The names "REKULUVO" (recuperative air pre-heater) and "REKUGAVO" (recuperative gas pre-heater) describe two highly efficient, fully welded plate heat exchangers for gaseous products, working according to the countercurrent principle. This system achieves very high heat recovery rates.
The heat transfer surfaces consist of profiled plates with a high specific capacity which are welded together into self-supporting packs. Both gases flow through the plates in countercurrent and are separated from each other without leakage. Mixing of the two gas streams is thus almost completely excluded.