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Installation and operating instructions Wilo-Stratos MAXO/-D/-Z 37
StratosMAXO, StratosMAXO-D, StratosMAXO-Z Tightening
torques
50/0,5-14; 50/0,5-16;
65/0,5-12; 65/0,5-16;
80(100)/0,5-6; 80(100)/0,5-12; 80/0,5-16
18–20Nm
Table3: Tightening torques
Flange-end pump PN6
DN32 DN40 DN50
Screw diameter
M12 M12 M12
Strength class
≥4.6 ≥4.6 ≥4.6
Tightening torque
40Nm 40Nm 40Nm
Screw length
≥55mm ≥55mm ≥60mm
DN65 DN80 DN100
Screw diameter
M12 M16 M16
Strength class
≥4.6 ≥4.6 ≥4.6
Tightening torque
40Nm 95Nm 95Nm
Screw length
≥60mm ≥70mm ≥70mm
Table4: Flange fixation PN6
Flange-end pump PN10 and PN16 (no combination flange)
DN32 DN40 DN50
Screw diameter
M16 M16 M16
DN32 DN40 DN50
Strength class
≥4.6 ≥4.6 ≥4.6
Tightening torque
95Nm 95Nm 95Nm
Screw length
≥60mm ≥60mm ≥65mm
DN65 DN80 DN100
Screw diameter
M16 M16 M16
Strength class
≥4.6 ≥4.6 ≥4.6
Tightening torque
95Nm 95Nm 95Nm
Screw length
≥65mm ≥70mm ≥70mm
Table5: Flange fixation PN10 and PN16
Never interconnect 2combination flanges.
5.6 Insulation
WARNING
Hot surface!
The entire pump can become very hot. When retro-
fitting the insulation during normal operation there is
a risk of burns!