3” Water Lubricated Motors (50/60 Hz)

Unnati UW3 series submersible motors are perfect for water-wells of 3-inches or larger diameter as it maintains uniform clearance for improved efficiency and longevity. The pre-filled motor comes with a mixture of clean water and anti-corrosion fluid. Fitted with polypropylene copper wires for stator winding and shaft seals, ‘O’ rings and sand guards prevent lubricant leakage or ingress of well-water and pollutants. Additionally, the pump is fitted with radial and thrust bearings (water-lubricated) that resist the elevated axial thrust loads. The pressure-equalizing rubber diaphragms protect against the varying volumes and pressure. Hence, 3-inch water-lubricated motors are useful for residential use, fountains, gardening/horticulture, and pressure-boosting units.

Submersible Motors
Description Tech Spec with Moc Downloads


Unnati Water Submersible Motor are robust rewindable and pre-filled with clean water mixed anti- corrosion fluid.

Shaft Extension Made of Stainless Steel AISI 420

High efficiency electrical design for lower operating cost.

Pressure Compensation diaphragm

All single Phase Motors require Control Box

Variety and Range

Flow Range : 1.74 to 3.60 M3/h

Head Range : 18 to 90 Meter

Ratings : 0.37 Kw to 1.10 Kw

Rating Speed : 2850 RPM

Technical Specification / Material of Construction


“Upper and Lower Housing & motor base : Graded C.I Casting with Epoxy Paint“

Stator Shell : Stainless steel

Motor Shaft : S.S 420

Winding Wire : Poly Propylene

Degree of Protection : IP 68

Max Water Temperature : 50’C

Nos. of Start per Hour : Max 20 at regular intervals

Voltage variation : +6% / -10% at rated voltage

Bearing : Water Lubricated radial and thrust bearing.

Max depth immersion : 100 meter

Motor Cable Length : 3.0mtr(3 core/ 4 core )

Mounting : Vertical / Horizontal

Single Phase motor – Capacitor Start Capacitor Run (CSCR)

3″ Water Lubricated Motors 50 Hz