High Flow 12inch 16inch 20inch Big Size Electric Motor Mixed Flow Irrigation Pump For Irrigation
Combines axial and centrifugal principles to deliver high discharge flow with stable efficiency—perfect for agricultural irrigation, river lifting and municipal drainage.
Multiple sizes available to match different flow and head requirements. Suitable for high-capacity pumping stations and canal water transfer systems.
Advanced impeller design reduces hydraulic loss and ensures smooth flow passage, helping minimize operating costs over long-term use.
Robust shaft, precision-balanced impeller and durable casing materials ensure reliable 24/7 performance in demanding environments.
Flow rate, head, motor power, voltage, frequency, flange standards and materials can be tailored to your project requirements.
Each mixed flow pump undergoes performance curve verification, pressure testing and vibration inspection to guarantee stable field operation.
Structured quality control system ensures consistent production standards and export compliance.
Flexible ordering supports sample testing, project bidding and phased procurement without large upfront commitments.
Need pump selection support? Send us your required flow & head — our engineers will recommend the right mixed flow model within 12 hours.
Key Attributes
| application | rrigation, Municipal Drainage, Industrial Cooling | pressure | High Pressure |
| power source | Diesel Engine/Electric | warranty | 2 Years |
| Applicable temperature | 5-80°C | Chemical Compatibility | Water |
| Connection Type | Bend, clamping coupling, Direct Coupling, Fixed Coupling, Flange Connection, Welding, shaft coupling, quick coupling, membrane coupling | Control Method | Fully Automatic Control, Manual Control, Semi-Automatic Control |
| Discharge Pipe Size | 1-16 In | Displacement | 1-5M³/H |
| Dwell time | 3 Hours | Filter material | Gravel/Quartz Sand/Sand |
| Flow Meter Specification | 50-5000m³/h | Flow Rate | 10-2,000 L/min |
| horsepower | 0.5 HP, 1.5 HP, 1 HP, 2 HP, 5 HP, 3 HP, 7.5 HP | Impeller Material | Cast iron, stainless steel, high chromium alloy |
| Import Size | Dn400/Dn150/Dn200/Dn250 | Inlet Height | 500-1200mm |
| Max Flow Rate | 500 - 50,000 m³/h | Max Pressure | 0.1 -10 Bar |
| motor | DC Motor, Explosion-Proof Motor, Inverter Motor, Three-Phase Motor, Diesel Engine | outlet size | 2 inches -25 inches/customizable |
| Outlet Type | french style | Outlet Water Oil Content | 5mg/l |
| Sealing Material | Stainless Steel, Ceramic, Carbon, PTFE | structure | Single-stage Pump |
| suction head | 5 --20 m | Surface Treatment | Spraying |
| Theory | Centrifugal | Usage | Industrial Cooling, Flood Control And Drainage |
| Feature | Efficient And Energy-Saving, Strong Resistance To Cavitation | Package | Customized |
| Speed | 600 - 1800 rpm | Advantage | Durable And Easy To Maintain |
Product Description
The High Flow Electric Motor Mixed Flow Pump (12″ / 16″ / 20″) is engineered for large-volume water transfer under medium head conditions, making it suitable for irrigation projects, drainage stations, municipal pumping systems, and water conservancy infrastructure.
Designed with a mixed-flow hydraulic structure that combines axial discharge capacity and centrifugal pressure characteristics, this pump delivers high flow stability, balanced efficiency, and reliable continuous-duty performance — essential for long-term project operation.
For procurement teams and project contractors, this model offers a scalable solution: multiple diameter options, flexible motor configurations, and full customization support to meet specific flow-head parameters and regional standards.
Built for industrial environments, the pump structure minimizes vibration, hydraulic loss, and mechanical stress — reducing downtime and maintenance risk during peak operation periods.
Key Features
Engineered for Medium Head + High Flow Applications
Mixed flow hydraulic design ensures high discharge capacity with stable head performance — ideal for irrigation canals, drainage systems, and pumping stations.
12″ / 16″ / 20″ Large Diameter Options
Designed for high-capacity systems requiring substantial water transfer volumes across extended distances.
Continuous-Duty Industrial Performance
Reinforced shaft system, dynamically balanced impeller, and heavy-duty casing structure support stable long-hour operation.
Energy-Efficient Hydraulic Passage Design
Optimized flow channel reduces turbulence and hydraulic loss, improving operational efficiency and lowering long-term electricity cost.
Customizable to Project Specifications
Flow rate, head range, motor power, voltage, frequency (50/60Hz), flange standards (ANSI/DIN), and materials can be tailored to match project requirements.
Performance Curve Verification Before Shipment
Each pump undergoes hydraulic testing and inspection to ensure actual performance matches technical specifications.
Recommended Applications
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Agricultural irrigation projects (large-scale farmland & canal systems)
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Municipal drainage and flood control systems
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Water conservancy and infrastructure pumping stations
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Industrial water transfer systems
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Regional water distribution networks
Mixed Flow Pump Application Scenarios
Irrigation Infrastructure Projects
Procurement Focus: Stable discharge, reliable long-term operation, scalable deployment
Value: High flow capacity reduces the number of units required per system.
Municipal Drainage & Flood Control
Procurement Focus: Emergency reliability + continuous-duty stability
Value: Large discharge volume supports rapid water removal during heavy rainfall seasons.
Pumping Station Construction
Procurement Focus: Performance matching + lifecycle cost control
Value: Balanced hydraulic efficiency reduces energy consumption over project lifetime.
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Why Source from LIQEN Power
This section addresses procurement concerns: quality consistency, execution capability, MOQ flexibility, and export compliance.
Factory-Direct Manufacturing
Direct pricing structure with engineering coordination support for project-based purchasing.
Low MOQ for Standard Models
MOQ starts from 1 unit, suitable for testing, distributor stocking, and phased project procurement.
ISO 9001 + CE + SGS Verified
Structured quality control and compliance documentation support for international bidding and import requirements.
Project-Based Customization Capability
Support for parameter adjustment, structural modification, and regional standard alignment.
Product Details
How to Select a Mixed Flow Pump
A Practical Buying Guide for B2B Procurement & Engineering Projects
Step One: Confirm Whether a Mixed Flow Pump Is the Right Type
Mixed flow pumps are suitable when your project requires:
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High flow rate
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Medium head range
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Continuous-duty operation
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Large-diameter piping systems
When to choose mixed flow instead of other pump types:
| Pump Type | Best For | Limitation |
| Centrifugal Pump | Medium flow, higher head | Limited discharge capacity |
| Axial Flow Pump | Extremely high flow, low head | Limited pressure capability |
| Mixed Flow Pump | High flow + medium head | Requires proper parameter matching |
If your project requires both significant discharge volume and stable pressure, mixed flow is often the balanced solution.
Step Two: Define the Core Operating Parameters
Before contacting a supplier, confirm these five parameters:
1. Required Flow Rate (m³/h)
How much water must be transferred per hour?
2. Required Head (m)
Total dynamic head including:
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Vertical lifting height
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Pipeline friction loss
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Local resistance loss
3. Medium Type
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Clean water
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Slightly turbid water
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Irrigation water
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River or canal intake
4. Installation Type
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Horizontal installation
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Vertical installation
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Submerged configuration
5. Power Supply Specification
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Voltage
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Frequency (50Hz / 60Hz)
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Motor standard
Without these parameters, any quotation is only approximate.
Step Three: Check the Performance Curve — Not Just the Nameplate
Professional procurement teams always review:
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Performance curve (Flow vs Head)
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Efficiency curve
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Power consumption curve
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NPSH requirements
Why this matters:
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Operating far from the Best Efficiency Point (BEP) increases vibration and wear
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Incorrect matching increases electricity cost
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Improper selection shortens bearing and seal life
Always request performance curve confirmation before finalizing the order.
Step Four: Evaluate Structural Design & Build Quality
For long-term project stability, inspect:
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Impeller balancing quality
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Shaft reinforcement structure
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Bearing type and rating
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Material grade (cast iron / ductile iron / stainless options)
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Surface anti-corrosion treatment
Continuous-duty projects require industrial-grade construction — not light-duty agricultural models.
Step Five: Consider Lifecycle Cost, Not Just Purchase Price
Procurement decisions should evaluate:
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Energy consumption over project lifetime
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Maintenance frequency
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Spare parts availability
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Downtime risk
A lower purchase price may result in higher electricity or maintenance cost over time.
Step Six: Confirm Customization & Compliance Capability
For infrastructure or export projects, confirm:
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Flange standards (ANSI / DIN / JIS)
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Certification support (CE, ISO documentation)
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Regional motor compatibility
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Special coating requirements
This prevents delays during installation or inspection.
Step Seven: Assess Supplier Capability
Before issuing purchase order, evaluate:
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Manufacturing experience
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Hydraulic testing process
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QC system
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MOQ flexibility
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Engineering support responsiveness
Reliable suppliers provide:
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Performance verification
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Technical recommendation
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Fast quotation turnaround
Common Procurement Mistakes to Avoid
- Selecting pump diameter without checking head requirements
- Ignoring pipeline friction loss
- Choosing based only on lowest price
- Operating outside recommended efficiency range
- Skipping factory testing verification
Quick Mixed Flow Pump Selection Checklist
Before sending inquiry, prepare:
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Required flow (m³/h)
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Required head (m)
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Installation type
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Medium type
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Power supply details
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Project location
With these six items, accurate model matching can be completed quickly.
When Should You Upgrade to a Larger Diameter Model?
Consider upgrading if:
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Flow demand may increase in future expansion
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System resistance fluctuates seasonally
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You require redundancy margin
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Project involves emergency drainage
Strategic oversizing (within efficiency range) can reduce long-term operational risk.
Final Recommendation for B2B Buyers
Selecting a mixed flow pump is not about choosing the biggest diameter — it is about matching flow, head, efficiency, and structural durability to your exact operating condition.
Professional selection minimizes:
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Energy waste
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Maintenance frequency
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Operational downtime
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Project risk
Need Assistance with Selection?
Send us your:
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Flow rate (m³/h)
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Head (m)
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Installation method
Our engineering team will:
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Verify performance curve
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Recommend appropriate mixed flow model
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Provide a detailed quotation within 12 hours
Frequently Asked Questions (FAQ)
1. How do I determine if a mixed flow pump is suitable for my project?
Mixed flow pumps are ideal for applications requiring high flow rate under medium head conditions.
If your project involves canal irrigation, drainage pumping stations, flood control systems, or large-scale water transfer where axial pumps lack sufficient head and centrifugal pumps limit flow capacity, a mixed flow pump is typically the balanced solution.
To confirm suitability, we require:
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Required flow rate (m³/h)
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Required head (m)
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Medium type
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Installation method (horizontal / vertical)
2. What flow and head range can your 12″–20″ mixed flow pumps cover?
The exact range depends on impeller design and motor configuration, but generally:
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Suitable for large discharge volume applications
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Designed for medium head systems
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Available with customized motor power options
We provide performance curve confirmation before order finalization to ensure the pump matches your specified operating point.
3. Can the pump be customized to match our regional standards?
Yes.
We support customization for:
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Voltage and frequency (50Hz / 60Hz)
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Flange standards (ANSI / DIN / JIS)
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Material selection (cast iron, ductile iron, stainless steel options)
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Motor brand requirements
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Special corrosion protection coating
For project-based procurement, parameter adjustment and structural modifications are available.
4. What testing is performed before shipment?
Each pump undergoes:
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Hydraulic performance testing
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Head and flow verification
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Vibration inspection
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Mechanical balance inspection
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Visual QC check
Test results can be provided upon request to support project documentation or tender requirements.
5. Is this pump suitable for continuous-duty operation?
Yes.
The pump is engineered for continuous-duty applications with:
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Reinforced shaft structure
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Precision-balanced impeller
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Industrial-grade bearing system
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Optimized hydraulic flow passage
Proper installation and operation within the recommended performance range ensure long-term stability.
6. What is the typical lead time for production?
Lead time depends on specification and order quantity:
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Standard models: shorter production cycle
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Customized configurations: production time adjusted based on engineering confirmation
For urgent projects, we can evaluate accelerated production scheduling.
7. What is your minimum order quantity (MOQ)?
MOQ starts from 1 unit for standard models, allowing:
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Sample testing
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Project validation
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Distributor stock trials
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Phased procurement
8. What support do you provide after delivery?
We provide:
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Installation guidance
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Operation support
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Spare parts supply
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Technical consultation for troubleshooting
For distributors and long-term partners, we support spare parts planning and inventory coordination.
9. How does a mixed flow pump compare to a centrifugal or axial pump?
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Compared to centrifugal pumps: Higher flow capacity, better suited for medium head large-volume systems.
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Compared to axial pumps: Provides higher pressure capability while maintaining large discharge volume.
It is often selected when neither pure centrifugal nor pure axial design fully meets system requirements.
10. What information should I provide to receive an accurate quotation?
To ensure precise selection and pricing, please provide:
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Required flow rate (m³/h)
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Required head (m)
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Installation method
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Power supply specification
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Medium type
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Project location (for standard compliance confirmation)
Our engineering team will provide a matched model recommendation and quotation within 12 hours.
Still unsure about pump selection?
Send us your project parameters — we will verify the operating point against the performance curve and recommend the most suitable mixed flow pump model.
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Get A Quote
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No. 9 Ping'an North Street, Nan San Tiao Area, Chang'an District, Shijiazhuang City, Hebei Province, China