Construction of a 3,200 m long road tunnel
ARGE Tunnel Achrain/Österreich
Beton- u. Monierbau Gesellschaft m.b.H.
Alpine Mayreder Bau GmbH
Jäger Bau GmbH
Drainage during the complete tunnel heading work.
Use of type KTZ32.2 submersible pumps. These are operated in 24-hour snore mode.
Thanks to their special properties including their internal rotating mechanical seal and upstream shaft protection sleeve with seal, the Tsurumi pumps can be operated in 24-hour snore mode.
The advantages of this design are:
- Extended service lives
- Lower costs for spare parts
- Lower labour costs