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Grindex Dewatering Pump: Major

Electrical submersible 3~ drainage pump

The Major pump results in the lowest cost per cubic meter pumped. The drainage range of pumps drain water, not your wallet! The revolutionary hydraulic design ensures high wear resistence and dramatically reduces performance drop due to long time wear.

The Major pump is available in two configurations:

  • Major N (Normal head)
  • Major H (High head)

Available in both 50hz and 60hz models.

Grindex-Major
Technical DataNH
Discharge connection4″3″
Rated output5.6 kW5.6 kW
Max power consumption6.6 kW6.6 kW
Rated current at 400 V11 A11 A
Rated current at 500 V8.7 A8.7 A
Shaft speed2895 RPM2895 RPM
Strainer holes∅ 10 mm∅ 10 mm
Weight50 kg50 kg
Height768 mm768 mm
Width∅ 286 mm∅ 286 mm
Other voltages on request

Upper Mechanical Seal:
Tungsten carbide - Aluminium oxide
Lower Mechanical Seal:
Silicon carbide
Outer Casing:
Stainless steel
Strator Housing:
Aluminium
Motor Shaft:
Stainless steel
Impeller:
Hard-IronTM
Suction Cover:
Hard-IronTM
Low Suction Collar:
On request
Float Switch:
On request
Zinc Anodes:
On request
Other Castings:
Aluminium
Pump Raft:
On request
Screws & Nuts:
Stainless steel
Diffuser Ring:
Nitrile Rubber
O-Rings:
Nitrile rubber
Max. Liquid Density:
1100 kg/m3
Max. Liquid Temperature:
40°C
pH of Liquid:
5-8
Max Submersible Depth:
20m
Tandem Connection:
On request
Download: Curve
gx_brochure_drainagesludge_en_50hz-THUMBNAIL
Product Brochure
IOM Manual
Upper Mechanical Seal:
Tungsten carbide - Aluminium oxide
Lower Mechanical Seal:
Silicon carbide
Outer Casing:
Stainless steel
Strator Housing:
Aluminium
Motor Shaft:
Stainless steel
Impeller:
Hard-IronTM
Suction Cover:
Hard-IronTM
Diffuser Ring:
Nitrile Rubber
Screws & Nuts:
Stainless steel
O-Rings:
Nitrile rubber
Other Castings:
Aluminium
Zinc Anodes:
On request
Float Switch:
On request
Low Suction Collar:
On request
Tandem Connection:
On request
Pump Raft:
On request
Max Submersible Depth:
20m
pH of Liquid:
5-8
Max. Liquid Temperature:
40°C
Max. Liquid Density:
1100 kg/m3