Alfa Laval LKHex Centrifugal pumps

Introduction

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.

Precision-engineered, the LKHex pump delivers greater energy

efficiency than similar pumps. Its optimized design, premium

motor, tight tolerances and advanced impeller design minimize

recirculation and reduce energy consumption.

Applications

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.

Benefits

• 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.

Standard design

All media contacting steel components like pump casing,

impeller, impeller nut and backplate are in W. 1.4404 (AISI 316L).

A stainless steel shroud protects the explosion proof motor and

four adjustable stainless steel legs support the complete unit.

A compression coupling securely attaches the stub shaft to the

motor shaft with precision alignment, and the semi-open impeller

with a special vane design ensures efficient and gentle handling

of the product as it moves through the pump.

As standard, the LKHex pump is equipped with a single

mechanical shaft seal, but is also available with a double

mechanical 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.