Dong Filsø Allweiler PC pump with Equal Wall technology 48 bar

In 2010, Copenhagen Pump was contacted by Dong for delivery of an ATEX approved 48 bar progressive cavity pump.

At Dong's Filsø receiving station, Copenhagen Pump designed and delivered a pump solution for a somewhat unconventional pumping task, namely return pumping of contaminated water from the natural gas pipeline from the North Sea fields.
The solution was based on Allweiler's EW Equal Wall technology, where the stator's metal casing follows the inner profile of the stator. The advantage of this technology is that compression of the rubber compound in the stator is not as easy to achieve. This makes it possible to achieve a higher pressure per pump stage. With this construction we could design a short pump with a discharge pressure of 48 bar, which was necessary for this task.
The pump had to be designed according to the ATEX directive, which affects the choice of shaft seals and the general safety instrumentation around the pump, which must also be ATEX approved.

Pump
Liquid water containing hydrocarbons
Capacity of the pump
Pressure: Pressure
Service: The pump has been in operation since 2013 and is not expected to have needed replacement parts yet. However, the pump only has limited daily operating time.