Darling Pumps - Dredger Pumps, Slurry Pumps, Submersible Pumps and Dewatering Pumps

Darling Pumps manufactures sewage, wastewater, dewatering, ETP, slurry, dredging, aeration, irrigation, water supply, fountains and cascades, high-rise buildings and aqua-culture pumps.

SUBMERSIBLE SLURRY PUMPS

Submersible heavy-duty slurry pumps handle settled and very-abrasive slurries containing solids of desired size and concentrations up to 50%.

DREDGER PUMPS

Darling abrasion-resistant dredger pumps are ideal for the tough Indian working and climatic conditions, and can be maintained on-site. The agitator on the main shaft enables them to rise, and convey liquid and mixtures with medium-high specific weight.

DR SERIES DREDGER PUMPS

The Darling DR series dredger pump's advanced agitation system, special sealing-system and motor design provide reliability and lower installation-costs, and reduce the frequency of sump pump failures.

The Darling DR series submersible dredger pump's compact design eliminates the overhead support structure required by a vertical sleeve bearing or cantilever pump. Pump installation and removal times are significantly reduced, and the time and expense of pump- to-motor alignment eliminated.

SUBMERSIBLE DREDGER PUMPS

As the dredger pump is submersible, plant flooding does not disrupt it, and mechanical-seal failure due to dry running is eliminated.

An external clean water support system for sleeve bearings and packing box lubrication and cooling is unnecessary, minimising water-treatment costs.

An agitator prevents solids from blocking the pump inlet and mixes them with the liquid, creating slurry that can easily be handled by the dredger pump.

RELIABLE DREDGER PUMP MOTORS

To reduce motor failure, the sealing of our heavy-duty dredger pump motors ensures no seals have direct contact with pumped liquid which may contain abrasive particles.

The motor is wound with high-temperature resistant, polypropylene coated, waterproof, submersible winding-wires, and protected with both a moisture protector, and thermal protection to prevent over-heating. This ensures a uniform temperature and better heat-dissipation, and stops external media entering.

The DR series is one of the most rugged dredger pumps available.

DREDGER PUMP SEALING-SYSTEM

The seal-faces work in an oil bath which provides better heat dissipation and lubrication, increasing lifespan and improving reliability. The silicon-carbide primary seal is mounted in clean oil, providing constant lubrication and cooling to its faces. The other side of this seal is exposed to pump age, maximising heat transfer to ensure a cooler running-seal.

MINIMAL SHAFT-DEFLECTION

DR series dredger pumps' shaft-stiffness ratio (L3/D4) of less than 30 minimises shaft deflection, maximising the mechanical seal's effectiveness.

HOMOGENEOUS-FLOW IMPELLER VANES

A large passage ensures efficient pumping at all times. The impeller vanes are designed to ensure a homogeneous flow, minimising the separation of solids from the carrying liquid, ensuring extremely-low wear rates and sustained hydraulic efficiency.

The impeller is hardened for maximum wear-resistance, guaranteeing reliable operation and a long lifespan.

EXTRA-HEAVY DUTY DREDGER PUMP BEARINGS

Extra-heavy duty bearings take different loads during dredging.

DREDGER PUMP CASING

The casing is designed and contoured not to clog, with extra thickness at wear points. A horizontal centreline discharge outlet ensures operational stability and balance.

DREDGER PUMP MATERIAL AGITATOR

The hard-wearing, impact-resistant material agitator mixes, homogenises and transports slurry.

WATER-JET NOZZLES

The water-jet nozzles are angled to mix and move settled solids and improve agitation effectiveness.

OPEN WELL SUBMERSIBLE PUMPS

SinkoBloc open well submersible pumps incorporate the advantages of both surface mounted monobloc pumps and bore well submersible pumps. They are used in open-water bodies for pumping clear water.

Available from 0.37kW to 55kW, and heads up to 150m, they can discharge up to 850m³/hr.

SUBMERSIBLE UNCLOG-PUMPS

Darling Pumps' submersible unclog pumps are ideal for handling raw sewage, slurry, effluent and industrial waste. Submersible unclog pumps can handle solids up to 125mm from 2.2kW to 55kW, with heads up to 52m and discharge up to 900m³/hr.

JUMBO DEWATERING PUMPS

Jumbo dewatering pumps are economical and compact in design, lightweight, and easy to install and maintain. They also feature centre line discharge, and can be used for pumping water contaminated with sand and gravel.

Jumbo dewatering pumps are available from 1.1kW to 55kW with heads of 75m and discharges of 750m³/hr.

LITTLE JUMBO DEWATERING PUMPS

Little jumbo dewatering pumps are used for a wide variety of dewatering applications. Little jumbo dewatering pumps are available from 0.55kW to 1.5kW in single and three phases, for heads up to 21m and discharges up to 40m³/hr.