Westinghouse to replace pumps at Olkiluoto 1&2

14 August 2014

Westinghouse Electric Sweden is to supply 12 main circulation pumps for a modernisation project at units 1&2 of Finland's Olkiluoto nuclear power plant. Power plant operator TVO said it awarded a turnkey contract for the work in July, which is valued at in excess of €40 million.

Under the contract, WSE is responsible for the design and engineering of the main circulation pumps in collaboration with theirmanufacturer (KSB Group). It will also be responsible for delivery and installation of special tools, as well as provision of support services during the erection period.

TVO says that the replacement of the main circulation pumps, which pump water through the reactor core, is one of the most significant modernisation projects in TVO's history.

The pumps are due to be replaced during planned outages in 2016-2018. Initially one new pump will be erected at OL1, and operational tests will be carried out. The six pumps of OL2 will then be replaced in 2017, followed finally by the replacement of the five old pumps at OL1.

The new pumps will have a greater flow rate than the current pumps, which have been in operation for 35 years.

Photo: Olkiluoto 1&2

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