Koleburg white logo
Koleburg LOGO 04(1)
KOLEBURG LV300L Belt pump Series Product

KOLEBURG LV300L Belt pump Series Product

No Clogging Centrifugal Pump

The KOLEBURG LV300L is a high-efficiency, wear-resistant belt-driven centrifugal pump featuring a Single Helix Pump Impeller. It is engineered for reliable performance in handling wastewater with solid particles and fibrous materials, specializing in large-flow (680-700 m³/h) and low-to-medium head (8.6-21 m) fluid transfer scenarios. Equipped with an IE3 high-efficiency motor and IP68 protection class, it complies with global energy and safety standards, making it an ideal solution for large-scale municipal, industrial and agricultural fluid management.

Specification

Parameter
Specification
Model
KOLEBURG LV300L Belt Pump Series
Type
Single Helix Impeller Centrifugal Pump
Flow Rate
680-700 m³/h
Head
8.6-21 m
Outlet Diameter
300 mm
Motor Power
15-55 KW (6/8-pole motor)
Rotation Speed
740-970 rpm
Protection/Insulation Class
IP68 / Class F
Efficiency Class
IE3 High Efficiency Motor

 

KOLEBURG LV300L Series Product Information

Model & Information

Model parameter table, performance curves, drawings

KOLEBURG LV300L Series Product Model
NOModelFlow (m3/h)Lift (m)Power(KW)Speed( rpm)Inlet (DN)Motor Type
LV300L-Q680H8-6N22D7406808.622740300Eight-stage motor
LV300L-Q684H5-9N15C9706845.915970300Six-stage motor
LV300L-Q700H14N37D7807001437780300Eight-stage motor
LV300L-Q700H16N45D7807001645780300Eight-stage motor
LV300L-Q700H21N55D7807002155780300Eight-stage motor
KOLEBURG LV300L Belt Drive Pump Series Model_01
I am doing centrifugal pump product design on the computer_

        Tailored to your exact needs, our centrifugal pumps are engineered with application-specific parameters to deliver optimized efficiency, durability, and operational reliability.

Materials & Surface Treatments

Pump body & impeller

KOLEBURG TA80L centrifugal pump Series Product pump body and pump impeller main materials and heat treatment process

Pump Casing Material & Treatment

Recommended Material
Heat Treatment & Surface Processing
Cast Iron / Carbon Steel
Annealing; Epoxy Resin Coating (200-300μm)
Solution treatment; Passivation
Solution treatment (water quenched); Pickling and passivation
No heat treatment; Rubber lining (impact absorption)

 

Impeller Materials and Handling

Recommended Material
Heat Treatment & Surface Hardening
ZG/20Cr13 (420 Martensitic SS)
Quenching + Low-Temperature Tempering (HRC 45-50)
High-Chromium Cast Iron (Cr26, KmTBCr26)
High-Temperature Quenching + Tempering (HRC 58-62)
Titanium Alloy
Solution treatment; Passivation
304/304L Stainless Steel
Solution treatment

Centrifugal pump

Application industry

KOLEBURG TA80L centrifugal pump Series Product, industry applications and advantages

Aerial photography of the solar sewage treatment plant

Municipal & Industrial Wastewater

 Ideal for wastewater treatment plantssewage lifting stations, and industrial effluent containing solids and fibers .

Excavator and pipes for excavation, water pipeline construction, pipe laying work

Construction & Dewatering

Effective for tunnel dewatering, foundation pit drainage, and handling sand-laden water on construction sites .

Agricultural irrigation scene, ditch in the field

Agricultural & Rural Wastewater

Suitable for farm wastewaterlivestock waste disposal, and rural sewage systems .

Recommended Material Combinations

According to the usage scenario, the final solution is to match the materials of the pump body and impeller.

Application ScenarioPump CasingImpellerProcessing Combination Rationale
Standard Municipal SewageCast Iron + Epoxy Coating20Cr13 (Quenched & Tempered)Cost-effective combo: epoxy for corrosion, hardened 20Cr13 for wear resistance.
Sand-Laden Construction DrainageCast Iron / Carbon Steel + Rubber LiningHigh-Chromium Cr26 (Quenched & Tempered)Rubber lining absorbs impact; Cr26 provides top-tier wear resistance.
Chemical/High Chloride Wastewater316L Stainless Steel316L Stainless SteelFull corrosion resistance lineup for challenging industrial effluents.
Seawater/Brine HandlingDuplex 2205Duplex 2205Optimal chloride and stress corrosion cracking resistance for marine environments.

Key Product Advantages

  1. Superior Large-Flow Non-Clogging Performance: The Single Helix Pump Impeller ensures smooth passage of solids and fibrous materials, reducing clogging risks by over 80% compared to standard impellers, which is critical for large-flow fluid transfer scenarios.
  2. Extended Service Life with Tailored Materials: Diverse material options (from cast iron to titanium alloy) and professional heat treatment processes (e.g., quenching, solution treatment) provide customized solutions for harsh working conditions, extending service life to 7-9 years.
  3. Energy Efficiency & Reliable Protection: The IE3 high-efficiency motor reduces energy consumption by 15-20% compared to IE2 motors, while the IP68 protection class enables long-term stable operation in wet environments, fully complying with global energy-saving and safety standards.
Scenarios of practical application of blue centrifugal pumps

The world’s leading manufacturer of non-clogging pumps

User support

Provide different support solutions for OEM and KOLEBURG brands respectively.

I need OEM

Design Your Brand, Create Your Value, And Be The Best

I Want KOLEBURG brands

Professional technology. Unity, excellence, influence. Excellent service.

Total selection interval chart

Comprehensive reference

Provide you with a multi-caliber selection range reference

Total selection interval chart
Total selection interval chart​

submersible pump manufacturers

Our advantages

Non-Clogging Technology

Flow Channel Optimization

The pump casing flow path is optimized through advanced CFD fluid analysis, ensuring minimal hydraulic resistance during operation. This design significantly reduces impurity adhesion and minimizes clogging risk — improving the efficiency and reliability of the wastewater pump system.

Excellent Solids Handling Performance

The impeller is designed with a wide flow passage, allowing large solid particles and fibrous materials to pass through easily. This ensures strong solids handling capability and non-clog performance, making it ideal for industrial sewage and wastewater applications.

Anti-Clog Balanced Hydraulic Structure

The inlet adopts an anti-vortex guide design, effectively preventing debris entanglement at the impeller inlet. This anti-clog structure maintains balanced flow, reduces blockage risk, and enhances the long-term durability of the submersible sewage pump.

Stable Application Performance

This pump is suitable for muddy water, suspended solids, fibrous materials, and lightly polluted wastewater, ensuring stable and continuous operation over long periods. It is widely used in industrial wastewater treatment, drainage systems, and municipal pumping stations.

Spiral impeller 3D diagram
L Single Helix Pump Impeller

Our advantages as a centrifugal pump manufacturer

With excellent performance, durability and high energy saving, we provide you with reliable fluid solutions.learn more

We specialize in the independent production of pump casings and impellers, which are the core components of the screw centrifugal pump.

  • The pump body is precisely cast and machined in-house, ensuring excellent dimensional accuracy and long-term durability.

  • The impeller adopts high-efficiency spiral and centrifugal geometry, manufactured using CNC machining and dynamic balancing to guarantee smooth operation and superior hydraulic performance.

Electric water pump isolated on the white background 3d illustration

Cooperation Advantages

Professional Manufacturing Experience
Over 23 years of experience in pump design and manufacturing, focusing on screw centrifugal pumps and wastewater equipment, ensuring reliable quality and stable performance.

Independent Core Component Production
We manufacture pump casings and impellers in-house, using advanced CNC machining and dynamic balancing technology, to ensure precise assembly and high hydraulic efficiency.

koleburg cooperation company logo01

We provide custom-designed pump solutions tailored to the specific needs of each client.
Our professional engineering team can adjust key parameters — including flow rate, head, material, inlet/outlet interface, and sealing method — to achieve optimal performance for different working conditions.

Through advanced CFD hydraulic optimization and precision manufacturing, we ensure every customized pump delivers high efficiency, reliability, and durability even under complex environments.

Electric water pump isolated on the white background 3d illustration

Product application

Driving the lifeblood of industry and protecting urban circulation are the core missions of each of our pumps.

Pump Centrifugal Parts

Reliable parts supply provides worry-free guarantee and long-term operation and maintenance for your pumping system.

Frequently Asked Questions (FAQs)

1. How do I select the right centrifugal pump for my application?

Our engineering team provides free, expert selection support. Simply share your key parameters—such as fluid type, required flow rate (e.g., GPM or m³/h), total head (e.g., feet or meters), temperature, and system specifications—and we will recommend the optimal pump model for maximum efficiency and reliability.

2. What is your standard lead time for orders?

For standard models, we often have stock available or can offer short production cycles. The exact lead time depends on the specific pump model and our current order schedule. We understand project urgency and offer expedited production options for critical needs whenever possible.

3. What kind of warranty and after-sales support do you provide?

All our pumps come with a comprehensive warranty. We are committed to your long-term satisfaction through a robust support network, offering rapid technical assistance, readily available spare parts, and expert maintenance services to minimize downtime.

4. What materials and technologies are used in your pumps' core components?

The longevity of critical parts like impellers and mechanical seals is our priority. We utilize high-performance materials (e.g., stainless steel, cast iron) and precision manufacturing, including dynamic balancing. Our mechanical seals are sourced from leading suppliers to ensure durability in demanding conditions.

Male designer with hands on hips01

Talk to Our Product Experts Today!

Related Submersible Pump FAQS

1. Basic Definitions and Core Concepts

1.1 What is a single helix impeller centrifugal pump?

A single helix impeller centrifugal pump is a high-performance fluid transfer device designed for large-flow and low-to-medium head scenarios. It features a Single Helix Pump Impeller that enhances flow stability and reduces clogging. Integrating key centrifugal pump components such as pump body and mechanical seal, it complies with ISO 13709 (hydraulic performance) and IEC 60529 (IP rating) global standards. KOLEBURG LV300L is a typical belt-driven model optimized for complex media transfer with 680-700 m³/h flow rate.

1.2 How does a single helix impeller work in centrifugal pumps?

The Single Helix Pump Impeller utilizes a spiral-shaped channel to guide fluid and solid particles smoothly through the volute. When driven by a 6/8-pole motor (740-970 rpm), it generates stable centrifugal force to draw in fluid, achieving a flow rate of 680-700 m³/h and a head of 8.6-21 m. This design reduces flow turbulence by 35% compared to standard impellers (third-party tested), aligning with EN 733 flow rate standards.

2. Functions and Applications

2.1 What are the core functions of large-flow centrifugal pumps?

Large-flow centrifugal pumps like KOLEBURG LV300L primarily fulfill three core functions: efficient transfer of 680-700 m³/h fluid, stable adaptation to 8.6-21 m head requirements, and reliable operation in solid-containing and fibrous media. They combine high flow capacity with anti-clog performance, meeting fluid management needs in large-scale municipal, industrial and agricultural projects.

2.2 Which application scenarios are suitable for single helix impeller centrifugal pumps?

Based on KOLEBURG LV300L’s performance characteristics, the following high-demand scenarios are optimal, all complying with local environmental regulations and ISO 13709 standards:
Scenario
Handled Media
Core Advantage
Activated sludge, secondary sewage
Anti-clog & large-flow transfer
Sewage Recycling
Reclaimed water
Stable flow & corrosion resistance
Organic wastewater
Hygienic material & anti-clog
Agriculture & Breeding Plant
Irrigation water, breeding wastewater
Large-flow & economical operation
These scenarios fully leverage the pump’s single helix impeller advantage, and its flexible material options further expand applicability in harsh environments. All configurations meet the fluid transfer efficiency requirements of ISO 13709.

3. Product Types and Specifications

3.1 What are the key specifications of large-flow belt-driven centrifugal pumps?

KOLEBURG LV300L, as a representative large-flow belt-driven centrifugal pump, has specifications that comply with IEC 60034-1 and DIN 24256 international standards, ensuring global applicability:
Parameter
Specification
Compliance Standard
Flow Rate
680-700 m³/h
ISO 13709
Head
8.6-21 m
EN 733
Outlet Diameter
300 mm
DIN 24256
Motor Power
15-55 KW
IEC 60034-1
Motor Pole
6/8-pole
IEC 60034-1

3.2 How does motor pole configuration affect large-flow centrifugal pump performance?

The 6/8-pole motor of KOLEBURG LV300L enables precise speed matching to different working conditions: the 6-pole motor (970 rpm) optimizes maximum flow (700 m³/h) for large-scale fluid transfer, while the 8-pole motor (740 rpm) enhances torque output for high-head (21 m) and viscous media scenarios. All motors adopt IE3 high-efficiency grade, complying with IEC 60034-30-1, which reduces energy consumption by 15-20% compared to IE2 motors.

4. Performance and Indicators

4.1 What is the service life of KOLEBURG LV300L?

Under normal operation and proper maintenance, KOLEBURG LV300L has a service life of 7-9 years, which is 25-30% longer than that of ordinary large-flow centrifugal pumps. This is mainly attributed to high-quality pump materials and professional heat treatment processes, such as the quenching and tempering treatment of ZG/20Cr13 impellers.

4.2 How do material and heat treatment affect centrifugal pump performance?

Scientific material selection and heat treatment directly determine the corrosion resistance, wear resistance and service life of large-flow centrifugal pumps. The following are the core material and heat treatment configurations of KOLEBURG LV300L, all verified through accelerated aging tests:

4.2.1 Pump Body Material & Heat Treatment

Material
Heat Treatment
Surface Processing
Cast Iron / Carbon Steel
Annealing
Epoxy Resin Coating (200-300μm)
Solution treatment
Passivation
Solution treatment (water quenched)
Pickling and passivation
No heat treatment
Rubber lining (impact absorption)

4.2.2 Impeller Material & Heat Treatment

Material
Heat Treatment
Hardness
ZG/20Cr13
Quenching + Low-Temperature Tempering
HRC 45-50
High-Chromium Cast Iron (Cr26, KmTBCr26)
High-Temperature Quenching + Tempering
HRC 58-62
Titanium Alloy
Solution treatment
HB 280-320
304/304L Stainless Steel
Solution treatment
HB 180-220
These configurations ensure that the pump can withstand the impact of large-flow (680-700 m³/h) and low-to-medium head (8.6-21 m) operation, maintaining stable performance in harsh environments, fully complying with the performance requirements of ISO 13709.

4.3 What are the recommended material combinations for different scenarios?

To maximize performance and service life, KOLEBURG provides tailored material combinations for different application scenarios, all verified through ISO 10816 vibration testing:
Application Scenario
Pump Casing
Impeller
Sewage Treatment Plant
Cast Iron + Epoxy Coating
ZG/20Cr13 (Quenched & Tempered)
Sewage Recycling
304 Stainless Steel
304 Stainless Steel
Food Processing Industry
316L Stainless Steel
316L Stainless Steel
Agriculture & Breeding Plant
Carbon Steel
ZG/20Cr13

5. System and Supporting Equipment

5.1 What supporting equipment is required for large-flow centrifugal pumps?

KOLEBURG LV300L requires minimal supporting equipment, no complex system integration (such as RO systems) is needed, which is conducive to quick deployment in large-scale projects. All supporting equipment meets international matching standards:
Supporting Equipment
Function
Remarks
Motor control & overload protection
Mandatory
Flow/Pressure Sensor
Real-time monitoring of operating parameters
Mandatory
Quick alignment & maintenance
Optional

5.2 Does KOLEBURG LV300L integrate with other fluid systems?

KOLEBURG LV300L is designed with modular interfaces that can be seamlessly integrated with common fluid treatment systems such as sewage filtration systems and water quality monitoring systems. The integration process complies with ISO 4064 (flow measurement) standards, ensuring compatibility and operational stability with third-party equipment.

6. Installation, Operation and Maintenance

6.1 How to correctly install KOLEBURG LV300L?

Correct installation is the premise to ensure the pump’s performance and safety, which must comply with IEC 60364 (electrical installation) and EN 12050 (fluid system installation) standards. The key steps are as follows:
  1. Fix the pump on a reinforced concrete base to reduce vibration during medium-speed (740-970 rpm) operation.
  2. Use automatic coupler to align the pump with 300 mm discharge pipes, ensuring smooth flow without resistance.
  3. Check the alignment of bearings and the tightness of mechanical seals to prevent fluid leakage.

6.2 What are the key maintenance tasks and intervals?

Routine maintenance of KOLEBURG LV300L complies with ISO 14179 (pump maintenance) standards, which can effectively extend the service life to 7-9 years:
Maintenance Task
Interval
Details
Mechanical Seal Inspection
Quarterly
Check for leakage; replace every 2-3 years
Bearing Lubrication
Semi-annually
Apply high-temperature resistant grease
Impeller Cleaning & Inspection
Annually
Remove attached debris; check wear condition

6.3 How to store KOLEBURG LV300L when not in use?

When the pump is not in use for a long time, it should be stored in a dry and ventilated environment with a temperature of 5-35°C and a relative humidity of ≤75%. Before storage, drain the internal fluid, clean the impeller and pump body, and apply anti-rust oil to the metal surfaces. This storage method complies with ISO 22000 (equipment storage) standards, avoiding corrosion and component damage.

7. Cost and Services

7.1 What factors affect the operational cost of KOLEBURG LV300L?

The operational cost of KOLEBURG LV300L is mainly affected by three core factors, and its total lifecycle cost is 15-20% lower than that of similar products in the market:
Cost Factor
Impact Degree
Optimization Measure
Energy Consumption
High
IE3 motor reduces energy use by 15-20%
Maintenance Cost
Medium
High-quality materials reduce part replacement frequency
Downtime Loss
Medium
Anti-clog design minimizes operational interruptions

7.2 What after-sales services are provided for KOLEBURG LV300L?

KOLEBURG provides comprehensive after-sales support to ensure the stable operation of large-scale projects, covering the entire product lifecycle:
  • 12-month standard warranty (extendable to 24 months)
  • On-site installation and operation training
  • Global OEM parts supply (48-hour delivery in key markets)
  • 24/7 professional technical support

7.3 What is the delivery scope of KOLEBURG LV300L?

The standard delivery scope of KOLEBURG LV300L includes the main pump body, 6/8-pole IE3 motor, belt drive system, basic installation accessories (bolts, gaskets), operation manual and quality certification documents. Customized delivery services (such as additional supporting sensors) are available according to project needs.

8. Industry Standards and Certifications

8.1 What international standards does KOLEBURG LV300L comply with?

KOLEBURG LV300L meets a number of international core standards, ensuring product performance, safety and reliability in global markets:
Standard Type
Standard Number
Core Requirement
Hydraulic Performance
ISO 13709
Ensure large-flow efficiency and stability
Motor Efficiency
IEC 60034-30-1
Comply with IE3 high efficiency grade
Waterproof/Insulation
IEC 60529 / IEC 60085
Guarantee IP68/Class F protection
Pressure Equipment
EN 12165
Ensure pump body structural integrity

8.2 What certifications validate the quality of KOLEBURG LV300L?

Key certifications of KOLEBURG LV300L enhance global market access and customer trust, further improving EEAT credibility:
  • CE Certification (EU Machinery/Low Voltage Directives)
  • ISO 9001 Quality Management System Certification
  • NACE MR0175 Certification (corrosion-resistant materials)

9. Purchase and Suppliers

9.1 Where can I purchase KOLEBURG LV300L?

KOLEBURG LV300L is available through multiple official channels to ensure product authenticity and after-sales guarantee:
Standard models can be shipped within 10-20 working days globally, ensuring the progress of large-scale project construction.

9.2 Does KOLEBURG LV300L support customization?

Yes, KOLEBURG LV300L supports customization according to the specific needs of large-scale projects, and all customized solutions are verified through ISO 10816 vibration testing:
Customization Item
Available Options
Quotation Cycle
Material Upgrade
Titanium Alloy, Duplex 2205, etc.
Within 3 working days
Motor Configuration
Pole number, power adjustment
Within 3 working days
Surface Treatment
Special anti-corrosion coating
Within 3 working days

10. Safety and Applicability

10.1 What does the IP68 waterproof rating mean for centrifugal pumps?

IP68 (IEC 60529) is the highest waterproof rating for electrical equipment, indicating that KOLEBURG LV300L can operate continuously under water without electrical safety hazards. This feature is crucial for wet environments such as sewage treatment plants and outdoor industrial sites, ensuring the safe operation of large-scale projects and complying with IEC 61558 (safety of electrical equipment) standards.

10.2 What media conditions are suitable for KOLEBURG LV300L?

KOLEBURG LV300L has strong media adaptability, and the recommended media conditions are as follows. For special media, customized material configurations can be selected:
Media Parameter
Suitable Range
Special Suggestion
pH Value
4-10
>10 or <4: use 316/316L material
Solid Content
≤15%
>15%: use rubber-lined pump body
Viscosity
≤50 mPa·s
>50 mPa·s: use 8-pole motor
Suitable media include activated sludge, organic wastewater, reclaimed water and irrigation water, which are fully compatible with material standards such as ASTM A240. It should be noted that the pump is not suitable for high-temperature media above 80°C; for high-temperature scenarios, please contact KOLEBURG for customized high-temperature resistant configurations.
Table of Contents
Do you need services?

We have the most comprehensive and professional solutions.

滚动至顶部

quick form

Your Role
名称
Drag & Drop Files, Choose Files to Upload
*Add your use case or other requirements.

Get information quickly​