Green pump technology against the drought

In 2017, the demand of water supply in the capital city Amman increased rapidly due to population growth. Therefore, the Jordan Water Company (Miyahuna) and Water Authority decided to get more water from Heedan Well field to reduce the shortage in demand for Amman. Built in the 1990s, the pumping stations Wala and Lib supply 184,000 people in the city and the surrounding area from the Madaba Reservoir. They have a common supply source and a controllable distribution system with Heedan Well field. While Wala transports 1,500 cubic meters of water per hour to Madaba over a distance of 2.6 kilometers, Lib delivers 1,500 cubic meters over a distance of 17 kilometers to Amman.

In 2018, six new high efficiency pumps were installed to increase the total flow of the pump station Lib to 2,500 cubic meters per hour. These high efficient pumps were selected from the international technology group ANDRITZ and have achieved very good results since being put into operation. The new system should deliver energy savings of up to 20 percent and savings of 313,000 Jordanian dinars, which corresponds to roughly 440,000 US dollars.

For over 165 years, ANDRITZ has been a byword for designing and manufacturing customized pump solutions at the highest technological levels. The high standard of ANDRITZ pumps is based on decades of experience in designing hydraulic machines and extensive know-how. Against this background as well as the more energy-efficient pumps and a worldwide reference portfolio, ANDRITZ has been awarded the contract to refurbish the two stations with a total of 12 pumps by the end of 2018. These include six high-pressure pumps from the HP43 series and six multi-stage, axially split case pumps from the ASPM series.

The ANDRITZ multi-stage, axial split case pumps is a highly engineered pump designed to customers’ specific requirements. Its multi-stage impeller arrangement that can be combined in different ways to fulfill different application needs. In addition, the machine is calculated and designed to withstand all load cases which might occur during the lifetime of the pump. Peak outputs of up to 40 MW, flow rates of up to 10 cubic meters per second and a cost-effective construction using barrel casings make this technology particularly effective.The axial split design is maintenance-friendliness even at high heads of up to 1000 meters. Thanks to the excellent efficiency, which is above the industry average, and the speed-variable drive, this series is characterized by its low energy consumption.

In the Wala and Lib pumping stations, in addition to the multi-stage, axial split case pumps also ANDRITZ high pressure pumps from the HP43 series are installed. Due to their high efficiency, they have a strictly ecological orientation. These pumps save a tremendous amount of energy, which pays for the investment within a short timeframe. Behind this technology are many years of product experience, a globally operating technology network, and use of the very latest simulation and test stand technology. The modular machine can be gradually expanded as needed. It is offered in both horizontal and vertical design. Suction and discharge nozzles can be arranged variably depending on the intended use. With nominal sizes of 40 to 200 millimeters, in the first expansion stage, it reaches delivery rates of up to 850 cubic meters per hour at up to 40 bar discharge pressure. In the second stage even up to 63 bar.