Grundfos AMG Serie Instrucciones De Instalación Y Funcionamiento página 33

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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