Bosch's patented 3-pass technology dating back over 50 years forms the basis for the outstanding and ongoing success of the UNIVERSAL industrial steam boiler series. The flame tube (first pass) and two combined smoke tubes (second and third pass) are integrated with the wet back rear reversing chamber inside the pressure vessel. Within its compact dimensions, the flame tubes are positioned laterally and the horizontal rear and vertical front gas tubes produce a large heating surface.
If superheated steam is required instead of saturated steam, a superheater module can be positioned on the front reversing chamber. A bypass flap constantly controls the temperature of the superheated steam over a large load range.
Modular system-controlled on the flue gas side, no injection water required for temperature control of the superheated steam.
Easy maintenance and installation - simple cleaning of the second and third boiler pass.
Extensive product to low thermal loading of the heat exchanger.