This page covers industrial drainage pumps for construction sites, industrial facilities, and infrastructure projects — not household sump pumps. If you are looking for a small residential drainage pump for a flooded basement or garden pond, Cosmos Pumps does not manufacture consumer-grade equipment. Our drainage pumps start at 1.5 HP and go to 1,550+ HP for flood control operations.
Drainage pumps remove standing water and site runoff from excavations, basements, plant rooms, infrastructure tunnels, and flooded areas. The correct pump depends on the volume to be moved, the head (lift) required, and what the water contains — clean groundwater, silted construction runoff, or mixed sewage.
Construction excavations and foundation trenches accumulate groundwater and rain runoff throughout the build cycle. The CDW Standard submersible (1.5–50 HP, flow rate 450–8,500 LPM, shut-off head up to 86.5 M) covers the majority of construction drainage requirements — small trench dewatering at 1.5–3 HP, mid-scale cut-and-cover drainage at 5–15 HP, large open-cut foundations and airport projects at 25–50 HP.
For sites where drainage heads exceed 86.5 M — deep foundation shafts, vertical cut structures, or metro construction sumps — the CDW High Head (5–75 HP, shut-off head 40–140 M) is the correct specification.
Industrial buildings, warehouses, and processing plants with below-grade plant rooms need reliable drainage during heavy rain events and maintenance. The CDW Standard at 5–15 HP covers most industrial basement sump requirements where the water is clean groundwater or surface runoff. Where the basement receives wastewater from process areas or mixed sewage/stormwater — as in combined drainage systems — specify the CNC Non-Clog (6–20 HP, passes 70mm solids) or CSW Sewage Submersible (2–200 HP, passes 20–100mm solids) instead of a drainage pump.
Large-scale monsoon flood drainage requires surface-mounted, diesel-driven auto-prime pumps rather than submersibles. Cosmos Pumps operates a fleet of 50+ CAP auto-prime diesel surface pumps (60–105 HP) deployed annually across flood control operations. The CAP series primes automatically, runs dry without damage, and operates without a fixed power supply — the key requirements for emergency flood response where grid power is unreliable.
For municipal flood control, road underpass dewatering, and urban drainage during peak monsoon, CAP units at 60–105 HP move up to 74,483 LPM per unit. Multiple units operate in parallel for higher flow requirements.
Metro construction, road and highway projects, bridge abutments, and irrigation canals require drainage over extended project durations at varying flow rates. CDW Standard and CDW High Head submersibles cover the 6–18 month window of most infrastructure dewatering cycles. For remote sites without grid power, CAP diesel auto-prime provides the same flow capacity on site-generated diesel.
| Drainage Application | Recommended Cosmos Pump | HP Range | Max Head | Notes |
|---|---|---|---|---|
| Construction excavation and trench (clean water) | CDW Standard Submersible | 1.5–50 HP | 86.5 M | Standard construction drainage specification |
| Deep shaft, metro sump, tunnel (clean water, >86 M head) | CDW High Head Submersible | 5–75 HP | 140 M | Required where pit depth exceeds 86 M |
| Industrial basement, combined stormwater/sewage | CNC Non-Clog Submersible | 6–20 HP | 30 M | Handles 70mm solids and viscous sludge; the vortex pump for thick sludge prevents impeller clogging on fibrous material |
| Monsoon flood control, open-area drainage | CAP Auto-Prime Diesel Surface | 60–105 HP | 169 M | Diesel, no power supply needed; available from Cosmos rental fleet |
Choosing between a CDW submersible and CAP auto-prime surface pump for drainage depends on three factors:
Cosmos Pumps’ rental fleet stocks both series — contact the team for a rental quote that matches your HP and site logistics.
An industrial drainage pump removes water from excavations, sumps, basements, and flooded infrastructure in construction and industrial settings. Unlike residential sump pumps (typically 0.3–0.75 HP), industrial drainage pumps operate at 1.5 HP to 1,550+ HP, handle dirty water with suspended solids up to 12mm (dewatering series) or 70mm (non-clog series), and are built to continuous-duty standards for months of site operation. Cosmos Pumps manufactures industrial drainage pumps from 1.5 HP (CDW Standard) through 1,550+ HP (CAP auto-prime diesel).
The CDW Standard submersible (1.5–50 HP, flow rate 450–8,500 LPM) covers the majority of construction site drainage requirements. At 1.5–3 HP, it handles foundation trenches and basement excavations. At 5–15 HP, it covers mid-scale open-cut construction. For deep shafts or tunnels requiring head above 86.5 M, the CDW High Head (5–75 HP, 40–140 M shut-off head) is the correct specification. Cosmos Pumps also rents both series with pan-India delivery — standard availability within 24–48 hours for common HP sizes.
In practice, the terms are used interchangeably for the same pump type in industrial settings. Both refer to submersible or surface pumps that remove water from excavations, sumps, and flooded areas. In Cosmos Pumps’ product range, the CDW series is the product used for both drainage and dewatering duty. The distinction matters only at the application level: a drainage pump moves clear to lightly silted surface water, while a dewatering pump is specifically used to lower the water table at a construction or mining site. Both use the same CDW hardware.
A commercial building basement (1,000–5,000 sq. m. floor area) with a 3–5 M deep sump needs flow rates of approximately 2,000–8,000 LPM at 5–10 M head for routine drainage. The CDW Standard at 5–10 HP covers this range. For basement areas that receive combined stormwater and sewage, specify the CNC Non-Clog at 6–10 HP, which passes 70mm solids without clogging on fibrous waste. For exact sizing, contact Cosmos Pumps at +91 99333 22238 with your pit dimensions, inflow estimate, and whether the drainage includes sewage content.
Cosmos Pumps manufactures and rents drainage pumps from 1.5 HP to 1,550+ HP, with 2,500+ customers served across 5,000+ completed projects in India and 22+ export countries. For a drainage pump specification matched to your site requirements, contact the team.
It removes unwanted water from a site. It pushes or pulls water through pipes to keep areas dry.
For detailed product specifications, flow ratings, and application guidance, see our drainage pump range page.
A drainage pump handles surface water. A dewatering pump is often used for deeper groundwater.
They are used in construction, mining, cities, and factories. They work wherever water needs to be removed.
Check water volume, depth, and site needs. Our team can guide you to the best option.
Yes, we supply both electric and diesel options. You can choose based on your site.
Yes, they are built to meet global standards. They work well in any country.
Yes, they can handle solids and muddy water. They are strong and reliable.
Our pumps last for many years. With care, they can serve even longer.
Yes, we give full support with spares. Our service team is always available.
You can contact us directly for a quote. We also provide brochures on request.
Drainage pumps in India are used for removing water from construction sites, industrial areas, and residential basements.
Cosmos Pumps offers drainage vacuum pumps, drainage suction pumps, and general drainage pumps for various applications.
You can contact suppliers to get guidance and request quotes for pumps suitable for your project needs.
In Qatar, drainage pumps are used for construction site dewatering, industrial water management, and flood control.
Drainage pumps help remove excess water efficiently, ensuring smooth operation in construction, industrial, and municipal projects.
In the UAE, both submersible and centrifugal drainage pumps are used for construction, industrial, and commercial water management.
Cosmos Pumps is a trusted supplier in Qatar, Saudi Arabia, and the UAE, providing durable and efficient drainage pumps for all applications.