Bryan - Model BE Series - Electric Water and Steam Boilers
For low to medium range applications. compact, completely packaged and wired units with automatic controls and incoloy sheathed elements. input power requirement: 30-390 kw, 460 or 480 volt, 3 phase, 30-195 kw, 208 or 240 volt, 3 phase; or 15-120 kw, 240 volt, 1 phase. output: 98,000 btuh (at 30 kw input) to 1,280,000 btuh (at 390 kw input). hot water and steam models available.
Bryan Series BE electric hot water** or steam boilers are compact, completely packaged and wired units with automatic controls 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% efficient at all load levels. Varying loads do not effect the efficiency 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 field 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 flange.
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.