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Project Details

  • Location: Spain
  • Year: 2019

Project Description

The problem

In the Water Treatment Station of Torrelaguna (Madrid) they had quite a complex problem, they had to repair the pools where the silica sands used to filter the water were deposited. The problem is that it has 25 pools with these sands and the only way to evacuate those sands was manually, so the work was long, expensive and tedious.

The solution

After analyzing the problem, CRAMIX, Dragflow’s exclusive representative in Spain, together with Dragflow’s support, proposed to install a submersible Dragflow Dredging pump that is ideal for the pumping of fluids with great concentration of solids. The selected pump was a DRAGFLOW EL7.5SS which is part of the super heavy-duty range being able to pump mixture densities up to 1800kg/m3. The pump comes complete with a double mechanical seal arrangement and a top discharge that allow the pump to work in very shallow areas, using the pumped fluid to cool the electric motor.

1 month after the supply of the pump, the customer is VERY satisfied, as they can pump out the silica sands in half the time, reducing costs compared to the previous strategy of manual extraction. The operators are also very satisfied, as the work passed from very tedious and harsh, to simple and quick.