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Alfa Laval
ViscoLine Multitube Unit

ViscoLine Multitube Unit

Product catalog summary

Applications
The ViscoLine™ Multitube unit is designed for heating, cooling, and pasteurization of products with low to average viscosity, including those with fibers and small particulates. It is suitable for a variety of products such as milk, water, egg products, fruit purées, juices, beer mash, tomato juice, protein solutions, yeast, and soft drinks.

Standard Design
The unit consists of a bundle of tubes within an outer shell, with product flowing inside the tubes and service medium around them. The flow is counter-current to enhance efficiency. Tubes can have corrugated surfaces to improve heat transfer. The design is maintenance-free, eliminating the need for spare parts.

Materials
Product tubes are made from stainless steel AISI 316L or SMO254, while the service shell uses AISI 304 or AISI 316. The frame is also stainless steel AISI 304, with options for self-draining configurations.

Technical Data
The unit is designed for 25 bar pressure on the product side and 10 bar on the service side, with the capability to handle higher pressures. It operates at temperatures up to 140°C and complies with the European Pressure Equipment Directive (PED), bearing the CE mark.

Connections
Various connection types are available, including SMS, ISO, clamp, flange, and ANSI connections for both product and service sides.

Options
Additional features include concentric reducers, double tube sheets, roller-expanded tubes, seamless inner tubes, protection sheets, and thermal insulation.

Measurements and Specifications
The document provides detailed measurements for various models, including tube and shell diameters, module lengths, volumes, and heat transfer areas. For example, the VLM3x16/51-3.0 model has 3 tubes with a 16 mm diameter, a 51 mm shell diameter, a 3.0 m module length, and a heat transfer area of 0.45 m².

Contact Information
For more details, contact Alfa Laval through their website at www.alfalaval.com.

Catalog excerpts

ViscoLine™ Multitube Unit The tubular heat exchanger series from Alfa Laval Applications The ViscoLineTM Multitube unit is ideal for the heating, cooling and pasteurization of products with low and average viscosity, and products that contain fibres and small particulates. These units are used in conjunction with a wide range of products, including milk, water, yellow fats, whole egg, egg white, egg yolk, fruit purée, baby food, many kinds of fruit juices containing pulp, fruit concentrates, beer mash, tomato juice and nectar, protein solutions, yeast and soft drinks. Standard design The ViscoLine Multitube unit consists of a bundle of tubes mounted inside an outer shell, and welded onto tube plates at both ends. The product medium flows inside these tubes, and the service medium between and around them. All the product tubes are connected in parallel and so that the flow is counter-current in relation to the service medium. If required, these product tubes can feature a corrugated surface with either hard or dimple patterns. The service media shell is hard corrugated. ViscoLine Multitube modules are normally connected in series and grouped on a common frame. The eccentric reducers can be welded, clamped or flanged. The tube plates have a conic tube hole to ease the flow of the product inside the tubes. The installation is maintenance free, thus eliminating any need for spare parts. Standard materials Other materials are available on request. ViscoLine Multitube with open sectional view, hard corrugated Graphic representation of the flow pattern in the ViscoLine Multitube Unit. Product side (tubes) Stainless steel AISI 316L or SMO254 Service side (shell) Stainless steel AISI 304 or AISI 316 Frame Stainless steel AISI 304 (units can be angled for self-draining on request)

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Technical data Mechanical design pressure The ViscoLine Multitube Unit was designed for a pressure of 25 bar (363 PSI) on the product side (tubes) and 10 bar (145 PSI) on the service side (shell), depending on the connection. The unit can, however, accommodate higher pressure ratings, depending on component thickness and connection type. The ViscoLine Multitube unit complies with the European Pressure Equipment Directive (PED), and is entitled to bear the CE mark, though depending on the design of the connections. It is designed to operate at a temperature of 140°C (284°F). All units are provided...

Open the catalog to page 2

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