Tough pumping applications such as on mine and construction sites need a proven range of drainage pumps that are heavy-duty but offer low total cost of ownership.
That’s according to Jordan Marsh Sales Manager of Integrated Pump Technology, an authorised southern African agent for the Grindex pumps brand who said drainage pumps are most suitable when users need to pump large quantities of dirty water, but still need to achieve heads of up to 200 metres, or flow rates of up to 350 litres a second.
He said the Grindex range of drainage pumps handle water with abrasive solids up to 12 mm in size, and with high pH values from five to eight. The unique valve enables air cooling of the motor so they can run dry without a problem, which means they “don’t need babysitting”.
On the small end of the range, the Micro, Milli and Mini models are compact, lightweight and ultraportable. The Micro model’s low power consumption makes it ideal when running on a generator. The Milli looks similar to the Micro, but enables low suction down to only a few millimetres, thanks to the unique non-return valve.
In the medium section of the Grindex range are the Minex, Minette, Minor, Major, Master and Matador. “The revolutionary hydraulic design ensures high wear resistance and dramatically reduces any performance drop that may result from long-time wear.
“With their internal starter, SMART motor protector and optional level regulator, these pumps provide fully automatic protection and control without the need for external starter,” Marsh said. “The soft starter means smoother motor acceleration, thereby protecting the pump while reducing equipment wear and mechanical stress.”
There are two large Grindex drainage pumps – the Magnum and the Mega.
“The Magnum is relied on for the toughest jobs, with high quality, reliable design combined with the ease of maintenance.” Marsh added the Mega is made of cast iron and ideal for operating in deep excavations where very high-head pumping is needed. Designed to handle pH levels from six to 13, it can also be fitted with zinc anodes for extra protection.
