Factory-Direct Water Pumps
DHAN LAKSHMI Water Pumps
Openwell submersible and self-priming monoblock pumps engineered by Dhanashri Electromech Industries for agriculture, domestic, and commercial water transfer.
Openwell Submersible Pumps
What is an Openwell Submersible Pump?
- Hermetically sealed IP68 water pump designed to rest fully submerged underwater at the bottom of a well, farm tank, or sump.
- Self-flooded underwater operation that completely eliminates foot-valve maintenance, air-lock, and manual priming troubles.
- Engineered with 100% pure copper winding and stainless steel SS304 casing for high discharge volume and corrosion resistance.
Who needs an Openwell Submersible Pump?
- Farmers and agriculturalists requiring high-volume water discharge for field irrigation, open dug wells, and drip systems.
- Rural farm owners and orchards lifting water from farm ponds, rivers, canals, or open ground storage tanks.
- Residential societies, commercial complexes, and institutions with large underground sumps needing silent continuous water transfer.
0.5 HP Openwell Submersible Pump
Karha 50
Power Rating0.5 HP (0.37 kW)
Maximum Head18 m Head
1.0 HP Openwell Submersible Pump
Karha 100
Power Rating1 HP (0.75 kW)
Maximum Head26 m Head
1.5 HP Openwell Submersible Pump
Karha 150
Power Rating1.5 HP (1.2 kW)
Maximum Head30 m Head
1.5 HP High-Head Openwell Submersible Pump
Karha 151
Power Rating1.5 HP (1.2 kW)
Maximum Head38 m Head
0.5 HP Openwell Submersible Pump
Karha 50
Power Rating0.5 HP (0.37 kW)
Maximum Head18 m Head
1.0 HP Openwell Submersible Pump
Karha 100
Power Rating1 HP (0.75 kW)
Maximum Head26 m Head
1.5 HP Openwell Submersible Pump
Karha 150
Power Rating1.5 HP (1.2 kW)
Maximum Head30 m Head
1.5 HP High-Head Openwell Submersible Pump
Karha 151
Power Rating1.5 HP (1.2 kW)
Maximum Head38 m Head
Self-Priming Monoblock Pumps
What is a Self-Priming Monoblock Pump?
- Compact surface-mounted centrifugal pump engineered with an internal air-water separation chamber.
- Automatically evacuates air bubbles from suction piping to establish rapid water draw without repeated manual priming.
- Fitted with thermal overload protector (TOP) and 100% pure copper motor for steady high-pressure water delivery.
Who needs a Self-Priming Monoblock Pump?
- Homeowners and bungalows needing reliable water lifting from underground sumps to rooftop tanks (1 to 4 storeys).
- Apartments, residential buildings, and farmhouses requiring high water pressure and suction lift up to 15 meters.
- Lawn sprinkler systems, construction sites, and light commercial establishments requiring dependable water transfer.
0.5 HP Self-Priming Monoblock Pump
Nira 50
Power Rating0.5 HP (0.37 kW)
Maximum Head22 m Head
1.0 HP Self-Priming Monoblock Pump
Nira 100
Power Rating1 HP (0.75 kW)
Maximum Head32 m Head
1.0 HP Deep-Suction Self-Priming Pump
Nira 10V
Deep Suction LiftUp to 15 m Suction
Maximum HeadUp to 38 m Head
0.5 HP Self-Priming Monoblock Pump
Nira 50
Power Rating0.5 HP (0.37 kW)
Maximum Head22 m Head
1.0 HP Self-Priming Monoblock Pump
Nira 100
Power Rating1 HP (0.75 kW)
Maximum Head32 m Head
1.0 HP Deep-Suction Self-Priming Pump
Nira 10V
Deep Suction LiftUp to 15 m Suction
Maximum HeadUp to 38 m Head
Pump Specifications & Performance Comparison
Compare head, discharge flow rate, suction depth, and pipe sizes across the entire DHAN LAKSHMI range to select the optimal model for your application. Click on any model name to inspect full performance curves, head charts, and technical specifications.
| Model | Type | HP | Head Range | Discharge Flow | Recommended Application |
|---|---|---|---|---|---|
| Karha 50 | Openwell Submersible | 0.5 HP | 4 - 18 m | Up to 6,197 LPH | Open wells, residential sumps, micro-irrigation, domestic tanks |
| Karha 100 | Openwell Submersible | 1.0 HP | 8 - 26 m | Up to 8,875 LPH | Agricultural open wells, farm tanks, drip irrigation, overhead transfer |
| Karha 150 | Openwell Submersible | 1.5 HP | 10 - 30 m | Up to 9,940 LPH | Heavy farm irrigation, multi-acre crop watering, river water lifting |
| Karha 151 | Openwell Submersible | 1.5 HP | 10 - 38 m | Up to 11,040 LPH | Deep open wells, high head canal lifting, commercial agriculture |
| Nira 50 | Self-Priming Monoblock | 0.5 HP | 8 - 22 m | Up to 1,600 LPH | 1-2 storey homes, domestic overhead tanks, shallow sumps, gardens |
| Nira 100 | Self-Priming Monoblock | 1.0 HP | 10 - 32 m | Up to 2,500 LPH | 2-4 storey residential buildings, apartments, farmhouses, water transfer |
| Nira 10V | Self-Priming Monoblock (Deep Suction) | 1.0 HP | 10 - 38 m | Up to 3,000 LPH | Deep underground sumps, multi-storey buildings, high lift pressure |
How to Choose the Right Water Pump
Selecting the right pump depends on your water source, physical lift distance, flow requirements, and piping. Here are the key factors to evaluate:
Flow Capacity (Discharge)
- Measured in Liters Per Hour (LPH) or LPM to determine total volume delivery.
- High-volume farm and pond irrigation requires 6,000 to 11,000+ LPH (Openwell Submersibles).
- Domestic overhead tanks (500L to 2,000L) require 1,500 to 3,000 LPH (Self-Priming Monoblocks).
Total Head (Lift Height)
- Total vertical height in meters from water source level to rooftop destination tank.
- Includes frictional resistance from delivery piping, bends, and valves.
- 1–2 storey buildings need 15–20m head; 3–4 storeys need 25–38m head.
Suction Lift Depth
- Vertical distance between the pump inlet and the water surface.
- Openwell submersibles rest submerged in water with zero suction lift restriction.
- Self-priming surface pumps lift up to 5m, while deep-suction models (Nira 10V) lift up to 15m.
Pipe Size & Friction
- Delivery pipeline diameter directly influences water output and motor current.
- Standard DHAN LAKSHMI pumps use 25 mm (1") or 38 mm (1.5") outlets.
- Avoid reducing delivery pipe size over long runs to prevent flow restriction and motor strain.
Application & Duty
- Continuous agricultural irrigation needs S1 continuous-duty motor and SS304 casing.
- Domestic residential use requires automatic self-priming and Thermal Overload Protection (TOP).
- Ensure 100% pure copper winding for thermal resilience against voltage fluctuations.
Not Sure Which Pump Model You Need?
Share your well depth, suction requirements, and head height. Our engineering experts will help you select the optimal DHAN LAKSHMI water pump.
Questions About DHAN LAKSHMI Pumps
Find quick answers about pump selection, specifications, and operation.
For agriculture, openwell submersible pumps such as the DHAN LAKSHMI Karha 100 (1.0 HP), Karha 150 (1.5 HP), and Karha 151 (1.5 HP) are best. Resting submerged inside open wells, farm ponds, or canals, they deliver high discharge (up to 11,040 LPH), operate on 100% pure copper winding, and eliminate priming or foot valve issues.