Why should you use corrugated tube heat exchangers?

What is a corrugated tube in heat exchangers?


SACOME has its own corrugation technology for the manufacturing of our corrugated tube heat exchangers. A corrugated tube is a pipe with a helical groove obtained from a plain tube by cold forming. The number of starts of the helix can be changed as well as the angle to optimize the heat transfer and performance.

Furthermore, the mechanical properties of the original plain tube are not reduced, being this recognized by TÜV. (Independent German certification company worldwide recognized).

We have developed our own corrugation technology
SACOME Corrugated Tube Heat Exchanger
Corrugated tube heat exchangers mounted on a frame

Advantages and main features of corrugated tube heat exchangers


Hygienic profile of corrugated tube heat exchangers


Similar drainability to a plain tube, as there are no dead zones.


Different corrugation geometries  for corrugated tube heat exchangers


HARD Corrugation. Allows to achieve a very high improvement of heat transfer coefficient which compensates the inherent increase in pressure loss.

SOFT Corrugation. Intermediate between smooth tube design and tube corrugation HARD improving heat transfer to a lesser extent, but with lower pressure drop.


Turbulent flow, that is achieved with lower Reynolds number that for smooth tubes


The greatest advantage of the corrugation is increasing fluid turbulence when flowing through the inner tube, which means that turbulent flow can take place even with a low Reynolds number. In fact, while for a smooth tube the transition regime between laminar and turbulent flow is around 2000-2500, in a corrugated tube this transition can be located close to Reynolds 500.


Comparing the Nusselt number between a corrugated tube and a smooth tube at different Reynolds




Higher heat transfer coefficients in corrugated tube heat exchangers


If you compare it to plain Shell and Tube Heat Exchangers.


SACOME corrugated tube heat exchangers


Lower exchange area in corrugated tube heat exchangers


In some cases half the required area with smooth tubes.


Homogeneus thermal treatment in corrugated tube heat exchangers


Due to the mixing capability enhanced by the corrugation.


Lower fouling in corrugated tube heat exchangers


Because of the self-cleaning effect provided by the higher turbulence levels.

How to avoid the fouling with corrugated tube heat exchangers

Shorter residence times of corrugated tube heat exchangers


Without stopping for cleaning, having a higher response to CIP.


Longer running times with corrugated tube heat exchangers


Without stopping for cleaning, having a higher response to CIP.

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