1、With axial direction and longitudinal intermediate structure, it is not necessary to dismantle outlet pipe for repair. Besides, with cone axis design of coupler end, it is convenient in equipment overhaul and maintenance.
2、Packaging-type mechanical seal is adopted according to seal design of API682 standard. It is convenient in installation and maintenance. The axial compression is free of influences of axial dimensions of any connecting pieces. It is not necessary to make adjustment.
3、The bearing support is steel coasting with cooling fin. With new-type non-metal synchronic oil slinger, it is further sufficiently lubricated and pollution of lubricating oil is reduced. With special bearing gland cover, dual requirements of oil mist and bath lubrication can be satisfied.
4、By optimizing axial structure and selecting ball-ball and sliding-ball and sliding-thrust bearing forms, the optimal support can be provided for parts of rotor and the cost for bearing and support system can be maximally reduced.
5、Pipe orifice is designed according to API standard twofold load. API standard chassis is adopted to ensure safe, stable and reliable operation.
6、With enhancement rigid stepped shaft (dead band can be used according to the requirement) optimized and designed according to hydraulic performance, power transmission requirement can be satisfied and rotor’s reliability can be enhanced and typical design scheme of API610 can be satisfied.
7、With back-to-back arrangement of impeller, pipeline and nockbush can be overall balanced
to optimize structural balance axial force.
8、双蜗壳结构形式,精密铸造叶轮,可保证最小水力径向力。
With double-volute structural form, precision cast impeller can guarantee minimum hydraulic
 radial force.
9、BB3-standard, single-suction impeller, back-to-back arrangement;
     BB3D-first-stage impeller with two-suction structure enhances
                   anticavitation capacity and reduces suction specific speed;