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A GUIDE FOR SYSTEM DESIGNERS
The presence of uncontrolled quantities of air in water systems can seriously affect their performance, causing inefficient filling and draining procedures and flow reduction, while increasing energy costs. It also disrupts the operation of some of
the system’s components.
How can water utilities save 30% of domestic water consumption and still supply water to the public at the required pressure? With the help of BERMAD’s technological water-saving solutions.
Simple, smart, and robust hydraulic solution for Yara International in Norway
To solve complex challenges, simple solutions are required. Norwegian company Yara International, an industry leader in manufacturing agricultural fertilizers, issued a tender for a water pressure control system with strict requirements. They required a simple solution for high pressure reduction with 24/7 water supply with high flow rates — with no redundancy!
In this in-depth webinar, we examine the causes of pressure surge in hydraulic systems and under which scenarios, whether it’s possible to prevent surge from happening, and most important, review available surge solutions in the market. We also take a look at surge analysis procedures and show modelling of a large-scale system for a major Ethiopian project.
Designing a turnkey water supply solution on for Mekorot, Israel's national water company proved to be a major engineering challenge for BERMAD. The Tzafit project involved connecting the Dead Sea to the national desalination system through a 46 km pipeline, beginning at Tzafit pools (450 meters above sea level) and descending to the Dead Sea (380 meters below sea level). This creates extremely high pressure of 83 bar, which needs to be reduced to 5 bar, the standard pressure for domestic use.
In a recent BERMAD webinar, “Air Valves Sizing and Positioning using BERMAD Air Software,” Tal Levi, our Waterworks Application Engineer, talked about the challenges of proper air control in water system design.
In a recent BERMAD webinar, “Optimal Air Valve Selection for Water Systems,” our application engineer Tal Levi presented tools to optimize the selection of air valves, parameters affecting performance, and premature kinetic closure.
Jerusalem is the capital city of Israel, and it is located in the middle of the country. In addition to the large number of tourists visiting this historical city annually, Jerusalem also has a population of more than 900,000 people, and in 1994, the yearly drinking water consumption was approximately 60M cubic meters; 2,120 cubic feet. In order to meet the future demand of a rapidly growing population, as well as overcome the challenges posed by an ageing infrastructure, Mekorot (the Israeli national water company) decided to implement a new pipeline system. The objective was to deliver water from the national aqueduct and deep wells near the coastline to Jerusalem.
Proper air control is a vital factor in water system design. Appropriate sizing and placement of air valves is critical to avoid water hammer, head loss, and to achieve optimal efficiency and system longevity. Choosing the right valves for the job is a complex and time-consuming task that requires the designer to take a great number of factors into account, not the least of which includes keeping system costs within budget.
Whether caused by pump start-up, shut-off, valve closure or unanticipated event such as abrupt power failure which leads to pumps trip, unintended pressure surges can develop and wreak havoc on a water system. BERMAD offers a package of services and products to prevent water hammer damage to pipes, valves, and any other hydraulic components in potable water, sea water, and wastewater systems.