Grundfos SmART SUB Series – Horizontal Open Well Submersible Pumps in India

The Grundfos SmART SUB Series offers high-performance horizontal open well submersible pumps designed for both single-phase and three-phase operation. Built for underwater applications, these pumps eliminate the need for priming or a foot valve, ensuring hassle-free operation. Ideal for open wells, water tanks, and fluctuating water level conditions, the SmART SUB Series delivers reliable, efficient, and long-lasting performance.

Engineered with anti-corrosive coatings, high-grade materials, and precision components, these pumps guarantee smooth operation even in demanding environments. Whether for domestic water supply, agricultural use, landscaping, or industrial applications, Grundfos SmART SUB ensures consistent water delivery with minimal maintenance.

Why Choose Grundfos SmART SUB?

Engineered for reliability, efficiency, and long service life, the Grundfos SmART SUB series is the perfect choice for diverse water pumping needs.

Versatile Applications – Ideal for sump-to-overhead tank filling, farm irrigation, fountains, industrial and rural water supply, gardening, and landscaping.
Durable Bearings – Carbon radial bush bearings and stainless steel thrust bearings with carbon pads handle axial thrust loads with ease.
Corrosion-Resistant Build – Anti-corrosive coated cast iron parts prevent rust for extended service life.
High Efficiency – Neck ring in volute casing ensures optimal hydraulic performance.
Quality Construction – Noryl and CED-coated cast iron impeller, stainless steel shaft, and thrust ring for maximum durability.
User Convenience – Supplied with starter box (single-phase models), L-bend strainer, and cable joining kit.
Continuous Duty Design – S1 duty for three-phase models ensures uninterrupted performance.

Key Features of Grundfos SmART SUB

Engineered for efficiency, durability, and ease of use, the Grundfos SmART SUB series is designed to deliver consistent performance across a wide range of applications.

Durable Bearings– Fitted with carbon radial bush bearings and stainless steel thrust bearings with carbon pads on both drive and non-drive ends, ensuring smooth handling of axial thrust loads.
High-Quality Motor Cable – Comes with PVC-insulated 3-core 1.5 mm motor cable for safe and efficient power delivery.
Corrosion Protection – Cast iron parts feature a specialized anti-corrosive coating to prevent rust and extend service life.
Enhanced Safety – Equipped with a winding overhang protector for additional motor safety.
Optimized Performance– Neck ring in volute casing ensures high hydraulic efficiency.
Added Convenience – Supplied with starter box for single-phase pumps, L-bend strainer, and cable joining kit.
Continuous Duty Capability – Designed for S1 duty in three-phase models for uninterrupted operation.

Applications of Grundfos SmART SUB

The Grundfos SmART SUB Series is versatile and suitable for a wide range of water pumping needs, including:

Sump to Overhead Tank Filling

Efficiently transfers water from sumps or underground tanks to overhead storage tanks for domestic and commercial use.

Farm Irrigation

Provides reliable water supply for agricultural lands, ensuring healthy crop growth.

Decorative Fountains

Powers water circulation in fountains, ponds, and water features for aesthetic enhancement.

Industrial and rural water supply

Ideal for supplying clean water in rural areas with fluctuating water levels.

Gardening and Landscaping

Ensures adequate water flow for maintaining gardens, lawns, and landscaped areas.

Grundfos SmART SUB – Product Specifications

Part Code	Model	Phase	Power (kW)	Power (HP)	Voltage	Pipe Size (mm) Suction	Delivery	Flow (LPH)	Head (Mtr)
96939851	SmART SUB HOS 1-0.37	1	0.37	0.5	220 V	25	25	7200, 6600, 5100, 3900, 2400, 600	12, 14, 16, 18, 20, 21
96939852	SmART SUB HOS 1-0.75	1	0.75	1	220 V	25	25	7800, 7500, 6900, 6000, 4800, 3600, 2400, 1200	12, 15, 18, 21, 24, 27, 30, 32
96939853	SmART SUB HOS 2-0.75	1	0.75	1	220 V	50	50	21000, 18000, 15000, 10800, 3000	6, 9, 12, 15, 18
96939854	SmART SUB HOSD 1-1.1	1	1.1	1.5	220 V	32	25	8400, 7670, 7000, 6230, 5280, 4360, 3370, 1730	12, 16, 19, 22, 26, 29, 32, 36
96939855	SmART SUB HOTD 1-1.1	3	1.1	1.5	415 V	-	-	-	-
96939856	SmART SUB HOSD 1.5-1.5	1	1.5	2	220 V	40	40	11260, 11040, 10020, 8750, 7330, 6450, 5300, 3780, 2550	19, 21, 27, 33, 39, 43, 45, 48, 50
96939857	SmART SUB HOTD 1.5-1.5	3	1.5	2	415 V	-	-	-	-
96939858	SmART SUB HOT 1.5-2.2	3	2.2	3	415 V	40	40	19860, 19620, 19440, 17580, 15600, 11940, 8520	5, 10, 16, 21, 26, 31, 36
96939859	SmART SUB HOT 2-3.7	3	3.7	5	415 V	50	50	33060, 32160, 29340, 25740, 22440, 18420, 13500, 10680, 7560	8, 10, 15, 20, 24, 28, 32, 34, 36
96939860	SmART SUB HOT 2-5.5	3	5.5	7.5	415 V	65	50	39780, 38640, 36720, 33660, 30840, 27120, 23640, 19440, 13320, 10020, 6120	11, 15, 20, 25, 30, 35, 40, 45, 50, 52, 54
96939861	SmART SUB HOT 2.5-5.5	3	5.5	7.5	415 V	80	65	61020, 56220, 50520, 46380, 40860, 33720, 25860, 18420	22, 24, 26, 29, 31, 33, 35, 37
96939862	SmART SUB HOT 2.0-7.5	3	7.5	10	415 V	65	50	42120, 40280, 38430, 35340, 32160, 28740, 24660, 22220, 13740	10, 15, 20, 25, 30, 35, 40, 45, 55
96939863	SmART SUB HOT 2.5-7.5	3	7.5	10	415 V	80	65	70260, 66990, 61860, 55620, 47400, 38700, 22140	27, 29, 31, 33, 35, 37, 39

FAQs - About Grundfos SmART SUB

Q1. Where can the Grundfos SmART SUB be used?+

It is suitable for multiple applications including sump-to-overhead tank filling, farm irrigation, decorative fountains, industrial and rural water supply, gardening, and landscaping, providing versatile pumping solutions.

Q2. Does the SmART SUB pump require priming?+

No, since it is designed for underwater use, the pump does not require priming or a foot valve, which simplifies installation and operation.

Q3. What type of liquid can the SmART SUB handle?+

It is designed for clean, thin, non-aggressive, non-explosive cold fresh water without abrasive particles, solids, or fibers, ensuring smooth and safe operation.

Q4. What makes the SmART SUB pump durable?+

The pump features carbon radial bush bearings, SS thrust bearings, and anti-corrosive coating on cast iron parts, ensuring long-lasting performance even in challenging environments.

Q5. Is the SmART SUB pump energy efficient?+

Yes, its neck ring in the volute casing and precision-engineered hydraulic components help deliver high efficiency, reducing operational costs and energy consumption.

Q6. Can the SmART SUB pump run continuously?+

Yes, the three-phase models are designed for S1 continuous duty operation, ensuring uninterrupted performance in demanding applications.

Q7. What comes with the SmART SUB pump package?+

Single-phase pumps are supplied with a starter box, while all models come with an L-bend strainer and cable joining kit for easy installation.

Q8. Why should I choose Grundfos SmART SUB over other pumps?+

The SmART SUB offers a blend of reliability, durability, energy efficiency, and ease of maintenance, making it a trusted choice for both domestic and industrial pumping needs.