"Minette" electric submersible dirty water pump

Technical data and special features:

• Air valve: forced cooling of the pump in a dry-running situation / SMART motor protection: phase failure protection, direction of rotation control / Pump cover: easy maintenance of the electrical components / Outer casing made of corrugated stainless steel
• External oil control screw: easy service and maintenance / Test chamber: early warning of seal problems / Cartridge seal: pre-assembled, easy and quick installation / Seal retention: less wear on seals
• One adjustment screw: easy adjustment of the impeller for optimal performance / Wear protection: higher wear resistance / Nitrile rubber shock absorber: first-class shock protection
• Electric motor: single-phase squirrel-cage motor with starting and running capacitor; three-phase squirrel-cage motor; insulation class: F (IEC 85)
• Max. delivery head: 18 m (1-phase) / 22 m (3-phase)
• Max. flow rate: 900 l/min (1-phase) / 1,020 l/min (3-phase)
• Shaft speed: 2,800 rpm
• Rated current at 230 V: 8.4 A (1-phase) / Rated current at 400 V: 4.7 A (3-phase) / Rated current at 500 V: 3.6 A (3-phase)
• Pressure connection Ø: 3" / Pressure connection: ISO-G
• Motor protection: single-phase - temperature monitor with thermal sensors in the stator opens at 125°C, air cooling valve; three-phase - phase monitor for phase sequence and phase failure, temperature monitor with thermal sensors in the stator opens at 125°C (= SMART system), air cooling valve
• Rubber-sheathed cable - SubCab: single-phase - 3G1.5 mm², length 20 m; three-phase - 4G1.5 mm², length 20 m
• Bearing: Ball bearing with C3 pitch
• free passage: Ø 9 mm (maximum size of solids)
• Weight: 30 kg (1-phase) / 32 kg (3-phase)
• Optional accessories: zinc anodes, float switch, dryflow bottom suction sleeve, floating pontoon

Application limits:

• Max. immersion depth: 20 m
• Max. liquid temperature: 40 °C
• pH value of the liquid: 5 - 8
• Max. density of the liquid: 1,100 kg/m³

Materials:

• Castings: aluminum
• Outer housing, motor shaft, screws/nuts: stainless steel
• Impeller / Suction cover: Hard-Iron™
• Diffusers / O-rings: Nitrile rubber

Shaft seals:

• Seal cartridge with double sliding ring in an oil chamber
• Material - lower seal: silicon carbide - silicon carbide
• Material - upper seal: tungsten carbide - aluminum oxide

• Connection voltage: 230 (1-phase) / 400 (3-phase) V
• Input power: max. 1.9 (1-phase) / 2.7 (3-phase) kW
• Ø: 240 mm
• Frequency: 50 Hz
• Height: 667 mm
• Brand: Grindex
• Rated power: 1.5 (1-phase) / 2.2 (3-phase) kW
• Protection class: IP68