Dear colleagues,
A client has an existing alarm valve room in an open air courtyard of
his complex building, fully enclosed by parts of the building.
It may freeze in this coutry, sometimes upto -20 deg C (-4 deg F).
We are looking for a way to connect the valve room to the underground
fire water mains outside the perimeter of the building by way of a
new DN300 (12 inch) header.
Passing through the building or its souterrain is very difficult or
might even be impossible.
(All rooms, including the souterrain are in full use and have access
limitations.)
Drilling a tunnel underneath the souterrain has been rejected because
of possible damage to the foundation and all the existing pipes and
cables that might lay under the building.
Client has come up with a proposal to route this 12 inch header over
the roof, meaning 14 m up along the outside wall, 17 m horizontal
over the roof and 14 m down again into the courtyard.
That above ground loop would be made in hot-dipped galvanized steel,
insulated and heat-traced.
What is your opinion about that solution?
And why?
Has this been done often?
Looking forward to your appreciated views.
Met vriendelijke groet/Kind regards,
Frans Stoop
Riskonet B.V.
Singel 540, 1017AZ, Amsterdam
T +31 6542 37 642
www.riskonet.com
[email protected]
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