DARLING PUMPS SUBMERSIBLE PUMPS
Darling Pumps is a leading Indian manufacturer of submersible pumps, ISO 9001:2015 certified, with over 42 years of experience designing SMART pumping solutions for construction, mining, municipal, industrial and agricultural applications. Pankaj Enterprises supplies the full Darling Pumps submersible range — dewatering, waste water & non-clog, slurry, and clear & raw water pumps — backed by genuine spares and after-sales support.
Submersible Slurry Pump
Heavy-duty pumps engineered to hydraulically transport slurry — a mixture of liquid, usually water, and abrasive or non-abrasive solid particles. Available across Dredger, 4HD and Cantilever series, each customised for particle size, specific gravity, concentration and shape.
Product Description
Slurry can be classified as non-settling or settling, and selecting the right pump depends on particle size, the specific gravity of both solids and liquid, slurry concentration and particle shape. Darling Pumps offers the Dredger (4DRR) series with a semi-open, abrasion-resistant impeller and built-in agitator & jetting arrangement for desettling, and the 4HD series with a replaceable twin volute diffuser and a unique jacketed design that keeps pumping in small pits while guarding against dry running at liquid temperatures up to 90°C.
For extreme abrasive duty, the Cantilever (CL) series eliminates submerged bearings, stuffing box or shaft seal entirely — anti-friction, grease-lubricated bearings sit outside the slurry path, so there is no need for a service-water flushing pump.
Applications
- High abrasive slurries
- Mill scale, iron ore & pellet slurries
- Mineral ore processing units
- Ash & coal handling plants
- Granite & marble slurry
- Industrial waste removal
- Jack well / intake well cleaning
- Removal of sand deposition at dam galleries & penstock tunnels
Key Features & Benefits
- Abrasion-resistant semi-open impeller with hydraulically balanced axial thrust
- Fully covered heavy-duty shaft not exposed to pumpage liquid
- Adjustable, replaceable wear plate to restore clearances for efficiency
- Dual mechanical seals with seal sensors to detect water ingress
- Built-in abrasion-resistant agitator & in-built waterjet / jetting arrangement
- Replaceable High Chrome / Ni-Hard wear parts to cut maintenance cost
- Replaceable twin volute diffuser & jacketed design (4HD series)
- Cantilever (CL) design with no submerged bearing, stuffing box or shaft seal
- Options for pontoon-mounted pumps, high-temperature slurries up to 90°C and 60 Hz operation
Technical Specifications
| Product | Submersible Slurry Pump — Dredger (4DRR) / 4HD / Cantilever (CL) Series |
| Rating | Up to 200 HP (Cantilever up to 120 HP) |
| RPM | 1450 / 960 (nominal) |
| Frequency | 50 Hz (60 Hz on request) |
| Supply | Three phase – 415 V |
| Motor | Wet type / Dry type; Flange or Foot Mounted (Cantilever) |
| Liquid Temperature | Max 90°C |
| Liquid Density | 2.8 gm/cc |
| Solid Passage | Up to 32 mm |
| Solid Concentration | Up to 65% by weight |
| Impeller | High Chrome, Ni-Hard, Hardened SS |
| Shaft | SS / SS-431 |
| Wear Plate / Agitator | High Chrome, Ni-Hard |
| Mechanical Seal | SiC vs SiC, TC vs TC |
Related Darling Pumps Products
Submersible Dewatering Pump
DS, DJ, DJC, TH, TL & JL series up to 100 HP for construction & mining sites
- Wear-resistant SS impeller passing solids up to 25mm
- Inbuilt controller against dry running & single phasing (up to 10 HP)
- Ideal for basement, storm water & mine dewatering
Waste Water Submersible Pump
Non-clog, waste water & vertical wet pit series up to 300 HP
- Choice of vortex, radial or channel impeller for solids up to 100mm
- Vertical wet pit variant for column lengths up to 6 m
- Ideal for municipal sewage, ETP/STP & industrial effluent
Clear and Raw Water Pumps
S & M series open-well pumps for clear & raw water up to 300 HP
- Compact design, can be installed vertically or inclined
- Head up to 140 m in a maximum of 4 stages
- Popular for agriculture, industrial & municipal water supply