Flange Forces And Torques - Grundfos CR Serie Instrucciones De Instalación Y Funcionamiento

6.6 Flange forces and torques

If not all loads reach the maximum permissible value stated in the
tables below, one of these values may exceed the normal limit.
Contact Grundfos for further information.
Fig. 14 Flange forces and torques
Y-direction: Inlet/outlet
Z-direction: Direction of chamber stack
X-direction: 90 ° from inlet/outlet
Forces
The following tables represent values that applies according to
the material quality.
Force limits for CR cast-iron pump housing
25/32 1s-5
40 10
50 15 and 20
65 32
80 45
100 64 and 90 1256
125/150 120 and 150 1256
Torque limits to CR cast-iron pump housing
25/32 1s-5
40 10
50 15 and 20
65 32
80 45
100 64 and 90
125/150 120 and 150
338 394 319
413 469 375
563 581 506
694 788 638
938 769 844
1013 1125
1013 1125
300 175 125
400 275 200
450 325 250
500 350 300
325 400 550
375 475 625
375 475 625
Force limits for CRI, CRN stainless-steel pumps housing
25/32 1s-5 675
40 10 825
50 15 and 20 1125
65 32 1388
80 45 1875
100 64 and 90 2513
125/150 120 and 150 2513
Torque limits to CRI, CRN stainless steel pump housing
25/32 1s-5 600
40 10 800
50 15 and 20 900
65 32 1000
80 45 650
100 64 and 90 750
125/150 120 and 150 750
788 638
938 750
1163 1013
1575 1275
1538 1688
2025 2250
2025 2250
350 250
550 400
650 500
700 600
800 1100
950 1250
950 1250
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