift	Motor Power	Flow Rate	Head
Model	(mm)	(mm)	(m)	(kW)	(m3/h)	(m)
65ZXL30-15	65	50	6.5	3	30	15
65ZXL25-32	65	50	6	5.5	25	32
80ZXL35-13	80	80	6	2.2	35	13
80ZXL43-17	80	80	6	4	43	17
80ZXL40-22	80	80	6	5.5	40	22
80ZXL50-25	80	80	6	7.5	50	25
80ZXL50-32	80	80	6	7.5	50	32
80ZXL60-55	80	80	6	18.5	60	55
80ZXL60-70	80	80	6	22	60	70
100ZXL100-20	100	80	6	11	100	20
100ZXL100-40	100	100	6	18.5	100	40
100ZXL100-65	100	100	6	30	100	65
100ZXL70-75	100	100	6	30	70	75
Model	Inlet	Outlet	Suction Lift	Motor Power	Flow Rate	Head
Model	(mm)	(mm)	(m)	(kW)	(m3/h)	(m)
150ZXL170-55	150	150	5	45	170	55
150ZXL170-65	150	150	5	55	170	65
150ZXL160-80	150	150	5	55	160	80
200ZXL400-32	200	200	5	55	400	32
200ZXL280-63	200	200	5	90	280	63
200ZXL350-65	200	200	5	110	350	65
250ZXL550-32	250	250	5	75	550	32
250ZXL400-50	250	250	5	90	400	50
250ZXL450-55	250	250	5	110	450	55
250ZXL400-75	250	250	5	132	400	75
300ZXL600-32	300	300	5	90	600	32
300ZXL500-50	300	300	5	110	500	50
300ZXL550-55	300	300	5	132	550	55

How to Select a Pump Model

• Determine required suction lift height and confirm self-priming capability margin

• Calculate duty point (flow rate & head) based on pipeline loss and elevation difference

• Confirm restart frequency and select suitable seal configuration

• Evaluate installation layout to ensure proper suction piping design

• Verify liquid temperature and medium cleanliness level

✔ Proper duty-point matching ensures stable suction lift, efficient hydraulic performance, and reliable restart capability.

Engineering Notes

• Self-priming height is influenced by suction pipe length and leakage tightness

• Avoid excessive suction pipeline resistance

• Installation base must ensure alignment stability

• Not suitable for fluids with large solids or fibrous content

Compliance & Quality Assurance

• Hydraulic performance test according to design duty point

• Casing hydrostatic pressure test

• Dynamic balance verification of impeller

• Material traceability documentation

• Optional third-party inspection upon request

Safety Notice

• Do not operate under dry-running condition

• Ensure suction piping is airtight before startup

• Disconnect power before maintenance

• Do not exceed specified temperature and pressure limits

OEM & Customization

This pump series supports engineered configuration and duty-based matching. Technical adjustments can be made according to system requirements and installation conditions.

Available options include:
• Motor voltage & frequency
• Mechanical seal type and configuration
• Wetted parts material selection
• Surface coating and corrosion protection

Configuration is determined based on duty point and project specifications.

FAQs

Q: What is the maximum self-priming height?
A: Self-priming height depends on model and suction pipeline configuration, typically up to 6–8 meters under standard conditions.

Q: Can the pump operate under VFD control?
A: Yes, operation under variable frequency drive is possible within rated speed limits.

Q: What sealing options are available?
A: Standard mechanical seal, with optional high-temperature or corrosion-resistant configurations.

Q: What is the allowable working pressure?
A: Maximum working pressure is ≤ 1.0 MPa depending on model.

Q: Is the pump suitable for slightly contaminated water?
A: Limited suspended particles are acceptable; not suitable for heavy solids or fibrous media.

Q: What standards does the pump comply with?
A: Designed according to general centrifugal pump structural standards and internal factory performance validation procedures.