Compared with previous fire pumps, XBDseries features a reduced outlet pressure difference among pumps of the same quantity of flow, as small as 0.05MPaonly. Thanks to increased spectrum density and more reasonable distribution, this series is better adapted to fire fighting needs at different floors and to pipe resistance, and makes itself a better choice in design. The products of XBDseries have reached the leading level and feature a small footprint, light weight, low noise, high performance, reliable operation and other advantages.