Technical Data; Motor; Gearbox; Shaft Seals - Grundfos AMG Series Installation And Operating Instructions Manual

11. Technical data

11.1 Motor

Protective
IP68 to 20 m
system
Insulation
F
class
Radial shaft seal ring/mechanical
Sealing
shaft seal
Material,
motor hous- Cast iron, grade 25 (EN-GJL-250)
ing

11.2 Gearbox

Type Planetary
Gears Hardened and ground steel
Seal moni- Leakage sensor incorporated in gear-
toring box
Drive end
Two tapered roller bearings
bearings
Material,
Cast iron, grade 25 (EN-GJL-250)
gear casing

11.5 Propeller

Number of blades
Propeller diameter
Material, hub
Material, propeller

11.6 Sound pressure level

The sound pressure level of the mixer or flowmaker is
lower than 70 dB(A).
AMG AFG.xx.130
2
400-1000 mm 1340 mm
Polyurethane with
Stainless steel
stainless steel hub

11.3 Shaft seals

Sealing against leakage
Two lip seals and one mechanical shaft seal made
of tungsten carbide/tungsten carbide or SiC/SiC

11.4 Operating conditions

Continuous operation
The mixers and flowmakers are designed for
continuous operation.
Intermittent operation
It is mandatory to start the flowmakers by
a soft starter or a frequency converter.
The mixer or flowmaker must always be submerged
during operation.
AFG.xx.150
2
1500, 1800, 2300, 2600 mm
Stainless steel
Polyurethane with cast-iron reinforcement
AFG.xx.230-260
2 or 3
Cast iron (EN-
GJS-400-15)
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