14
TORQUE VALUES
Pump Size Tie Rod Nuts Vent and Drain
1SV 22 lbs ft (30 N .m) 15 lbs ft (20 N .m)
2SV 22 lbs ft (30 N .m) 15 lbs ft (20 N .m)
3SV 37 lbs ft (50 N .m) 15 lbs ft (20 N .m)
4SV 37 lbs ft (50 N .m) 15 lbs ft (20 N .m)
33, 46, 44 lbs ft (60 N .m) 29 lbs ft (40 N .m)
66, 92SV
11. System head too high.
12. NPSHA too low – excessive suction lift or losses.
13. Discharge head too low – excessive flow rate.
14. Fluid viscosity, specific gravity too high.
15. Worn bearing.
16. Pump, motor or piping loose.
TORQUE VALUES
HP Motor Motor Bolt Adapter Flange Coupling
Frame 1-4SV 33-92SV
¾ 56C 20 lbs ft (27 N .m) – 15 lbs ft (20 N .m)
1 56C 20 lbs ft (27 N .m) – 15 lbs ft (20 N .m)
1½ 56C 20 lbs ft (27 N .m) – 15 lbs ft (20 N .m)
2 56C 20 lbs ft (27 N .m) – 15 lbs ft (20 N .m)
3 56C 20 lbs ft (27 N .m) – 15 lbs ft (20 N .m)
5 184TC 20 lbs ft (27 N .m) – 15 lbs ft (20 N .m) 37 lbs ft (50 N .m)
7½ 184TC 20 lbs ft (27 N .m) – 15 lbs ft (20 N .m) 37 lbs ft (50 N .m)
10 213TC 45 lbs ft (61 N .m) 30 lbs ft (40 N .m) 30 lbs ft (40 N .m) 48 lbs ft (65 N .m)
215TC
15 215TC 45 lbs ft (61 N .m) 30 lbs ft (40 N .m) 30 lbs ft (40 N .m) 48 lbs ft (65 N .m)
254 TC 48 lbs ft (65 N .m) 48 lbs ft (65 N .m)
20 254TC 45 lbs ft (61 N .m) 48 lbs ft (65 N .m) 48 lbs ft (65 N .m) 48 lbs ft (65 N .m)
256TC
25 256TC 45 lbs ft (61 N .m) 48 lbs ft (65 N .m) 48 lbs ft (65 N .m) 48 lbs ft (65 N .m)
284TC
30 284TC 45 lbs ft (61 N .m) 48 lbs ft (65 N .m) 48 lbs ft (65 N .m) 48 lbs ft (65 N .m)
286TC
40 284TC 45 lbs ft (61 N .m) 48 lbs ft (65 N .m) 48 lbs ft (65 N .m)
286TC
50 324TSC 45 lbs ft (61 N .m) 48 lbs ft (65 N .m) 48 lbs ft (65 N .m)
326TSC
60 326TSC 45 lbs ft (61 N .m) 48 lbs ft (65 N .m) 48 lbs ft (65 N .m)
364TSC
75 365TSC 45 lbs ft (61 N .m) 48 lbs ft (65 N .m) 48 lbs ft (65 N .m)
NOTE: Discharge loop must be high enough to keep liquid in the bottom stages during shut-down.