Pumping the dock dry for caisson refurbishment

In order to limit the amount of time for which the lock was out of service, and to cater for variations in the tides around the dock, the time available for each of the emptying and filling operations was to be completed in less than three hours.

Faced with the requirement to pump 3m litres of water from Liverpool’s Langton Dock in just three hours, with potentially serious and costly consequences if things went wrong, Exsel Pumps decided to rely on variable speed drive systems from Ralspeed to control the pumps it would use for the challenging ...

This is premium content

Already a member? SIGN IN now

V2-MJ

Sign up for FREE to continue this article…

It only takes a minute to sign up for a free account, and you’ll get to enjoy:

  • Weekly newsletters providing valuable news and information on the commercial marine sector
  • Access to the Maritime Journal Industry Database
  • Monthly Maritime Journal Magazine (Restricted digital edition)
  • Website access (3 standard news articles per month)

Get access and more free content sign up today

Does your organisation require more access? Upgrade to a subscription and enjoy unlimited news and additional features.