4" Oil 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

Technical Specification / Material of Construction

Upper and Lower Housing & motor base : Graded C.I Casting with Epoxy Paint
Motor Base: Noryl GTX – 30% Glass Filled
Stator Shell : Stainless steel
Motor Shaft : S.S 420
Winding Wire : Enameled copper insulation class- H
Degree of Protection : IP 68
Max oil Temperature : 50’C
Nos. of Start per Hour : Max 20 at regular intervals
Voltage variation : +6% / -10% at rated voltage
High Dielectric strength non- toxic fluid
Max depth immersion : 300 meter
Motor Cable Length : 3.0mtr(3 core/ 4 core )
Maximum Outer Dia : 98 mm

Engineered for reliability, Marwaan’s oil-filled submersible motors are lubricated and cooled using a non-toxic, eco-friendly fluid with high dielectric strength — ensuring optimal thermal management and insulation.
Pre-lubricated ball bearings guarantee smooth, trouble-free, and long-lasting performance with minimal maintenance.
Shaft extension is constructed from high-grade Stainless Steel (AISI 420) for enhanced strength and corrosion resistance.
Fitted with a high-quality mechanical shaft seal (Carbon/Ceramic) to ensure secure sealing under deep-water conditions.
High-efficiency electrical design lowers power consumption and reduces operating costs over time.
Built-in pressure compensation diaphragm for consistent performance under varying load and water pressure.
All single-phase motors must be operated with a compatible control box.
Single-phase motor types available:
Capacitor Start Capacitor Run (CSCR)
Capacitor Start Run (CSR)

Variety and Scope

Reliable, robust, and engineered for long-lasting performance, our 4” Oil Lubricated Submersible Motors are perfectly suited for domestic, agricultural, and light industrial applications. With superior cooling, efficient design, and a wide performance range, these motors operate seamlessly even in demanding environments and varying load conditions.