Grundfos NB Installation And Operating Instructions Manual page 46

Appendix B
B.1. Flange forces and torques
Flange forces and torques
Cast iron flanges Diameter DN
100
Horizontal
125
pump, x-axis, inlet
150
port
200
250
300
350
400
450
500
46
Force [N]
Fy Fz
25 245 298
32 298 368
40 350 438
50 473 578
65 595 735
80 718 875
945 1173
1120 1383
1418 1750
1890 2345
2700 3460
3220 4000
3760 4660
4300 5320
4840 5980
5380 6640
1)
Fx ΣF My
263 455 210
315 578 263
385 683 315
525 910 350
648 1155 385
788 1383 403
1050 1838 438
1243 2170 525
1575 2643 613
2100 3658 805
2980 5220 1260
3580 6260 1720
4180 7300 2200
4780 8340 2760
5380 9380 3400
5980 10420 4100
Torque [N-m]
1)
Mz Mx ΣM
245 315 455
298 385 560
368 455 665
403 490 718
420 525 770
455 560 823
508 613 910
665 735 1068
718 875 1278
928 1138 1680
1460 1780 2620
1980 2420 3560
2540 3100 4560
3180 3880 5720
3920 4780 7040
4720 5780 8520