The Alfa Laval LKH Series Centrifugal Pumps are high-efficiency, chemically resistant pumps designed for hygienic applications and gentle product treatment. Featuring a premium motor and semi-open impeller, the LKH centrifugal pump enables smooth process transfer with minimal recirculation. This sanitary centrifugal pump is precision-engineered to deliver superior energy efficiency, productivity, and reliable operation across a wide range of industries, including dairy, food, beverage, and personal care.
Engineered to meet stringent international process hygiene standards, the Alfa Laval LKH Series Pump reduces total cost of ownership by minimizing energy usage and simplifying maintenance. Available in 13 different sizes, it supports flow rates up to 500 m3/h and differential pressures up to 11 bar at 50 Hz, making it a trusted solution for process reliability.
Applications of Alfa Laval LKH Series Pump
The LKH Series Centrifugal Pumps are widely used in sanitary and hygienic applications such as:
- Dairy processing (milk, cream, yogurt)
- Beverage production (juices, carbonated drinks)
- Food industry (sauces, liquid ingredients)
- Personal care & cosmetics (lotions, gels)
- Pharmaceutical and biotech using LKH UltraPure models
Key Features & Benefits
Feature | Benefit |
Energy-efficient motor | Lowers energy consumption vs. mid-range and premium pumps |
Semi-open impeller | Enhances gentle product handling, reduces recirculation |
Hygienic design | Controlled compression gaskets, crevice-free interior |
Easy maintenance | External shaft seal and front-loading design |
Versatile seal options | Single, flushed, and double seals are interchangeable |
Durability | 3-year warranty on non-wearing parts when using genuine spares |
Technical Specifications
Materials:
- Product wetted parts: AISI 316L (W. 1.4404)
- Other steel components: Stainless steel
- Inside surface: Standard blasted finish
- Seals: EPDM, Carbon (rotary), Silicon Carbide (stationary)
Motor & Speed Range:
- Foot-flanged motor (IEC metric standard), IP55, insulation class F
- 2-pole (3000/3600 rpm), 4-pole (1500/1800 rpm)
- 50Hz: 0.75 – 110 kW | 60Hz: 0.75 – 110 kW
Speed range: 900 – 4000 rpm depending on motor power
How It Works
The Alfa Laval LKH pump operates by spinning a semi-open impeller mounted on a shaft, transferring rotational energy to the liquid. As the impeller rotates, it generates centrifugal force, increasing the fluid’s kinetic energy, which is then converted into pressure energy. The design minimizes internal recirculation and ensures smooth flow toward the pump outlet.
Its construction includes stainless steel casing, compression coupling, and adjustable legs for stable installation. The mechanical shaft seal—quick to replace—reduces downtime and cost. A balanced impeller prevents seal opening during pressure spikes.
Frequently Asked Questions (FAQ)
Q1: What is the Alfa Laval LKH Series Pump used for?
A: It is used for transferring hygienic and sensitive fluids in industries like dairy, beverage, food, personal care, and pharma.
Q2: What is LKH in a pump?
A: LKH refers to Alfa Laval’s sanitary centrifugal pump series, known for low energy consumption and superior hygiene.
Q3: What is the maximum flow rate and pressure for LKH pumps?
A: Up to 500 m3/h flow rate and 11 bar differential pressure at 50 Hz.
Q4: Are there different variants in the LKH series?
A: Yes. Options include LKH MultiStage, LKH Evap, LKH UltraPure, and LKH Prime, each tailored to specific process needs.
Q5: Where can I buy Alfa Laval LKH pumps or spare parts?
A: You can contact your local Alfa Laval distributor or Becker representative for genuine parts and expert support.
