Koleburg white logo
Koleburg LOGO 04(1)
KOLEBURG TB50SL Horizontal Submersible Pump Series Product 01

KOLEBURG TB50SL Horizontal Submersible Pump Series Product

No Clogging Centrifugal Pump

The KOLEBURG TB50SL Horizontal Submersible Pump is a high-efficiency submersible pump integrated with advanced Pump Technology and equipped with a Double Spiral Pump Impeller, engineered for stable and powerful fluid conveyance in diverse industrial and environmental settings. It combines robust structural design, flexible material selections, and professional heat treatment processes, perfectly aligning with Centrifugal pump applications to meet high-demand operational requirements.

Specification

ParameterSpecification
ModelKOLEBURG TB50SL Horizontal Submersible Pump
Flow Rate10-50 m³/h
Head10-50 m
Outlet Diameter50 mm
Motor Power1.1-5 KW
Motor Poles2 poles
Rotational Speed2900 rpm
Protection/Insulation ClassIP68 / Class F / IE3
Impeller TypeDouble Spiral Pump Impeller

KOLEBURG TB50SL Horizontal Submersible Pump

Model & Information

Model parameter table, performance curves, drawings

KOLEBURG TB50SL Series Product Model
NOModelFlow (m3/h)Lift (m)Power(KW)Speed( rpm)Inlet (DN)Motor Type
TB50SL-Q15H50N5-5A290015505.5290050Two-stage motor
TB50SL-Q20H10N1-5A290020101.5290050Two-stage motor
TB50SL-Q20H50N7-5A290020501.1290050Two-stage motor
KOLEBURG TB50SL Horizontal Submersible 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 TB50SL Horizontal Submersible Pump body and pump impeller main materials and heat treatment process

Pump Casing Material & Treatment

MaterialKey CharacteristicsHeat Treatment & Surface Processing
Cast Iron/Cast SteelCost-effective, high rigidityAnnealing; anti-corrosion coating
304/304l MaterialBasic corrosion resistanceSolution annealing; passivation
316/316L MaterialSuperior chloride resistanceSolution annealing; passivation
Duplex 2205High strength & corrosion resistanceSolution treatment; pickling
Rubber LinedAbrasion-resistantLining bonding; surface finishing

Impeller Materials and Handling

MaterialKey CharacteristicsHeat Treatment & Surface Hardening
ZG/20Cr13Wear-resistant, cost-effectiveQuenching + tempering (HRC 48-52)
316/316L MaterialDual anti-corrosion/wearSolution annealing; edge hardening
Duplex 2205High durability & strengthSolution treatment; precision grinding
Titanium AlloyExtreme corrosion resistanceSolution annealing; surface cleaning

Centrifugal pump

Application industry

KOLEBURG TB50SL Horizontal Submersible Pump, industry applications and advantages

Aerial photography of the solar sewage treatment plant

Ideal for large-scale sludge transfer, activated sludge circulation, and sewage recycling, with non-clog performance for high-volume wastewater.

Diggers mining limestone in a flooded quarry

Reliable for underground mine dewatering and abrasive mineral slurry transfer, withstanding extreme media abrasion and variable lift requirements.

construction site

Construction Project

IP68 waterproof rating supports reliable dewatering in submerged or humid construction sites, with high-speed operation enhancing efficiency.

Recommended Material Combinations

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

Application ScenarioPump CasingImpellerCombination Rationale
Sewage Treatment PlantCast IronZG/20Cr13Cost-effective; wear-resistant for wastewater
Sludge Thickening System304/304l Material316/316LCorrosion-resistant for high-viscosity sludge
Chemical Plant316/316L Material316/316LFull corrosion protection for chemical media
Construction ProjectRubber LinedDuplex 2205Abrasion-resistant for sand-laden water

Key Product Advantages

  1. Superior Non-Clogging & Efficient Performance: The double spiral impeller design ensures smooth passage of solids and viscous media, while the 2900 rpm high speed and 10-50 m³/h flow rate deliver powerful conveyance efficiency.
  2. Strong Material Adaptability: Multiple premium material options (including 316/316L, Duplex 2205) and professional Heat Treatment processes enhance corrosion and wear resistance, adapting to harsh media conditions.
  3. Reliable & Energy-Saving Operation: IP68 waterproof rating and IE3 high-efficiency motor guarantee long service life and low energy consumption, complying with global energy efficiency and safety standards.
Green water pump in power plant

Related products

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

Double Spiral Pump Impeller

The double spiral pump impeller is engineered with two symmetrically arranged spiral flow channels, which work in tandem to enhance hydraulic efficiency and solids handling performance. This innovative design ensures smooth fluid transition and balanced load distribution, reducing turbulence and vibration during operation.

By incorporating a dual-passage structure, the impeller effectively handles large solid particles, fibrous materials, and sludge with minimal risk of clogging. The spiral geometry promotes a natural guiding motion, allowing debris to pass through smoothly without accumulating at the inlet or within the flow channels.

This impeller is particularly suitable for demanding applications such as industrial wastewater, municipal sewage, and drainage systems containing high concentrations of suspended solids. Its robust anti-clog design supports long-term, stable operation while maintaining high pumping efficiency and durability under continuous heavy-duty conditions.

Double Spiral Pump Impeller
Double Spiral 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. Fundamentals of Double Spiral Impeller Submersible Pumps: Definitions and Working Principles

1.1 What is a double spiral impeller submersible pump and how does it work?

A double spiral impeller submersible pump is a specialized fluid-handling device designed to operate fully submerged, featuring a Double Spiral Pump Impeller that creates dual spiral flow paths for efficient media conveyance. Its working principle relies on the impeller’s high-speed rotation (2900 rpm for the KOLEBURG model) to generate centrifugal force, drawing media into the pump and pushing it through the discharge port without the need for priming. Integrated with advanced Pump Technology, this design minimizes clogging and enhances flow stability, making it ideal for handling viscous or solid-laden media.

1.2 What are the core components of a high-performance submersible pump?

High-reliability submersible pumps consist of precision-engineered components that work in synergy to meet industrial demands. The table below outlines key components, their functions, and quality assurances aligned with global standards:
Core ComponentPrimary FunctionQuality Assurance
Pump BodyEncloses internal components and guides media flowPrecision casting with leak-proof sealing
Double Spiral ImpellerGenerates centrifugal force for fluid movementWear-resistant materials and heat treatment
MotorPowers impeller rotationIE3 high-efficiency rating and Class F insulation
Mechanical SealPrevents media from entering the motorCorrosion-resistant design for long-term sealing
These components adhere to strict manufacturing tolerances, ensuring the pump operates reliably in submerged conditions and meets international performance benchmarks.

2. Application Scenarios and Media Compatibility of Submersible Pumps

2.1 Which industries benefit most from double spiral impeller submersible pumps?

Double spiral impeller submersible pumps excel in handling high-viscosity, solid-containing media, making them indispensable across multiple industries. The table below highlights core application scenarios and product advantages:
Application ScenarioKey Product AdvantageIndustry Alignment
Sewage Treatment Plant10-50 m³/h flow rate handles continuous wastewater conveyanceEnvironmental Protection Industry
Chemical PlantCorrosion-resistant materials adapt to chemical effluentsIndustrial Productionk
Sludge Thickening SystemDouble spiral design prevents sludge cloggingWastewater treatment standards
Construction ProjectIP68 rating supports submerged dewateringSpecial projects
Each scenario leverages the pump’s unique design to address industry-specific challenges, ensuring compliance with sector-specific operational requirements.

2.2 What types of media can horizontal submersible pumps handle effectively?

The KOLEBURG TB50SL’s flexible Pump Material options enable compatibility with diverse media types. The table below details recommended media and corresponding materials:
Media TypeKey CharacteristicsRecommended Material
Municipal SewageSuspended solids, low corrosionCast Iron / ZG/20Cr13
Industrial SludgeHigh viscosity, abrasive particlesDuplex 2205
Chemical EffluentsMild to moderate corrosiveness316/316L Material
Sand-Laden WaterAbrasive, high wear potentialRubber Lined
This versatility ensures the pump performs reliably in harsh media conditions while maintaining extended service life, meeting international media-handling safety standards.

3. Key Specifications and Performance Metrics of Submersible Pumps

3.1 What are the critical performance parameters of the KOLEBURG TB50SL submersible pump?

Performance parameters define a pump’s suitability for specific tasks. The table below presents core specifications of the KOLEBURG TB50SL, all validated to meet industry standards:
Performance ParameterSpecificationIndustry Advantage
Flow Rate10-50 m³/hWide range adapts to varying demands
Head10-50 mCovers low to medium-high lift requirements
Outlet Diameter50 mmStandard size for easy pipeline integration
Motor Power1.1-5 KWEnergy-efficient for diverse applications
Rotational Speed2900 rpmHigh-speed operation enhances conveyance efficiency
These parameters are optimized to balance power and efficiency, ensuring consistent performance across different operational conditions.

3.2 How does motor efficiency class impact submersible pump operation?

Motor efficiency class directly influences energy consumption and operational costs. The KOLEBURG TB50SL uses an IE3 high-efficiency motor, with key benefits outlined below:
Efficiency ClassEnergy Saving PotentialOperational Benefit
IE310-15% vs. IE2 motorsLower electricity costs over lifespan
Class F InsulationTemperature resistance up to 155°CSafe operation in high-heat environments
Compliance with IE3 standards aligns the pump with global energy regulations, reducing carbon footprint while ensuring reliable long-term operation.

4. Material Selection and Heat Treatment for Submersible Pump Casings and Impellers

4.1 What material options are available for submersible pump casings and impellers?

Material selection is critical for corrosion and wear resistance. KOLEBURG offers a comprehensive range of materials tailored to different environments:
ComponentMaterial OptionsKey Advantage
Pump CasingCast Iron, Carbon Steel, 304/304L, 316/316L, Duplex 2205, Rubber LinedBalances cost and durability
ImpellerZG/20Cr13, 316/316L, Duplex 2205, Titanium AlloyOptimized for media-specific wear resistance
All materials meet international standards (e.g., ASTM, DIN), ensuring compatibility with global industry requirements and reliable performance in harsh conditions.

4.2 How do heat treatment processes enhance submersible pump component durability?

Professional Heat Treatment processes improve material mechanical properties, critical for withstanding harsh operating conditions:
Heat Treatment MethodApplication ComponentCore Benefit
AnnealingCast Iron CasingsRelieves internal stress, prevents cracking
Solution AnnealingStainless Steel PartsEnhances corrosion resistance and ductility
Quenching + TemperingZG/20Cr13 ImpellersHardens material (HRC 48-52), improves wear resistance
These processes are applied per material specifications, ensuring components exceed industry durability standards and deliver long service life.

5. Installation, Operation, and Maintenance of Horizontal Submersible Pumps

5.1 What are the essential steps for installing a horizontal submersible pump?

Proper installation is vital for optimal performance and safety. The table below outlines core steps aligned with industry best practices:
Installation StepKey OperationSafety & Performance Note
Site PreparationEnsure level, debris-free installation areaReduces vibration and impeller damage
Pipeline ConnectionUse 50mm diameter pipes with secure couplingsPrevents leakage and pressure loss
Motor WiringConnect to compatible power supply, verify insulationComplies with electrical safety standards
Submersion CheckEnsure full submersion without air entrapmentOptimizes suction and motor cooling
Following these steps ensures the pump operates within design parameters, reducing malfunction risks and extending service life.

5.2 How often should submersible pumps be maintained and what does it involve?

Regular maintenance maximizes reliability and minimizes downtime. The table below outlines recommended maintenance schedules:
Maintenance IntervalCore TasksPurpose
MonthlyInspect mechanical seal for leaks, clean intakePrevents clogging and media leakage
QuarterlyCheck motor temperature, lubricate bearingsReduces friction and extends motor life
AnnuallyInspect impeller wear, test insulation resistanceEnsures efficient performance and safety
Adhering to this schedule maintains the pump’s IE3 efficiency and IP68 protection, meeting industry reliability benchmarks.

6. Industry Standards and Certifications for Submersible Pumps

6.1 What international standards do high-quality submersible pumps comply with?

The KOLEBURG TB50SL is designed to meet global industry standards, ensuring safety and performance:
Industry StandardCompliance AspectUser Benefit
IP68 ProtectionWaterproof/dustproof performanceSafe operation in fully submerged conditions
IE3 EfficiencyMotor energy consumptionLower operational costs
ISO 9001Quality managementConsistent product reliability
Class F InsulationMotor temperature resistanceSafe operation in high-heat environments
Compliance with these standards demonstrates adherence to global best practices, providing users with confidence in safety and performance.

6.2 What does the IP68 waterproof rating mean for submersible pump operation?

The IP68 rating is the highest protection class for submersible equipment:
  • IP6X (Dust Protection): Complete dust ingress prevention, protecting electrical components from corrosion and short circuits.
  • IPX8 (Water Protection): Safe operation in continuous submersion (customizable depth), suitable for long-term use in sewage tanks, construction pits, and other wet environments.
This rating ensures the pump operates safely in harsh wet conditions, complying with international electrical safety standards.

7. Customization and After-Sales Services for Submersible Pumps

7.1 Can submersible pumps be customized for specific industrial needs?

Yes, KOLEBURG offers tailored customization to meet unique application requirements:
Customization OptionAvailable ChoicesApplication Scenario
Material Selection304/304l Material, Titanium Alloy, Rubber LinedCorrosive/abrasive media
Motor Power Adjustment1.1-5 KW rangeSpecific flow/head demands
AccessoriesSpecial Electrical Cabinet, automatic couplerAutomated operation
All customizations maintain compliance with industry standards, ensuring performance and safety are not compromised.

7.2 What after-sales support is provided for KOLEBURG submersible pumps?

KOLEBURG delivers comprehensive after-sales services to maximize customer value:
  • 1-year warranty on pump body and motor, covering manufacturing defects.
  • 24/7 technical support for installation, operation, and troubleshooting.
  • Fast delivery of genuine spare parts (e.g., mechanical seals, impellers) to minimize downtime.
  • Annual performance inspection and maintenance guidance.
These services align with global after-sales standards, ensuring reliable support throughout the pump’s lifecycle.

8. Safety and Applicability of Submersible Pumps in Harsh Environments

8.1 How to ensure submersible pumps operate safely in corrosive environments?

Safe operation in corrosive environments relies on material selection and design:
  • Choose corrosion-resistant materials (316/316L, Duplex 2205, Titanium Alloy) based on media chemistry.
  • Opt for sealed components (e.g., mechanical seals) to prevent media contact with electrical parts.
  • Conduct regular corrosion inspections per industry guidelines.
The KOLEBURG TB50SL’s material flexibility and sealed design ensure safe operation in corrosive environments, meeting international safety standards.

8.2 Are horizontal submersible pumps suitable for continuous operation?

Yes, horizontal submersible pumps like the KOLEBURG TB50SL are engineered for continuous operation:
  • The 2900 rpm motor is designed for long-running durability with Class F insulation.
  • IP68 protection prevents overheating and moisture damage during extended use.
  • Wear-resistant materials and heat treatment ensure components withstand prolonged stress.
This suitability makes the pump ideal for 24/7 applications such as sewage treatment plants and industrial process lines, complying with industry continuous-operation standards.
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​