Alfa Laval LKH Centrifugal Pump

Alfa Laval LKH Centrifugal Pump

The sanitary centrifugal pump from the Alfa Laval LKH series represents the premium standard in hygienic fluid handling. Engineered to increase process productivity, this pump is distinguished by its high efficiency, gentle product treatment, and robust chemical resistance. Whether you are managing dairy transfers or beverage production, the LKH pump provides a wide range of flow rates and pressures to meet demanding industrial requirements. These precision-engineered units stand out by delivering greater energy efficiency than similar pumps, helping facilities reduce both energy consumption and their CO2 footprint while ensuring reliable daily operation.

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High-Efficiency Sanitary Centrifugal Pump Design

The Alfa Laval LKH is built to optimize energy consumption through a combination of tight tolerances, a premium motor, and an advanced impeller design. By minimizing recirculation during operation, the equipment reduces power loss and ensures that the product moves through the system with minimal shear. All media-contacting steel parts, including the pump casing, impeller, and backplate, are constructed from 316L stainless steel (W. 1.4404), providing excellent corrosion resistance and hygiene for sensitive applications.

How to Maintain Food Grade Centrifugal Pumps

Maintenance is streamlined through a modular front-loading shaft seal design. The spring and washers are mounted on the atmospheric side, which allows technical teams to replace the shaft seal in just a few minutes without complex disassembly. This design not only reduces maintenance costs but also maximizes uptime. The balanced seal construction further protects your process by minimizing the risk of seal opening during unforeseen pressure shocks, ensuring a consistent and secure production environment.

Reliable Hygienic Fluid Handling with Precision Alignment

Structural integrity is provided by a stainless steel shroud that protects the motor and four adjustable stainless steel legs for stable installation. The semi-open impeller features a special vane design specifically for gentle product handling. A compression coupling securely attaches the stub shaft to the motor shaft, ensuring precision alignment that reduces vibration and extends the lifespan of the internal components. This robust mechanical design makes the LKH a reliable choice for continuous duty in high-standard facilities.

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
  • Temperature range: -10 °C to +140 °C (EPDM)
  • Max inlet pressure (LKH-5): 600 kPa / 6 bar
  • Max inlet pressure (LKH-10 to -70): 1000 kPa / 10 bar
  • Shaft seal type: Front-loading mechanical shaft seal
Alfa Laval LKH Centrifugal pump Flowchart

Options and Configurations

  • Single flushed shaft seal for cooling and cleaning
  • Double mechanical shaft seal for enhanced containment
  • Impeller with reduced diameter for specific duty points
  • Rotating seal face made of Silicon Carbide
  • Alternative product wetted elastomers in NBR, FPM, or FEP
  • Vertical drain connection (1/2") for self-draining
  • Mechanically polished product wetted surface finish to Ra ≤ 0.8 μm
  • Inducer option for models LKH-10 to LKH-50 to improve suction performance
  • ATEX approved execution (LKHex) for hazardous environments
  • Product wetted surface finish measurement with certificate (Ra ≤ 0.8 μm)

Motor Details

  • Motor standard: Foot-flanged motor according to IEC metric standard
  • Motor sizes (50 Hz): 0.75 - 110 kW
  • Motor sizes (60 Hz): 0.75 - 110 kW
  • Motor speed (2 poles): 3000/3600 rpm at 50/60 Hz
  • Motor speed (4 poles): 1500/1800 rpm at 50/60 Hz
  • Protection class: IP 55
  • Insulation class: F
Tanks and stainless steel tubes and pumps in an industrial setting.

Industries

The Alfa Laval LKH sanitary centrifugal pump is engineered for the rigorous demands of food and beverage processing, dairy manufacturing, and personal care production. It supports industry-level productivity by ensuring high-efficiency transfers and reliable CIP cleanability. These high-performance units are a staple in hygienic manufacturing facilities requiring reliable liquid transport.

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
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.

Yes, when equipped with EPDM elastomers, the pump can operate in temperatures ranging from -10 °C up to +140 °C. For flush housing sterilization, the unit handles temperatures up to 125 °C.

Maintenance is straightforward thanks to the front-loading design. The shaft seal can be replaced in just a few minutes because the spring and washers are mounted on the atmospheric side, removing the need for complex disassembly.

The LKH is available in an ATEX approved execution (LKHex). Additionally, configurations can include motors with increased safety or flame-proof specifications to meet specific site requirements.

Call us

+49 721 / 470 518 – 10

Send a message

 info@euroflow.de