The EuroFlo Industrial Pump system keeps Tunnel boring machine (TBM) cool by a steady water supply. pressure gauge 2.5 นิ้ว is an east-west rail route that passes beneath the city of London utilizing new twin-bore 21km tunnels.
EuroFlo pumps and the tanks are situated on the surface; the water is pumped from there down to the shaft and all alongside the tunnel up to the TBM. Once the water has handed via the TBM system the remaining water comes back by way of a filtration system to the tanks on the surface, out of the tunnel.
The water circuit supplies 20 l/s to every TBM and eight l/s is used in the TBM for different works and 12 l/s returns to the tanks. The inlet strain wanted ranges between 4 and 10 bar. On one web site three TBM’s are operating and the pump system delivers 60 l/s, with the gear consisting of one single tank (3200m3) and one industrial pump used per tunnel. On one other website, the set up support’s the excavation with only one TBM with 20 litres/second and the water storage tank capacity of 1100m3
EuroFlo use 37 kW vertical multistage Industrial pumps for the cooling system whereas the TBM excavates by way of a serious underground part of the Cross rail venture.