Tag Archives: Integrated Pump Technology

ROBUST GRINDEX BRAVO SLURRY PUMPS OFFER WHAT AFRICA NEEDS

Tough operating conditions are the norm in the mining sector, and even more so when it comes to slurry pumping applications. If incorrect pump choices are made in these demanding applications it can lead to high maintenance and repair costs and even catastrophic failures.

Colin Adams, managing director of Integrated Pump Technology, says the company often receives enquiries from African-based mining operations who have already made the mistake of not specifying high quality OEM products.

“Slurry pumps need to be up to the task of handling high volumes of abrasive material, and when this is not the case these failures lead to costly production downtime with the obvious knock-on effects,” he says. “For a number of years we have been cautioning the market and urging mine operators to carefully consider the overall total cost of operating slurry pumps when making decisions on which units to install.”

Integrated Pump Technology is the authorised distributor for Grindex submersible pumps and included in its product lineup is the well-respected Grindex Bravo range. Adams says these robust, durable and high performance pumps offers a good return on investment as the units are engineered to achieve lower operating and maintenance costs.

Commenting on why a submersible slurry pump is a better option for slurry pumping, Adams says that submersibles offer several benefits over dry-mounted pumps. They do not require any support structure, need less space for operation and are very easy to install.

The Grindex Bravo range are produced to operate over the complete pump curve, not just one specific duty point. This means that the pump can be used in numerous applications within its range and it is not a case of “one pump – one application”.

Grindex Bravo pumps are fitted with a cooling jacket and an agitator for effective slurry pumping. Pumps in the range can handle slurry and fluids with a high content of highly abrasive solids in sizes up to 50 mm at maximum heads from 17 to 45 metres. Wear is reduced by using NiHard 4 for all hydraulic components, and these pumps can handle liquids with pH values from 4 up to 10.

Adams also points to the high level of support that is available to customers across Africa through Integrated Pump Technology’s extensive distributor network which is underpinned by the company’s experienced technically competent African team. Ready access to parts also forms part of the support system, ensuring optimum uptime for customers.

GRINDEX PUMPS MOVE SAND SLURRY WITH EASE

Sand slurry can be one of the most challenging pumping applications as the material being transferred is thick, abrasive and contains coarse particles that often form an unstable mixture.

Colin Adams, managing director of Integrated Pump Technology, says that sand slurries also often contain corrosive elements and sharp particles including stones which could result in excessively high wear with a dramatic reduction in pump life.

“Pumping sand slurry can be tough on pumps and it is critical that the correct pump be selected for this demanding application,” Adams says. “Attention needs to be paid to the flow requirements and power calculations when determining which pump is most suited to an individual application. Most importantly, these sorts of pumping tasks require more power to operate than that required by a clean water pump.”

Integrated Pump Technology has reported continued success with its Grindex Bravo pumps replacing vertical spindle pumps in these applications.

Apart from the obvious advantage that a submersible pump offers over a vertical spindle pump such as its ease of installation, the innovative design of the Grindex Bravo range ensures minimal contact with the actual sand slurry being pumped.

Adams says that these pumps have been engineered to deal specifically with complex slurries, and have an integrated agitator system that allows the slurry to be placed into suspension for easier pumping.

“The majority of pumps do not have this feature and agitation therefore needs to come from an outside source increasing the cost of the installation as well as the maintenance required in that application,” he says.

Commenting on potential increased wear in these applications, Adams says that the hydraulic components are made from N-Hard 4, one of the hardest materials available today. This ensures optimum wear life.

The Grindex Bravo pumps are engineered to operate over the complete pump curve, not just on specific duty and can handle from 30 litres per second up to 130 litres per second at a maximum head of 45 metres. The slim compact design facilitates quick and easy installation, while low noise level operation is another advantage.

Lower operating costs are also possible. These high efficiency pumps are known for reduced electrical consumption and as well as lower maintenance costs. An integrated pump starter protects the unit from dry run conditions and also allows optimum control of the pumping operation.

In addition, the unique Grindex “SMART” motor protection feature prevents pumps from single phasing, overheating and backward rotation.

The pumps incorporate an innovative hydraulics section with a closed impeller that reduces the performance drop sometimes caused by long term wear. The impeller is easily adjusted and this ensures stable dewatering during the whole life of the pump.

MORE ABOUT INTEGRATED PUMP TECHNOLOGY
Integrated Pump Technology is the sole importer and principal distributor for the Grindex range of dewatering, slurry and sludge pumps for southern Africa. The company’s product line-up also includes Faggiolati submersible drainage and wastewater pumps, mixers and aerators and Oerlikon Leybold Vacuum pumps.

A network of 16 strategically located, specialised pump distributors supported by dedicated account managers ensure effective service and customer support. Grindex submersible pumps have been available in South Africa for 25 years and are a household name in mine dewatering.