Grundfos Submersible wastewater pump SMG.48.73 .306.5.1B

The Grundfos range of horizontal, planetary gear drive SMG mixers are designed for mixing, i.e. homogenisation and suspension of low/medium viscosity liquids. Fitted with motors of 0.9-18.0 kW.

The Grundfos range of horizontal submersible SMG mixers is designed for applications involving the mixing, i.e. the
homogenisation and suspension, of low- to medium-viscosity liquids.
The mixers are equipped with a gearbox and an energy-efficient propeller.
The squirrel-cage induction motor is protected against overload by means of three bimetallic thermal switches (PTO)
in the motor windings.
The products are equipped with IE3 motor components .
To prevent ingress of the surrounding liquid, the SMG mixers have two radial FKM rubber lip seals together with a
ceramic wear ring
and a mechanical shaft seal made of silicon carbide/silicon carbide or tungsten carbide/tungsten carbide, depending
on size.
The secondary seal between the gearbox and the motor is made of carbon/aluminium oxide.
The oil-filled gearbox is monitored for the ingress of water by a leak sensor incorporated as standard in the gearbox.
The sensor can trigger an alarm signal and/or switch off the motor by means of an external Grundfos relay type
ALR-20/A.
The gearbox incorporates tapered roller bearings absorbing the axial force from the propeller.
Motors range from 0.9 to 18.5 kW.
A wide range of accessories made of stainless steel AISI 304/316 ensures easy installation and long trouble-free
operation.

General information:
Product name: SMG.48.73 .306.5.1B
Product No: 98787786
EAN number: 5712601392143
Technical:
Thrust to power: 0.323
Axial trust force: 1600 N
Rated flow: 579 l/s
Mean velocity: 1.38 m/s
Propeller speed: 306 rpm
Tip speed: 11.7 m/s
Gear ratio: 4.830
Propeller diameter: 730 mm
Number of propeller blades: 2
Primary shaft seal: 2 RADIAL LIP SEALS
Curve tolerance: ISO9906:2012 3B
Materials:
Motor: AISI EN-GJL-250
Propeller: 1.4301
Hub: AISI 1.4301
Paint thickness: 450 micrometre
Secondary shaft seal: CARBIDE/CARBIDE
Installation:
Maximum installation depth: 20 m
Fits column profile tube, size: 100/100 mm
Liquid:
Liquid temperature range: 5 .. 40 °C
pH-value range: 4-10
Electrical data:
Power input – P1: 5.3 kW
Power input Act: 4.96 kW
Rated power – P2: 4.8 kW
Mains frequency: 50 Hz
Rated voltage: 3 x 400-415 V
Voltage tolerance: +6/-10 %
Rated current: 12 A
Starting current: 109 A
Cos phi – power factor: 0.67
Cos phi – p.f. at 3/4 load: 0.57
Cos phi – p.f. at 1/2 load: 0.44
Rated speed: 1468 rpm
Motor efficiency at full load: 89.8 %
Motor efficiency at 3/4 load: 88.5 %
Motor efficiency at 1/2 load: 85 %
Number of poles: 4
Start. method: Y/D
Enclosure class (IEC 34-5): IP68
Insulation class (IEC 85): H
Explosion proof: no
Built-in motor protection: PTO (THERMAL SWITCH)
Power cable type: S1BN8-F 11G2.5
Length of power cable: 10 m
Power plug: No plug
Controls:
Moisture sensor: N
Water-in-oil sensor: Y
Others:
Net weight: 161 kg