The project in brief

Frogner Hovedgaard is listed on the Norwegian Directorate of Cultural Heritage list of cultural heritage sites. The buildings were erected as a wood construction in 1825 – 1830 in Skien in the southern parts of Norway. As a part of the Norwegian cultural heritage, it was decided that Frogner Hovedgaard should be fire protected.

Due to laws and regulation regarding the renovation of such buildings, a system using small dimension pipes was requested and furthermore due to many non-heated areas, innovative systems utilizing watermist deluge systems where required. VID-Fire-Kill Model OH Nozzles for heated areas and VID Fire-Kill Model N-pipes was therefore a perfect match for the project requirements.

Why was a VID Fire-Kill solution chosen?

Small dimension pipes ensured fewer damages to the building,
Model OH nozzles with color finish ensure nice retrofit installation very little visible,
Model C-EL control valves and N-pipes ensure simple, sound and reliable protection in cold areas without risk of having the system water freezing,
Low water flow in case of fire would help damage the building less.

Some specifics

The non-heated areas were zone protected with open Model N-pipe Type 2V + BM-1 nozzles, and in case of fire smoke / flame detection would trigger the zone Model C-EL control valve. The entire attic are where zoned into 9 smaller zones.

Automatic nozzles Model OH-range where used in all the heated areas.

Products used for this case

Automatic Nozzles for Most EN OH1 Risks and NFPA LH Risks

Model OH-VSO, Model OH-SW, Model OH-SW2

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Electrical & Manual Operated Control / Deluge Valves Made Purely in Stainless Steel 316L

Model C-EL