UL diesel engine fire pump, there are many structural types of diesel engine fire pump, among which, the external mixing type, on the other hand, the water discharged into the air-water separation chamber by the impeller flows back to the outer edge of the impeller through the left and right return holes. The equipped fire pump (single-stage single-suction type, single-stage double-suction type, segmental multi-stage type) can be divided into three sub-series, XBC-IS, XBC-S, XBC-D, etc., with a wide range of equipment pressure and flow. , its application can meet almost all kinds of occasions required for fire protection.