Grundfos MAGNA1 User Manual

Appendix
26
3. Forces and moments
Maximum permissible forces and moments from the pipe connections acting on the pump flanges or threaded connections are indicated
in fig 7.
Fig. 7 Forces and moments from the pipe connections acting on the pump flanges or threaded connections
* The values also apply to pumps with threaded connection.
The above values apply to cast-iron versions. For stainless-steel versions, the values can be multiplied by two according to the
ISO 5199 standard.
4. Tightening torques for bolts
Recommended tightening torques for bolts used in flanged
connections:
TM05 5639 4012
Force
[N]
Moment
[Nm]
Diameter DN Fy Fz Fx ΣFb My Mz Mx ΣMb
25* 350 425 375 650 300 350 450 650
32* 425 525 450 825 375 425 550 800
40 500 625 550 975 450 525 650 950
50 675 825 750 1300 500 575 700 1025
65 850 1050 925 1650 550 600 750 1100
80 1025 1250 1125 1975 575 650 800 1175
100 1350 1675 1500 2625 625 725 875 1300
Bolt dimension Torque
M12 27 Nm
M16 66 Nm

Grundfos MAGNA1 Specifications

General

Pump Type	Circulator Pump
Flow Range	0.5 - 12 m³/h
Maximum Flow	12 m³/h
Maximum Head	10 m
Maximum Liquid Temperature	110°C
Maximum Operating Pressure	10 bar
Power Supply	230 V, 50/60 Hz
Enclosure Class	IP42
Insulation Class	F
Pump Housing	Cast Iron
Installation Length	180 mm
Series	MAGNA1
Energy Efficiency Class	A
Liquid Temperature Range	2°C to 110°C
Approvals	CE, EAC
Ambient Temperature Range	0 .. 40 °C