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Tsurumi pumps keep railway tunnels on track

Tsurumi pumps have been selected to work in the exploration shafts leading to the site of a planned high-speed railway tunnel through the Alps from Lyon to Turin.

Tsurumi pumps keep mud and water out.
Tsurumi pumps keep mud and water out.

Tsurumi pumps have been selected to work in the exploration shafts leading to the site of a planned high-speed railway tunnel through the Alps from Lyon to Turin.

Tsurumi pumps are responsible for progression of the access tunnels on the French side of the border, and during construction will provide a route for excavating waste materials from the excavation process.

There are currently 1800 different pump models in the Tsurumi range, including semi-vortex, vortex, non-clog, cutter, contractor & dewatering, sewage & wastewater, aerators & blowers, decanting units and scum skimmers.

The operating companies opted for the KRS822 pumps, ideally suited for applications involving muddy or sand-drenched water.

These four pole motors turn at 1450rpm, which is much slower than similar pumps with two pole motors, meaning abrasion is kept to a minimum.

A spiral formation has been used to create less of a slope for the water to climb, a solution made for the access tunnel at Modane with an altitude of 1085m, a length of 4000m and a height differential of 360m.

The pumping solution would have to meet the challenges of a 12% incline of difficult and abrasive liquid.

The Lyon Turin Ferrovaire is the first high speed rail link in a series of EU-backed projects leading to a high speed network connecting major cities in Europe.

Tsurumi is one of the world's most experienced pump manufacturers. The Tokyo facilities produce more submercible pumps globally per year than any other pump manufacturer.

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