Wet Back Firetube Boilers Manufacturers

Wet back fire tube boiler design has a water cooled turn around chamber, which is used to direct the flue gases from the furnace to the tube banks. It requires less refractory maintenance. However, internal pressure maintenance, such as, cleaning is more difficult. In addition, the wet back design is more prone to water side sludge buildup, because of the restricted flow areas near to the turn around chamber. This boiler is a cylindrical vessel, with the flame in the furnace and the combustion gases inside the tubes. The furnace and tubes are with in a vessel, which contains the water and steam. It ranges from 15 to 1500 horse power. These boilers are designed for 500 HP at maximum allowable working pressure of 150 psi.