Swan Reach-Stockwell pipeline
Our Water Engineering Technologies workshops recently completed a significant upgrade on the Swan Reach-Stockwell pipeline at pumping stations 2 and 3. This was a large and complex project, both technically and logistically.
The discharge and reflux valves and actuators at the pumping stations, plus associated pipework were past their useful life and due for replacement, with most originally installed in the late 1960s.
The South Para Workshop mechanical team took the lead role from design through to the physical installation of the new valve trains. The new pipework needed to be specially tapered and constructed from stainless steel. In a display of real skill and innovation, the fabrication team both rolled then fabricated the tapered sections entirely in house delivering significant savings to the project.
To eliminate any impacts to customer supply or introduce water quality issues to the network, the team ensured the pipeline interruption did not exceed 48 hours at a time. Our people worked around the clock in 12 hour shifts to ensure that pumping was brought back online as soon as possible. This was achieved by supplementing the South Para crews with our tradespeople from Berri and Port Lincoln.
Due to excellent planning and the hard work of everyone involved, the upgrade works at both pump stations were completed without incident and full pumping capabilities were brought back online within 18 hours - well short of the planned 48 hours. Both pump stations now have new valve sets which will ensure a very high level of pumping availability for many years to come which is a great outcome for our customers.
Pump unit 2A showing the old valve train removed, with the new valve train ready for installation; and the newly-installed valve train on pump 2B ready for tensioning of bolts and installation of new valve actuator