Grundfos CR User Manual

English (US)
16
8.9 Flange forces and torques
If not all loads reach the maximum permissible value stated in the
tables after fig. 10, one of these values may exceed the normal
limit. Contact Grundfos for further information.
Fig. 10 Flange forces [F] and torques [M]
Force limits
Torque limits
TM04 0346 2013
Y-direction: Inlet/outlet
Z-direction: Direction of chamber stack
X-direction: 90 ° from inlet/outlet
Flange Pump
CR -
Cast iron pump housing
CRI, CRN -
Stainless steel pump housing
ANSI
[in]
DN
[mm]
Type
Force,
Y-direction
[lb]
Force,
Z-direction
[lb]
Force,
X-direction
[lb]
Force,
Y-direction
[lb]
Force,
Z-direction
[lb]
Force,
X-direction
[lb]
1/
1 1/4
25/32 1s-5 76 89 72 152 177 143
1 1/2 40 10 93 105 84 185 211 169
2 50 15, 20 127 131 114 253 261 228
2 1/2 65 32 156 177 143 312 354 287
3 80 45 211 173 190 421 346 379
4 100 64 282 228 253 565 455 506
Flange Pump
CR -
Cast iron pump housing
CRI, CRN -
Stainless steel pump housing
ANSI
[in]
DN
[mm]
Type
Torque,
Y-direction
[ft-lb]
Torque,
Z-direction
[ft-lb]
Torque,
X-direction
[ft-lb]
Torque,
Y-direction
[ft-lb]
Torque,
Z-direction
[ft-lb]
Torque,
X-direction
[ft-lb]
1/
1 1/4
25/32 1s-5 221 129 92 443 258 184
1 1/2 40 10 295 203 148 590 406 295
2 50 15, 20 332 240 184 664 479 369
2 1/2 65 32 369 258 221 738 516 443
3 80 45 240 295 406 479 590 811
4 100 64 277 350 461 553 701 922

Grundfos CR Specifications

General

Impeller Material	Stainless steel
Type	Centrifugal Pump
Temperature Range	+120 °C
Material	Stainless Steel
Applications	Water supply, pressure boosting, cooling systems
Connections	Flanged