LKHex

The Alfa Laval LKHex Centrifugal Pump is a premium pump for use in hygienic applications which must meet the requirements of the ATEX directive 2014/34/EU group II, category 2G, temperature class T3 and T4. To increase process productivity, it is distinguished by high efficiency, gentle product treatment, chemical resistance, and a wide range of flow rates, pressures and options.

Premium ATEX pump engineered for use in potentially explosive environments

Energy efficient: superior efficiency resulting in reduced energy consumption and CO2 footprint.
Hygienic: designed according to the most stringent hygienic design standards and with verified effective CIP cleanability.
Maximized uptime and reduced maintenance costs: robust mechanical design and ease of maintenance with modular front-loading seals.
Conforms to the provisions of ATEX directive: can be used in potentially explosive environments.

Precision-engineered, the ATEX pump LKHex delivers greater energy efficiency than similar pumps. Its optimized design, premium motor, tight tolerances and advanced impeller design minimize recirculation and reduce energy consumption. The LKHex is engineered for use in potentially explosive environments and conforms to the provisions of the ATEX directive 2014/34/EU group II, category 2G, temperature class T3 and T4. With verified effective CIP cleanability, it is ideal for hygienic applications within the dairy, food, beverage and personal care industries that require gentle product treatment and reliable operation. The Alfa Laval LKHex pump is available in 10 sizes to handle capacities up to 250 m3/h and differential pressures up to 11 bar at 50 Hz.

Pump range

LKH centrifugal pumps are currently available in 13 sizes to handle capacities up to 500 m3/hour and pressures up to 190 H/(m). Options include types of shaft seals, flushing arrangements and elastomers.

LKHex for applications in explosive environments

Engineered for use in potentially explosive environments, the LKHex is available in nine sizes and conforms to the provisions of ATEX directive 94/9/EC Group II, Categories 2 and 3.

LKH pump curves

LKH pump range, composite curve

Unique impeller design

The semi-open impeller with a special vane design ensures particularly low NPSHr (Net Positive Suction Head required). This helps prevent cavitation and minimizes the risk of mechanical damage.

Balance holes in the impeller enhance circulation around the shaft seal and reduce axial forces. This minimizes wear on the shaft seal and motor bearings.

External shaft seal

The front-loading shaft seal, with the spring and washers mounted on the atmospheric side, makes maintenance fast, easy and inexpensive. It takes just a few minutes to replace the shaft seal. In addition, the balanced design minimizes the risk of seal opening during unforeseen pressure shock.

Optimised shaft seal

One shaft seal fits a wide pump range. The exact same LKH single shaft seal fits 11 models of LKH pumps as well as all models of the SolidC pump. The LKH seal also has the option of single or double flushed, which can be interchanged in minutes with just a few extra components.

This standardization reduces inventory and makes wear parts replacement quick and easy.

Compression couplings

Another notable feature is the compression coupling. This securely attaches the stub shaft to the motor shaft with precision alignment. Setup is simple, operations secure and noise and vibration minimized. What’s more, the coupling helps prolong the service life of both shaft seal and motor.

Close at Hand catalogue

The hygienic equipment product catalogue "Close at hand" includes product leaflets, links to animations, brochures and lists for ordering purposes.

Find an Alfa Laval product

CAD portal

The Alfa Laval CAD portal is an essential platform for downloading detailed product information, 2D drawings and 3D product models.

Visit the CAD portal

Services

How can we help you? Please contact us with any queries or questions.

Visit the Application & Innovation Center

Application and Innovation Centre_Kolding_Customer test centre_640x340x2.png

Do you want to identify the optimal equipment for the job and discover tangible savings before deciding on upgrades? In the Alfa Laval Application & Innovation Center, you can do just that.

Learn more

Optimize™ by Alfa Laval

Optimize™ by Alfa Laval boosts your existing processes and enables up to 90% savings on water, energy and chemicals with only small and no-risk investments.

Alfa Laval LKH centrifugal pumps – change flushed shaft seal

Alfa Laval LKH centrifugal pumps double mechanical shaft seal

Alfa Laval Service Kits

Alfa Laval LKH centrifugal pumps – change single shaft seal

Part of a broad pump range

Alfa Laval offers a comprehensive range of pumps intended for hygienic applications in the dairy, food, beverage,home care and personal care.

Alfa Laval offers a comprehensive range of pumps intended for UltraPure applications in the biotechnology and pharmaceutical industries.

For a broader pump range, explorer the differentproduct categories: Cirumferential piston pumps and Rotary lobe pumps.

Food Logic

Alfa Laval's hygienic equipment combines high performance with gentle handling to preserve sensitive ingredients. Keeping up with the food industry trends and addressing four key challenges; supplying food products to consumers at a competitive price, getting the most from raw materials, reducing waste and emissions, and delivering safe and hygienic food products.