Grundfos 98798324 - SRG.270.31 .374.11.6.1H

GRUNDFOSSKU: 98798324

Price:
Sale price$43,370.00
Delivery date to be confirmed on Sales Order
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Description

SRG. 270. 31 . 374. 11. 6. 1H | The Grundfos range of horizontal submersible SRG recirculation pumps is designed for pumping return sludge in wastewater treatment plants and other applications where large flow rates are required at a low head. The recirculation pumps are equipped with a gear-driven energy-efficient impeller. 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 SRG recirculation pumps 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/aluminum oxide. The oil-filled gearbox is monitored for the ingress of water by a leak sensor incorporated as standard. The sensor can trigger an alarm signal and/or switch off the motor by means of an external Grundfos relay, type ALR-20/A, supplied as an optional accessory. The gearbox incorporates tapered roller bearings absorbing the axial force from the propeller. Motors range from 1. 1 to 32. 0 hp (0. 8 to 24. 0 kW). A wide range of accessories made of stainless steel AISI 304/316 steel ensures easy installation and long trouble-free operation.

EAN 5712601514804
Applications Wastewater
Motor efficiency at full load 1 0.923
Density 62.29 lb/ft³
Power factor 1 0.79
Rated voltage 3 x 460 V
Thermal protec PTO (THERMAL SWITCH)
Power input - P1 21.7 kW
Maximum installation depth 66 m
Cos phi - p.f. at 1/2 load 0.62
Maximum current consumption 0.62
Starting current 211 A
Pump outlet 0.62
Pump inlet 0.62
Connect code 0.62
Mains frequency 60 Hz
Insulation class (IEC 85) H
Cos phi - p.f. at 3/4 load 0.74
Motor efficiency at 1/2 load 0.916
Net weight 955.0 lb
Number of poles 4
Rated speed 1775 rpm
Start. method star/delta
Rated power - P2 20 kW
Enclosure class (IEC 34-5) IP68
Motor efficiency at 3/4 load 0.922
Rated current 36 A
Cable type H07RN-F 7G4+4X1
Voltage tolerance +10/-10 %
Explosion proof no
Type of cable plug NO
Length of cable 15 m
Moisture sensor without moisture sensors
pH-value range 45203
Max starts per hour 20
Water-in-oil sensor with water-in-oil sensor
Max flow 1310 l/s
Head max 1.95 m
Sens.interface 1.95 m
Valve type 1.95 m
Diameter 31.5 in
Pipework connection 1.95 m
Motor Cast iron
Number of leads 1.95 m
Length 1.95 m
Colour 1.95 m
Power 1 21.7 kW
Pressure retention valve 1.95 m
Approvals and markings 1.95 m
Flowrange 439 .. 1310 l/s
Maximum head 6.398 ft
Flow range 1.95 m
Battery back-up 1.95 m
Size 60/60 mm
Rated head 6.398 ft
Thickness 450 micrometre
Type H07RN-F 7G4+4X1
Head min 0.11 m
Min flow 439 l/s
Primary shaft seal 2X RADIAL LIP SEALS
Fits column profile tube, size 60/60 mm
Propeller speed 374 rpm
Standard ISO 9906
Propeller diameter 800 mm

Motor Curves

Dimensional Drawing

DWiring Diagram

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