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!
The challenging requirements were made more complex by the topography of the village of Glomfjord, Norway. The plant’s water supply comes from two reservoirs: one at an elevation of 170 meters above the plant, creating enormous pressure of 17 bar — especially when the system is designed for flow rates of 300–5,000 cubic meters per hour.
In order to meet the challenge, Bermad’s engineers designed a system that would provide reliability, simplicity, and back-up, and automatically regulate pressure & flow without energy or an external power source.
Each branch in the system has two valves to ensure backup and continuous water supply 24/7. Each control valve operates independently and reduces high-inlet pressure to a constant downstream pressure at the entry to the plant, despite the demanding range of flows in the system. In case of malfunctions or extreme pressures in the pipes, the backup systems take control automatically without the need for human intervention.
The pressure-reduction system began operation in June 2017 and was so successful, a second plant has been designed by BERMAD. See this simple, smart, and robust hydraulic solution in action.