The tubular heat exchanger ViscoLine

The heat exchanger are most commonly used in conjunction with low acid products with average to high viscosity, such as tomato concentrate, banana paste, sourdough, chocolate sauce, mayonnaise, malt extract and tomato-based sauces in general.
The ViscoLine annular heat exchanger unit consists of four concentric tubes. The product medium flows in between two service channels, and is heated or cooled from the inside and outside at the same time.

The unit features easy, full inspection of the product side by removing the tube insert.

The outer shell is corrugated and the other three concentric tubes are not corrugated, smooth. If required, the product tube can be corrugated. ViscoLine annular heat exchangers are connected in series on product side and in parallel on water/service side and grouped on support frame or full frame.
The ViscoLine annular unit is designed for a pressure of 15 bar (217 PSI) on the product side (tubes) and 10 bar (145 PSI) on the service side (shell), depending on the connections. The unit can, however, accommodate higher pressure ratings up to 100 bar, depending on component thickness as connection
The ViscoLine annular unit complies with the European Pressure Equipment Directive (PED 2014/68/EU), and is entitled to bear the CE mark. Where the CE mark is not required, Viscoline would be manufactured according to Sound Engineering Practice (SEP). Other design codes are available as well such as ASME VIII Div.1 and others would be on request like SELO’s China Manufacturer License (SELO approval). It is designed to operate at a temperature of 190°C (374 °F) although higher temperatures are also met.