Sulzer VMS - Mounting a Motor on the Pump

20 Installation, Operating and Maintenance Instructions (Original Instructions)
VMS Vertical Multistage Pumps
20
7.2 Mounting a motor on the pump
ATTENTION! It is to be advised to use a special designed Sulzer motor. Before installing another
brand/standard IEC-norm motor, Sulzer has to be consulted to judge the applicability.
The following motor specications are required:
• Increased power output (when applicable).
• Reinforced bearing at driven end (to withstand the axial force).
• Fixed bearing at driven end (to minimize the axial play).
• Smooth shaft, no key way (to improve the coupling grip and to improve the motor balance).
The advised bearings per motor type are:
Table 13. Minimum required driven-end motor bearing
Power output [kW] 1-phase 50 Hz 3-phase 50/60 Hz
2 pole 4 pole
0.25 6202-2Z-C3
0.37 6202-2Z-C3 6203-2Z-C3 6202-2Z-C3
0.55 6202-2Z-C3 6203-2Z-C3 6202-2Z-C3
0.75 6204-2Z-C3 6204-2Z-C3 6202-2Z-C3
1.1 6204-2Z-C3 6204-2Z-C3 6205-2Z-C3
1.5 6305-2Z-C3 6305-2Z-C3 6205-2Z-C3
2.2 6305-2Z-C3 6305-2Z-C3 6206-2Z-C3
3.0 6306-2Z-C3 6206-2Z-C3
4.0 6306-2Z-C3 6208-2Z-C3
5.5 6308-2Z-C3 6208-2Z-C3
7.5 6308-2Z-C3 6208-2Z-C3
11.0 7309
15.0 7309
18.5 7309
22.0 7311
30.0 7312
37.0 7312
45.0 7313