ViscoLine™ Multipass Unit The tubular heat exchanger series from Alfa Laval Applications The ViscoLineTM Multipass unit is ideal for small flows and for the heating, cooling and pasteurization of products with low and average viscosity and containing fibres and small particulates. Standard design The ViscoLine Multipass unit consists of a bundle of tubes mounted inside an outer shell. The inner tubes are arranged to allow two, three and six passes inside the shell by means of flow distribution headers at each end of the unit. The product medium flows inside the bundled tubes, and the service medium outside. If required, the product tube is available with a corrugated surface featuring either hard or dimple patterns. The service media shell is made of a hard, corrugated material. The only spare part needed is one gasket in each header. Standard materials Other materials are available on request. 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) ViscoLine MultiPass with open sectional view Graphic representation of the flow pattern in the ViscoLine MultiPass Unit.
Open the catalog to page 1Technical data Mechanical design pressure The ViscoLine Multipass 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 Multipass 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 for a temperature of 140°C (284°F). All units are provided with...
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