Alfa Laval LKH UltraPure Centrifugal pumps

Introduction

The Alfa Laval LKH UltraPure Centrifugal Pump is designed for

use in high-purity applications where high efficiency,

exceptional cleanability, contamination safety, robust design

and low maintenance are of paramount importance. With

verified cleanability, these pumps provide unobstructed

product flow, very low NPSH requirements and excellent

hydraulic efficiency.

Precision-engineered, the LKH UltraPure 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 Alfa Laval LKH UltraPure pump is designed to meet the

stringent demands and regulations of high-purity applications

across the biotechnology and pharmaceutical industries which

require equipment with the highest material integrity.

All pumps are delivered with a complete Alfa Laval Q-doc

package. Q-doc provides easier validation, proof of origin and

compliance for inspection according to Good Manufacturing

Practice (GMP) and ASME BPE requirements.

The LKH UltraPure pump is available in eight sizes to handle

capacities up to 275 m3/h and differential pressures up to 10

bar at 50 Hz.

Benefits

• Energy efficient: superior efficiency resulting in reduced

energy consumption and CO2 footprint.

• Maximized uptime and reduced maintenance costs: robust

mechanical design and ease of maintenance with modular

front-loading seals.

• Low contamination risk: comes with full material

traceability and USP Class VI elastomers to reduce risk of

process contamination from extractables.

• Smooth qualification, validation and process control:

material traceability, and pump supplied with the Alfa Laval

Q-doc package in line with Good Documentation Practice

(GDP).

Standard design

All media contacting steel components like pump casing,

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

316L) with material traceability 3.1 according to EN 10204.

Product wetted elastomers are specified to USP Class VI,

121°C, Chapter 88 and Chapter 87. A stainless steel shroud

protects the 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 LKH UltraPure 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.