GSZ

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: 3620 - 18000
  • Max. Head m: 21.50 - 59.3
  • Motor output kW: 22,0 - 150
  • Phase / Voltage: 3-phase / 400V / 50Hz
Performance curve
1 O
2 O
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
GSZ637 1 150 Drainage 10 15 5-9 3620 59.3 37,0 3-phase / 400V / 50Hz
GSZ837 2 200 Drainage 25 15 5-9 8580 42 37,0 3-phase / 400V / 50Hz
GSZ845 3 200 Drainage 25 15 5-9 9240 41.3 45,0 3-phase / 400V / 50Hz
GSZ2-55-4 4 250 Drainage 25 15 5-9 10700 47 55,0 3-phase / 400V / 50Hz
GSZ2-75-4
5
250 Drainage 25 15 5-9 12500 52 75,0 3-phase / 400V / 50Hz
GSZ2-75-4L
6
250 Drainage 25 15 5-9 17500 38 75,0 3-phase / 400V / 50Hz
GSZ10150 7 250 Drainage 25 15 5-9 18000 54.5 150 3-phase / 400V / 50Hz
GSZ5-22-6 (GSZL822) 8 200 Sand/Slurry 50 15 5-9 9000 21.50 22,0 3-phase / 400V / 50Hz
GSZL837 9 200 Sand/Slurry 50 15 5-9 10500 27.5 37,0 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 3620
Max. Head m 59.3
Motor output kW 37,0
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 8580
Max. Head m 42
Motor output kW 37,0
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 9240
Max. Head m 41.3
Motor output kW 45,0
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 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 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 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 Sand/Slurry
Max. Solid Handling mm 50
Max. dry matter % 15
Max. PH Value 5-9
Max. Capacity l/min 10500
Max. Head m 27.5
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 3620 - 18000
Max. Head m 21.50 - 59.3
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
Suitable for VFD Yes
Suitable for Soft Starter Yes
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,3*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 575 - 2650
Pressure Resistance max. 40m
Dimensions - in mm
W1: lowest running water level
  • GSZ637
  • GSZ837
  • GSZ845
  • GSZ2-55-4
  • GSZ2-75-4
  • GSZ2-75-4L
  • GSZ10150
  • GSZ5-22-6 (GSZL822)
  • GSZL837
ModelAA1B1DHW1d
GSZ6379007605207001552440150
GSZ8379157505506601582480200
GSZ8459157506006601620460200
GSZ2-55-410508506557081927510250
GSZ2-75-410508506557081927510250
GSZ2-75-4L10508507007391972730250
GSZ10150121810187648602455780250
GSZ5-22-6 (GSZL822)9658004747201360350200
GSZL83710478824308041420370200

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.

Float switch 1023012
Float 20m (for Cotractors Pumps)
Automatic Operation: Activates the submersible pump when water levels rise to a preset height and deactivates it when levels drop, preventing overflow or pump damage.
Float switch 1023012
Float 20m (for Cotractors Pumps)
Automatic Operation: Activates the submersible pump when water levels rise to a preset height and deactivates it when levels drop, preventing overflow or pump damage.
Float switch 1023012
Float 20m (for Cotractors Pumps)
Automatic Operation: Activates the submersible pump when water levels rise to a preset height and deactivates it when levels drop, preventing overflow or pump damage.
Float switch 1023012
Float 20m (for Cotractors Pumps)
Automatic Operation: Activates the submersible pump when water levels rise to a preset height and deactivates it when levels drop, preventing overflow or pump damage.
Flange Adapters 048-TEG-10
Flange Adapter JIS/DIN
Specifications
No. Of bolt holes 12
Flange adapter for 10" JIS 10K - 10" DIN PN10
Float switch 1023012
Float 20m (for Cotractors Pumps)
Automatic Operation: Activates the submersible pump when water levels rise to a preset height and deactivates it when levels drop, preventing overflow or pump damage.
Float switch 1023012
Float 20m (for Cotractors Pumps)
Automatic Operation: Activates the submersible pump when water levels rise to a preset height and deactivates it when levels drop, preventing overflow or pump damage.
Float switch 1023012
Float 20m (for Cotractors Pumps)
Automatic Operation: Activates the submersible pump when water levels rise to a preset height and deactivates it when levels drop, preventing overflow or pump damage.
Float switch 1023012
Float 20m (for Cotractors Pumps)
Automatic Operation: Activates the submersible pump when water levels rise to a preset height and deactivates it when levels drop, preventing overflow or pump damage.
Float switch 1023012
Float 20m (for Cotractors Pumps)
Automatic Operation: Activates the submersible pump when water levels rise to a preset height and deactivates it when levels drop, preventing overflow or pump damage.