These new submersible borehole pumps developed by KSB have a diameter of up to 50 inches, i.e. 1250 mm, and a drive rating of up to 5 MW. These pumps will be capable of handling

• flow rates of up to 5000 m³/h
• at heads of up to 1500 m.

Compared with dry-installed pump sets, the advantage of submersible borehole pumps is -acc. to an information of the manufacturer- “the notably longer service life and the fact that pumps with wet motors are not compromised by flooding.” KSB is one of the few manufacturers worldwide to offer double-entry designs for particularly high load conditions alongside “normal” single-entry designs.

This double-entry design was originally used for drainage applications in mines. The heads required in these applications would have created very high axial thrusts in single-entry pump designs, placing extremely high loads on the bearings. The back-to-back impeller arrangement employed in double-entry designs not only reduces the axial thrust but also the associated bearing loads.

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The KSB Group extended its portfolio by adding a comprehensive programme of vertical turbine pumps. The so-called B Pumps are multistage vertical turbine pumps with a submerged hydraulic system. The pump sets comprise a discharge casing assembly, a column pipe and a pump bowl assembly. In total, customers can choose from 17 sizes with three different impeller types.

• The pump sets cover heads of up to 200 metres.
• Flow rates of up to 720 l/sec.
• Available with one to 25 stages,
• with stage casing diameters ranging from six to 24 inches.

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One of the most important museums of contemporary art in Italy, the famous Palazzo Grassi in Venice, is able to considerably improve its energy balance due to the use of pumps with highly efficient, intelligent drives. The pumps and valves to modernise the heating and air-conditioning systems were supplied by pump manufacturer KSB.

For a building of historical and architectural significance, maintaining a particular room temperature and humidity as well as air quality is a costly and major challenge. After a careful analysis of the energy consumption, those responsible for building management started an extensive refurbishment project in 2015. Planning and installing a completely new pumping infrastructure in a historic building presents a great challenge since the building was not designed for such equipment.

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With the use of the permanent magnet technology, oddesse pumps and motors factory developed an energy-efficient pumping system to support water supply companies to sustainably reduce energy consumption and thus contribute to the protection of the environment.

In the past, the efficiency of pump systems was often calculated by solely considering the efficiency of the pump. The efficiency of the motor, on the other hand, which is determined by the ratio between the electrical input and the mechanical output, has been largely ignored. However, the overall efficiency of the complete pumping system has an impact on the energy costs, which, as the decisive factor, account for more than 80% in the efficiency analysis. By optimizing the overall system, the greatest savings in electricity costs can be achieved.

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Facing the worst drought on record in the Colorado River Basin, as lake levels continue to fall, the Southern Nevada Water Authority (SNWA) is building a low lake level pumping station to ensure Las Vegas and Southern Nevada maintains access to its primary water supplies in Lake Mead. Lake Mead water levels have dropped more than 40 m (131 feet) since the drought began in 2000. The new pumping station will allow SNWA to pump water from Lake Mead from an elevation as low as 267 m (875 feet) above sea level into the water treatment facilities and further on to provide water to the city of Las Vegas and neighbor community area.

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As a replacement to conventional submersible pumps, the manufacturer Hermetic supplied two 8-stage, sealless canned motor pumps. The distinctive feature of the transformation was the customized adaptation of the pumps to the existing plant and its vessels. The pumps were designed for easy installation in the existing tank (with a diameter of 500 mm). The customer, a Swiss fine chemicals manufacturer, thus saves the costly, time-consuming conversion of the existing systems in its production plant.

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Pumpex has been a part of Sulzer since 2011. Sulzer has formed a new business segment called Mining and Construction in 2016. This business segment will include all Sulzer dewatering activities worldwide. All product brand names currently used in this area will be terminated during 2016 in order to create one strong Sulzer brand for all dewatering products.  As a result, the Pumpex brand name will be phased out during 2016.

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The new pump series is developed for the pumping and recirculation of activated sludge in wastewater treatment plants during the nitrification and denitrification process, as well as for the pumping of storm, surface, and river water. It complements the submersible recirculation pump series ABS RCP. These submersible pumps are optimized in low energy consumption to bring savings in total life-cycle costs and reduce the environmental footprint.

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KBL’s (Kirloskar Brothers Limited) new “i-NS” pump is a non-clog sewage submersible pump designed for dewatering function in the

• water & wastewater treatment industries,
• sewage,
• building & construction and
• other allied segments.

The compact size of the pump helps in minimizing submergence, and it comes with an aesthetically-improved design for maintenance-free work.
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The new Hidrax™ HT thrust bearings are developed for high-temperature applications in electric submersible pumps. These pad bearings can sustain unit loads of 8 MPa (1160 psi) at oil bath temperatures up to 300°C (572°F).

Technological advances in steam-assisted gravity drainage are increasing operating temperatures and placing increased demands on the thrust bearings located in the motor seal/protector section of the electric submersible pumps string.

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