1、 采用先进水力模型，径向剖分节段式结构，穿杠将吸入段、中段、吐出段等连成一体。
With advanced hydraulic model and radial direction sectional structure, tie bolt connects suction casing, connecting piece and discharge casing, etc.
2、 鼓盘鼓平衡机构及推力轴承，可有效平衡轴向力。
With drum disc balancing mechanism and thrust bearing, axial force can be effectively balanced。
3、 轴承架为带散热片的铸钢件，采用新型非金属同步甩油环，配有恒位恒压油杯，润滑更加充分、稳定。
The bearing support is steel coasting with cooling fin. With new-type non-metal synchronic oil slinger and constant position and voltage oil cup, the lubricating is further sufficient and stable.
4、 加强刚性轴（锻造）设计，管口按API标准三倍载荷设计，采用API标准底座，确保运转安全、稳定、可靠。
To strengthen rigid axial design, pipe orifice is designed according to API standard triple load. API standard chassis is adopted to ensure safe, stable and reliable operation.
5、 加厚壳体设计，符合API要求的3mm腐蚀余量。
With thickened casing design, it meets 3mm corrosion allowance according to the requirement of API.
6、 按API682标准密封腔设计，采用集装式机械密封。
With design implemented according to API682 standard seal cavity, packaging mechanical seal.
7、 根据工况需要，进出口方向任意可调，轴承箱体可增加水冷盘管或风扇冷却，吸入口可加诱导轮或改为双吸叶轮。
Direction of inlet and outlet can be randomly adjusted according to the demands of working conditions water-cooling coil pipe or fan cooing can be increased for bearing casing. Inducer can be added to suction inlet or it can be changed into double-suction impeller.
8、 XBB4C - 化工泵，过流部件有多种材质可选，满足中性及强腐蚀介质输送需要。
XBB4C-chemical pump, many materials can be selected for flow passage components to satisfy the transportation demands of neutral and strong corrosion medium.
XBB4D- 精锻离心油泵，吸入段、中段、吐出段等均为精密锻造，并三次热处理保证良好的工艺性能，满足高温高压工况使用需要；
XBB4D- precisely forged centrifugal oil pump, suction casing, connecting piece and discharge casing are precisely forged. Besides, through heat treatment for three times, good processing property is ensured to satisfy application demands under high-temperature and voltage working condition;
XBB4G- 锅炉给水泵，吸入段、中段、吐出段之间金属面密封，两端滑动轴承支承，通过循环水冷却；
XBB4G-boiler feed pump, metal face is used for sealing suction casing, connecting piece and discharge casing. With sliding bearing support at two ends, it passes through cooling of circulating water;
XBB4P-自平衡型，叶轮背靠背对称布置，可使残余轴向力降到最低，大大提高运行稳定性；
XBB4P-self-balancing type, impellers are back-to-back arranged. Thus, residual axial force can be reduced to the minimum and operation stability can be greatly enhanced;
性能参数Performance parameters：
流量Flow quantity：～600m3/h
扬程Lift ：～2500m
工作压力Working pressure：20MPa
工作温度Working temperature：-80℃～+450℃
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