Our spirial pipe which are machined as a shape of the more heat efficiency with our own high quality pipes to be used for a heat exchanger.
The heat transfer area of our spirial pipe is large, and can a heat conduction effect more than three(3) times of the original circular pipes
by inducing vortex on inside and outside of pipe. So heat exchanger to be small under the same heat requirement.
The thermal stress in accordance with temperature variation to be sorbed by a spirial pipe itself.
So the fixed tube-plate type construction can be possible without a leakage.
A pollutants to be removed itself by turbulence phenomenon which are occurred by the unique shape of a spirial
on inside and outside of pipe, and an inside and outside of pipe are always keeping a clean heating area.