GSZ | 3-phase / 50Hz

GSZ | 3-phase / 50Hz
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Three-phase drainage pumps, designed to pump large volumes of water. The spiral shape of the pump casing, an air & water channel around the motor & the air-release valve, all combine to provide smooth, anti-clog pumping.

Technical Data

  • ø Discharge bore mm: 150 - 250
  • Type of Fluid: Drainage,Sand/Slurry
  • Max. Solid Handling mm: 10 - 50
  • Max. dry matter %: 15
  • Max. PH Value: 5-9
  • Max. Capacity l/min: 4950 - 18000
  • Max. Head m: 21.50 - 60
  • Motor output kW: 22,0 - 150
  • Phase / Voltage: 3-phase / 400V / 50Hz
Performance curve
1
Specifications

Model Colour code curve ø Discharge bore mm Type of Fluid Max. Solid Handling mm Max. dry matter % Max. PH Value Max. Capacity l/min Max. Head m Motor output kW Phase / Voltage
GSZ10150 1 250 Drainage 25 15 5-9 18000 54.5 150 3-phase / 400V / 50Hz
GSZ2-55-4 2 250 Drainage 25 15 5-9 10700 47 55,0 3-phase / 400V / 50Hz
GSZ2-75-4
3
250 Drainage 25 15 5-9 12500 52 75,0 3-phase / 400V / 50Hz
GSZ2-75-4L
4
250 Drainage 25 15 5-9 17500 38 75,0 3-phase / 400V / 50Hz
GSZ4-45-4 5 200 Drainage 25 15 5-9 9100 46.2 45,0 3-phase / 400V / 50Hz
GSZ5-22-6 6 200 Sand/Slurry 50 15 5-9 9000 21.50 22,0 3-phase / 400V / 50Hz
GSZ5-37-4 7 200 Drainage 25 15 5-9 8400 44 37,0 3-phase / 400V / 50Hz
GSZ5-37-4H 8 150 Drainage 10 15 5-9 4950 60 37,0 3-phase / 400V / 50Hz
GSZ5-37-6 9 200 Sand/Slurry 50 15 5-9 10500 28.6 37,0 3-phase / 400V / 50Hz

ø Discharge bore mm 250
Type of Fluid Drainage
Max. Solid Handling mm 25
Max. dry matter % 15
Max. PH Value 5-9
Max. Capacity l/min 18000
Max. Head m 54.5
Motor output kW 150
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 250
Type of Fluid Drainage
Max. Solid Handling mm 25
Max. dry matter % 15
Max. PH Value 5-9
Max. Capacity l/min 10700
Max. Head m 47
Motor output kW 55,0
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 250
Type of Fluid Drainage
Max. Solid Handling mm 25
Max. dry matter % 15
Max. PH Value 5-9
Max. Capacity l/min 12500
Max. Head m 52
Motor output kW 75,0
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 250
Type of Fluid Drainage
Max. Solid Handling mm 25
Max. dry matter % 15
Max. PH Value 5-9
Max. Capacity l/min 17500
Max. Head m 38
Motor output kW 75,0
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 200
Type of Fluid Drainage
Max. Solid Handling mm 25
Max. dry matter % 15
Max. PH Value 5-9
Max. Capacity l/min 9100
Max. Head m 46.2
Motor output kW 45,0
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 200
Type of Fluid Sand/Slurry
Max. Solid Handling mm 50
Max. dry matter % 15
Max. PH Value 5-9
Max. Capacity l/min 9000
Max. Head m 21.50
Motor output kW 22,0
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 200
Type of Fluid Drainage
Max. Solid Handling mm 25
Max. dry matter % 15
Max. PH Value 5-9
Max. Capacity l/min 8400
Max. Head m 44
Motor output kW 37,0
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 150
Type of Fluid Drainage
Max. Solid Handling mm 10
Max. dry matter % 15
Max. PH Value 5-9
Max. Capacity l/min 4950
Max. Head m 60
Motor output kW 37,0
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 200
Type of Fluid Sand/Slurry
Max. Solid Handling mm 50
Max. dry matter % 15
Max. PH Value 5-9
Max. Capacity l/min 10500
Max. Head m 28.6
Motor output kW 37,0
Phase / Voltage 3-phase / 400V / 50Hz
General
ø Discharge bore mm 150 - 250
Discharge Connection JIS 10K Flange
Pumping Fluid
Type of Fluid Drainage, Sand/Slurry
Temperature 0-40°C
Max. Solid Handling mm 10 - 50
Max. dry matter % 15
Max. PH Value 5-9
Max. Capacity l/min 4950 - 18000
Max. Head m 21.50 - 60
Pump
Components
Impeller Closed type impeller, Semi-open type impeller
Bearings Shielded ball bearings
Mechanical Seal Dual mechancial seal in oil bath
Material
Impeller Chromium iron casting, Stainless steel casting DIN X5CrNi18-10
Casing Grey iron casting EN-GJL-200
Suction Plate Grey iron casting EN-GJL-200, Chromium iron casting
Pump Body Structured Steel
Mechanical Seal Silicon Carbide
Motor
Motor output kW 22,0 - 150
Starting method direct online , star/delta
Type, Poles Induction motor, 4 poles, IP68, Induction motor, 6 poles, IP68
Insulation Insulation class F
Phase / Voltage 3-phase / 400V / 50Hz
r.p.m. 970 - 1491
Motor Protector (built-in) Miniature protector
Rated Current 47 - 285
Material
Frame Grey iron casting EN-GJL-200
Shaft Stainless steel EN-X30Cr13
Cable NSSHÖU(3C*70mm²,3*35mm²/3E,3*2,5ST);NSSHÖU (3C*70mm², 3*35mm²/3E), NSSHÖU(3C*35mm²,3*16mm²/3E,2*2,5ST);NSSHÖU (3C*35mm², 3*16mm²/3E), NSSHÖU 4C*10mm²/2C*1.5mm²; NSSHÖU (4C*10mm²), NSSHÖU 4C*10mm² + 2*1,5ST
Cable Length 20m
Others
Dry Weight Kg 566 - 2650
Pressure Resistance max. 40m
Dimensions in mm:
W1: lowest running water level
  • GSZ2-75-4
  • GSZ2-75-4L
  • GSZ5-37-4H
  • GSZ5-37-4
  • GSZ4-45-4
  • GSZ2-55-4
  • GSZ5-22-6
  • GSZ5-37-6
  • GSZ10150
ModelAA1B1DHW1d
GSZ10150121810187648602455780250
GSZ2-55-410508506557081927510250
GSZ2-75-410508506557081927510250
GSZ2-75-4L10508507007391972730250
GSZ4-45-49157506006601591460200
GSZ5-22-69658004747201360350200
GSZ5-37-49157505506601583480200
GSZ5-37-4H9007605207001553440150
GSZ5-37-610478824308041421370200

The GSZ-series is a submersible three-phase cast iron high head and high volume heavy-duty drainage pump driven by a 4-pole motor. The side discharge, spiral design allows smoother passage of the sucked solid matters. The motor is cooled by a water jacket that assures efficient motor cooling even when it operates with its motor exposed to air. The pump incorporates seal pressure relief ports that prevent the pumping pressure from applying to the shaft seal.

Case studies

Serbia

Open Pit Mining

A large open pit coal mine used to install dewatering pumps from European manufacturers and had issues with pumping water during heavy rain events and snow season when the water became mudy and loaded with solids. When the water became loaded with abrasive material a lot of problems started.

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