Bryan - Model BH Series - Electric Water and Steam Boilers
Electric hot water boilers and electric steam boilers for medium to high capacity applications. Heavy steel pressure vessel. Horizontal or vertical configuration. Incoloy sheathed heating elements, in 208, 240, 460, 480 or 575 volt. Units rated from 60 to 3,000 KW input, 196 MBH to 9,828 MBH output. Hot water, high temperature hot water, steam and high pressure steam models.
Bryan Series BH Electric hot water** or steam boilers are compact, completely packaged and wired units with automatic controls and featuring long life Incoloy sheathed elements. Applications include hot water heating, steam heating, process heating, and supplemental heat for heat pump type equipment. All Bryan Boilers are built in accordance with the requirements of the ASME boiler and pressure vessel code and are UL listed. Water boilers are 150 psig MAWP and steam boilers either 15 psig or 150 psig. Higher pressures are available.
Bryan Electric Boilers are nearly 95% effi cient at all load levels. Varying loads do not effect the effi ciency since the resistive type heating elements are immersed and designed to heat the water directly. With a modulating step control only the elements that are required to heat the water to the desired temperature/ pressure will be energized in order to encourage a balanced load during operation.
Each element hairpin is fi eld replaceable with no welding, soldering, or brazing required. Each hairpin, as standard for all Bryan Electric Boilers, is Incoloy sheathed and industrial size 0.430 diameter. Elements are designed for 75 watts/sq. inch for long life (optional 50 W/D available). Elements are individually installed in a standard ANSI 150 lb. blind fl ange.
Steam Disengaging Area
Steam release area is near the middle of the horizontal vessel for maximum steam disengaging area for dry steam and stable water level.
Water Boiler Design
Vessel is designed for proper circulation around individual elements to maximize heat transfer. High velocities, i.e. heat pump applications, are handled with very little pressure drop when using a horizontal tank for the pressure vessel. Supply and return nozzle sizes can be made larger to accommodate the flow requirements. Pressure drop is minimal through the boiler and no dangers are involved with low fl ow conditions.