4" Water Lubricated Submersible Motor (50/60 hz)

Variety and Range

Flow Range : 1.56 to 18.0 M3/h
Head Range : 20 to 300 Meter
Ratings : 0.37 Kw to 3.7 Kw (Single Phase) & 0.75 kw to 7.5 kw (Three Phase)
Rating Speed (50Hz) : 2850 RPM
Rating Speed (60Hz) : 3450 RPM
Pressure Compensation diaphragm

Technical Specification / Material of Construction

Upper and Lower Housing & motor base : Only Stainless Steel
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
Max depth immersion : 400 meter
Motor Cable Length : 3.0mtr(3 core/ 4 core)
Maximum Outer Dia : 98 mm

Robust and completely rewindable, Marwaan’s water-lubricated submersible motors are pre-filled with clean water infused with anti-corrosion fluid — offering reliable, eco-conscious performance in demanding environments.
Equipped with water-lubricated radial and thrust bearings (Carbon vs. Chrome Steel) to ensure smooth, wear-resistant operation under axial and radial loads.
The shaft extension is made from high-strength Stainless Steel (AISI 420), providing long-term durability and corrosion resistance.
High-efficiency electrical design minimizes power loss, reducing operational costs and enhancing performance.
Integrated pressure compensation diaphragm for optimal pressure balance during deep-well operations.
All single-phase motors must be used with a compatible control box for safe and efficient function.

Variety and Scope

Engineered for durability and smooth performance, our 4” Water Lubricated Submersible Motors are ideal for residential, agricultural, and light industrial applications. Designed to operate efficiently in narrow borewells, these motors offer excellent thermal resistance, low maintenance, and reliable protection under varying load conditions.