I presume you sell goods to Norway in your capacity of UK Trader (belonging to the UK, established in the UK, registered for UK VAT, file regularly VAT returns, etc.).
Under these conditions you normally should be able to claim the input VAT back on the purchase fo the goods you sold to a Norwegian client. Such supply qualifies as an export in the EU and an import in Norway. However, you must be able to demonstrate the fact that the goods were exported!
When exporting goods it is most important which incoterm you use, e.g. who is liable for the transport, the insurance of the goods and tax upon importing the goods into Norway.
Hope this helps,