Edelstahl-Hygienepumpe für sanitäre Prozesse

Alfa Laval LKHex Centrifugal Pump

Euroflow GmbH Alfa Laval Master Distributor in central and southern Germany

Alfa Laval LKHex Centrifugal Pump

Alfa Laval LKHex Centrifugal Pump

The ATEX centrifugal pump known as the Alfa Laval LKHex is a premium solution specifically engineered for use in potentially explosive environments. This unit conforms strictly to ATEX directive 2014/34/EU group II, category 2G, ensuring safety in hazardous zones while maintaining the high-efficiency standards expected in modern production. It serves industries where flammable materials are present, providing a reliable bridge between explosive-safe operation and hygienic processing requirements. By utilizing an optimized impeller design and tight tolerances, this hygienic pump minimizes recirculation, significantly reducing energy consumption and the overall CO2 footprint of your facility.

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High-Efficiency ATEX Centrifugal Pump Design

The Alfa Laval LKHex is a precision-engineered unit designed to maximize process productivity through high efficiency and gentle product treatment. All media-contacting components, including the pump casing, impeller, and backplate, are constructed from W. 1.4404 (AISI 316L) to ensure chemical resistance and durability. The pump features a semi-open impeller with a special vane design, which ensures the product is handled with extreme care to maintain its media integrity throughout the transfer process.

Reliable Operation in Explosive Environments

Safety is the primary focus of the LKHex series. The equipment is built to meet the requirements of temperature classes T3 and T4, making it suitable for a wide variety of volatile industrial applications. To provide additional protection and maintain a clean exterior, a stainless steel shroud covers the explosion-proof motor. The entire unit is supported by four adjustable stainless steel legs, allowing for easy installation and leveling within diverse plant layouts. A compression coupling securely attaches the stub shaft to the motor shaft, ensuring the precision alignment necessary for long-term mechanical reliability.

Front-Loading Seal Technology and Maintenance

To maximize uptime, the LKHex utilizes a robust mechanical design focused on ease of service. It features a modular front-loading shaft seal where the spring and washers are mounted on the atmospheric side. This design allows maintenance personnel to replace the shaft seal in just a few minutes, significantly reducing costs and downtime. The balanced seal design also provides an extra layer of protection by minimizing the risk of seal opening during unforeseen pressure shocks.

Technical Details

  • Product wetted steel parts: W. 1.4404 (AISI 316L)
  • Other steel parts: Stainless steel
  • Product wetted elastomers: EPDM
  • Rotary seal face: Carbon
  • Stationary seal face: Silicon Carbide
  • Inside surface finish: Standard blasted
  • Max inlet pressure: 500 kPa (5 bar)
  • Capacity: Up to 250 m3/h
  • Differential pressure: Up to 11 bar at 50 Hz
  • Temperature range Class T4: -10°C to +100°C
  • Temperature range Class T3: -10°C to +140°C
Alfa Laval LKHex Centrifugal pump Flowchart

Options and Configurations

  • Impeller with reduced diameter for tailored flow profiles.
  • Double mechanical shaft seal for specific containment needs.
  • Rotating seal ring of Silicon Carbide.
  • Execution without motor shroud.
  • Adjustable pads for floor mounting.
  • Product wetted surface finish mechanically polished to Ra ≤ 0.8 μm.
  • Product wetted elastomers in FPM, NBR, or FEP.
  • 1/2" drain connection for drainage.
  • Hydrostatic testing with certificate.
  • Surface finish measurement with certificate as a secondary keyword option.

Motor Details

  • Motor standard: IEC metric standard
  • Motor type: Foot-flanged ATEX approved motor
  • Poles: 2 poles
  • Speed range 50 Hz: 3000 rpm
  • Speed range 60 Hz: 3600 rpm
  • Motor sizes 50 Hz: 1.5 - 75 kW
  • Motor sizes 60 Hz: 1.5 - 75 kW
  • Frame sizes: IEC90, IEC100, IEC112, IEC132, IEC160, IEC180, IEC200, IEC250, IEC280

Beverage processing

Food processing

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Dairy processing

Beer production
Tanks and stainless steel tubes and pumps in an industrial setting.

Industries

The Alfa Laval LKHex is a critical component for specialized manufacturing sectors that operate within hazardous environments. This ATEX centrifugal pump is widely utilized in the food, beverage, and personal care industries. By meeting strict safety directives, it ensures reliable operation in demanding dairy and liquid processing facilities.

Alfa Laval Sensing and Control Think Top V50 and V70

Advanced Sensing and Control for Process Optimisation

Integrating Alfa Laval ThinkTop V50 and V70 units into your valve clusters delivers maximum uptime and significant resource savings. Their 360° LED status indication gives operators real-time flow path monitoring from any angle.

  • Resource savings: Pulse and Burst SeatClean reduce CIP fluid consumption by up to 95%.
  • Fast setup: Auto-Setup and Live-Setup cut commissioning time by up to 90%.
  • Durable: IP69K rated, -10°C to +60°C, Nylon PA12 and 1.4301 stainless steel.
  • Easy integration: Supports 24VDC PNP, AS-Interface, and IO-Link. MTTF of 224 years.
  • Universal fit: Directly interchangeable with ThinkTop Classic; fits all Alfa Laval hygienic actuators.

Ready to optimise your CIP return and process flows?

Our products

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SERVICE KIT EPDM LKH-25/35/45 - SIC/SIC SINGLE SHAFT SEAL AND IMPELLER SCREW Item number: 9611922598
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SERVICE KIT NBR LKH-25/35/45 - SIC/SIC SINGLE SHAFT SEAL AND IMPELLER SCREW
SERVICE KIT NBR LKH-25/35/45 - SIC/SIC SINGLE SHAFT SEAL AND IMPELLER SCREW Item number: 9611922599
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SERVICE KIT EPDM LKH-10/15 - C/SIC DOUBLE MECHANICAL SHAFT SEAL
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SERVICE KIT EPDM LKH-20 C/SIC - SINGLE SHAFT SEAL AND IMPELLER SCREW
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SERVICE KIT EPDM LKH-25/35/45 - C/SIC SINGLE SHAFT SEAL AND IMPELLER SCREW
SERVICE KIT EPDM LKH-25/35/45 - C/SIC SINGLE SHAFT SEAL AND IMPELLER SCREW Item number: 9611922182
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SERVICE KIT FEP SOLIDC-2 SIC/SIC FLUSHED SHAFT SEAL
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Documentation

Product leaflet Performance curves Operating instructions
Marcus Schmidt, Euroflow GmbH owner

Are you interested?

As an Alfa Laval Master Distributor in Southern Germany, Euroflow GmbH delivers premium components and expert solutions for the dairy, brewing, beverage, food, cosmetics and pharmaceutical industries. Operating across postal codes 66-99 and 07-08, we serve Baden-Württemberg, Bavaria, Saarland, Rhineland-Palatinate, Hesse, Thuringia and Saxony with dedicated technical expertise.

As your competent partner for system integration, tank construction and end-user solutions, we provide comprehensive support in selecting optimal equipment for viscous product handling and cleaning processes. Our focus on pumps, valves, heat exchangers and tank equipment ensures reliable process performance.

Contact us today for a personalised quote and discover how our technical expertise can optimise your operations.

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FAQ

Euroflow serves customers across southern and central Germany — covering postal code areas 66–99 and 07–08, spanning Baden-Württemberg, Bavaria, Saarland, Rhineland-Palatinate, Hesse, Thuringia, and Saxony. As an Alfa Laval Master Distributor for tank manufacturers, plant engineers, system suppliers, and end customers, we provide expert support in selecting and designing systems for viscous product handling and cleaning applications.

The LKHex is engineered to meet the ATEX directive 2014/34/EU group II, category 2G. It features specific temperature class ratings of T3 and T4 and is equipped with a specialized explosion-proof motor to ensure safe operation where flammable hazards are present.

The hygienic pump design places the seal spring and washers on the atmospheric side rather than inside the product zone. This allows operators to replace the shaft seal in just a few minutes without complex disassembly of the pump housing.

Yes, while the standard finish is blasted, you can opt for mechanical polishing to Ra ≤ 0.8 μm. This option includes surface finish measurement certificates to meet stringent hygienic standards for your process.

Any questions?

If we still haven't answered your questions, you can contact us below and we will get back to you as soon as possible.

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+49 721 / 470 518 – 10

Send a message

 info@euroflow.de