Dubai Deep Tunnel Stormwater System Gets World's Largest Penstocks

Nov. 10, 2020
Installed and designed by Ham Baker, the penstocks will play an integral role in controlling the flow in the water system designed to handle up to 6.5M cubic meters of rainwater.

Ham Baker, recognized as a world leader in penstock design and build, has completed what are thought to be the biggest and highest specification penstocks ever built anywhere in the world.

The 3000 mm wide by 5000 mm deep (approximately 10 by 16.5 feet) Stainless Steel Super Duplex S32750 penstocks, which are capable of 63.9 on/off seat pressures, are to be deployed in Dubai as part of the Deep Tunnel Storm Water project that commenced construction in 2018.

The Dubai Deep Tunnel Storm Water System is being built by the Dubai Municipality to protect homes and businesses from the impact of flooding and rising groundwater. The project will drain 40% of the entire urban area of the city. It will serve the whole of Dubai South, which is home to Dubai’s new airport. The system has five elements: a groundwater and stormwater collection network; a 10 km, 10 m diameter, 45 m deep tunnel; a holding pond; a high-efficiency pumping station; and a sea outfall.

The penstocks, installed and commissioned by the Ham Baker team, will be hydraulically operated and will play an integral role in controlling the flow of water in a system that has been designed to handle up to 6.5 million cubic meters of rainwater. Ham Baker was commissioned with the build due to their reputation as experts on penstock design and build.

The team at Ham Baker 3D modeled the penstocks using cutting edge design software and the finished penstocks were subjected to rigorous testing in a brand-new facility at the operating site in Stoke on Trent (UK) that is capable of testing penstocks of this magnitude.

David Pye, Sales and Marketing Director for Ham Baker said of the build,“ It was rewarding that Ham Baker was approached to provide these penstocks, our legacy and reputation as experts in this field is undoubted, and after many months of design and build the team are on the ground in Dubai, installing and commissioning as we speak.”

About Ham Baker
Established in the 19th Century, Ham Baker Limited is a global organization dedicated to the design and manufacture of innovative products, for the water, wastewater, and process sectors. The group designs completely engineered solutions, with experts on hand across all sectors to cover customers' individual process and flow needs.

A fully equipped in-house manufacturing facility complemented by state-of-the-art design facilities provides customers with bespoke engineered solutions, capable of operating to industry-leading standards. A dedicated research and development team, working in conjunction with world-renowned universities, delivers innovative solutions to process applications, providing significant infrastructure benefits to customers.

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Nov. 10, 2020