Inner-city refurbishment requires low-noise pump system

Refurbishment projects in the city centre are always challenging and require the contractor to adopt a smart approach that takes the surroundings into account. Consider, for example, noise pollution restrictions, uninterrupted road access and the limited space available for the works. During the refurbishment work to repair and strengthen the quay walls in Dordrecht, the vibration caused by the machinery was also an important aspect. Eekels Pompen supplies appropriate pumps and accessories for this type of project.

Dordrecht boasts more than 900 national monuments and more than 650 municipal monuments. One of the national monuments, the Grote Kerk, with its unconventional architecture, has towered above the harbour since 1367. Refurbishment work to repair and strengthen Lange Geldersekade, where the church is located, is scheduled this year. However, these historic surroundings and the busy flow of traffic and pedestrians in the city centre are sure to make this a challenge.

Cofferdam

The contractor needs to build a cofferdam in the canal itself in order to carry out refurbishment of the canal walls. This cofferdam will be pumped dry, creating a space for the work on the canal walls. If space on land is limited, the contractor will use a pontoon to place machines, such as cranes and pumps, in the cofferdam. For the work activities in Dordrecht, our customer was looking for a pump that could pump the water away from the area between the quay wall and the cofferdam sheet piling and discharge it into the inland harbour.

Sound-attentuated pump system

In response to our customer's request, we supplied two Betsy 125M diesel engine pumps to pump the cofferdam dry. These pumps are ideally suited to this type of project thanks to their good vibration characteristics and low-noise operation. Old monuments are often sensitive to vibration, which can cause cracks in the walls.

The Betsy pump is also an extremely reliable pump, given its ability to pump liquids containing large solids effortlessly. Objects such as the street rubbish that ends up in the canal. This specific feature is a result of its large free passage size and its unique screw centrifugal impeller.

Equipment and services provided:

This system allows the contractor to pump 660 cubic metres of canal water per hour at peak times. And, because the pump is extremely fuel-efficient, the user also spends less on fuel. Thanks to our pumps quietly humming in the background, the project in Dordrecht is running smoothly. According to the plans, the refurbishment works should be completed by the end of May 2019.

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