Local fluid conveyance and pumping solutions pro- vider Incledon pumps and irrigation product manager Bruce Crystal, says the company has been an official distributor of the Nastec range of variable speed borehole pumps and inverter package in South Africa since 2012 and plans to increase its range

of models from 6 to 13 during the course of this year, to provide a more compre- hensive offering to the local market.

“By expanding the product range, Incledon can ensure that it covers a broader spectrum of the market.”

Crystal says the Italian-manu-factured range of pumps is ideally suited to the local irrigation, con- tracting, residential and agricul- tural sectors

because the pumps can be used to irrigate directly from a borehole, while the pump will yield the duty required within its range.

“This eliminates the need for an expensive and unsightly water tank and a pressure booster pump, which have to be installed with standard borehole pumps. “The reduction of these components not only saves the user overhead costs, but also reduces the power bill in a country that has unprecedented electricity rate hikes yearly,” he explains.

For end-users with potable borehole water, the stainless steel Nastec pump range can be connected directly to the property and can serve as a pressure booster pump for properties that lie in low municipal mains pressure areas.

Crystal says it is also important to note that the variable-speed drive (VSD) motor only uses the amount of power required for each specific application.

“Frequency modulation of the VSD pump motor ensures that when demand is low, power consumption will reduce accordingly. “On the whole, the Nastec range can be used in any borehole application that requires on-demand flow, at an on-demand pressure that falls within its specified range of flow and pressure,” he continues.

The Nastec borehole pump models available through Incledon include the 4HS – 02/04, which has a flow range of 8.3 ℓ/min to 50 ℓ/min and has a head range of 1 m to 105 m; 4HS – 02/08, which has a flow range of 8.3 ℓ/min to 50 ℓ/min and a head range of 12 m to 190 m; 4HS – 04/03, which has a flow range of 16.7 ℓ/min to 100 ℓ/min and a head range of 12 m to 83 m, 4HS – 04/05, which has a flow range of 16.7 ℓ/min to 100 l ℓ/min and a head range of 19 m to 126 m.

Additionally, Incledon stocks the Nastec 4HS – 06/02, which has a flow range of 33.3 ℓ/min to 150 ℓ/min and a head range of 6 m to 56 m; as well as the 4HS – 06/04, which has a flow range of 33.3 ℓ/min to 150 ℓ/min and a head range of 12 m to 104 m.

Crystal highlights that another impressive feature of Nastec is the indication of the wide flow range granted by the pumps for each set pressure.

“For example, if you take the 4HS 04-03 pump and set a constand pressure of 4 bar, you may have a flow range from 0 ℓ/min to more than 90 ℓ/min. “This characteristic is exclusively achieved by the 4HS, thanks to its wide frequency modulation from 50 Hz to 110 Hz.

“

Industry-standard submersible pumps controlled by an external inverter typically have a frequency modulation range of just 36 Hz to 50 Hz,” he says.

Crystal says, in other words, it is extremely small compared to the 4HS; with fewer models, consumers can cover a wider range of hydraulic performances. To achieve the same outcome using fixed speed pumps, consumers need several motor sizes and several wet-end models to be combined.

Crystal says that Nastec has the internationally recognised Conformité Européenne (CE) quality mark and is compliant with numerous additional certifications, including; EN ISO 12100, EN 55014-1, EN 55014-2, EN 61000-3-2, EN 61000-3-3, EN 60335-1 and EN 60335-2-41.

“Nastec sets itself apart from the competition, as it boasts high-quality, advanced technology, which is competitively priced,” he continues.

Crystal notes that the initial purchase cost is the largest challenge for Incledon in promoting the Nastec range.

“At face value, older technology is still cheaper; however it is important for end-users to bear in mind that they will be eliminating extra required capital purchases, such as a water tank and booster pump, which are required in normal installations. “Older technology also involves the extra electricity consumption by the borehole and booster pumps, which run at their full power capacity constantly.”

“Nastec has the potential to dominate the local market, with these innovative borehole pump options as end-users begin to fully understand the power consumption benefits and subsequent energy bill reductions of the range,” Crystal concludes.