The so-called “half pipe” or “half coil” techniques are among the methods used to bring heat to a vessel. They consist of half pipes in the form of a spiral welded to the vessel so the hot water flowing through these half pipes can heat the vessel. The half pipe method is regularly used at Deprest in addition to the “bain marie” method (for double jacketed or, more often, triple-jackted vessels)
The enclosed photos show projects currently in production.
As you can see, the half-pipe method is also used for the head.
Peter Depraetere
