In this type of Exchanger, the special baffle geometry, cause the rotational movement of the fluid on the shell side and prevent the creation of dead points that are created behind normal segmental baffles. This type of movement causes that fluid sedimentation in the shell side area is much less than the other type for high viscosity fluid.

Therefore, the efficiency as well as heat transfer for Helix Heat Exchanger be higher than normal Heat Exchangers. The fabrication of this type of baffles is quite special because of the holes drilling where the tubes pass to be oval. Also, tube bundle assembly needs special procedure.