• 4 pass horizontal boilers designed.
• 300BHP-1650BHP output (5ton/hr-25tonihr).
• Standard maximum working pressure is 1_0 MPa or 1.25 NIPa.
• Optional 4 pass, wet-back, corrugated design maximizes boiler efficiency.
• Seamless tubes thicker than the competitors’.
• Welded tubes avoids the problem of leaking caused by shipping normally seen in the rolled tubes.
• Light oil, heavy oil, natural gas or dual fuel options.
• Low NOx emission.

4 pass design for optimum efficiency
Fulton’s FB-C/FB-D boilers’ four pass design adds additional heating surface to the traditional three pass, which further enhances the heat exchange between the flue gas and boiler water. This four pass design plus the fully matched IC burner achieve the optimum efficiency for FB-CIFB-D boilers.

Wet-back and corrugated furnace design
4 pass FB-C and FB-D boilers all have the wet-back and corrugated furnace design feature. The corrugation of the furnace provides additional heat transfer surface. It also reinforces the strength of the combustion chamber and increases the longevity of the pressure vessel. Corrugation greatly reduces the thermal and mechanical fatigue caused by cyclic expansion and contraction. Wet­back design eliminates the need for refractory lining, baffles, and gaskets and provides additional heating surface.