Dear Frustrated-in Fargo,
The collapsing building theory is the one I heard, along with not
being able to get at it due to heat from a burning structure. Note
that 8.115.1.1.1 states that outside control valves are "suggested"
in the order of "preference". There is no shall in any of those options.
At 10:43 AM 6/18/2008, you wrote:
Forum:
Anyone know the reason WHY PIVs are to be located at least 40 ft. from
the building (on a fire service line piped into the building)?
I have heard some theories - like to keep the valve free from a
collapsing wall. But I am curious if any of you have any definitive
explanations for that number. Why not 30 ft.? Why not 50 ft.
We are dealing with an AHJ who is requiring we pipe an underground an
additional 200+ ft. around a corner just so our PIV can be at least 40
ft. from the building. Otherwise, if we pipe straight out the building,
the public right-of-way is such that we'd be only 31 ft. from the
building with the PIV. This is not good enough for this gentleman
since, as he says, it is POSSIBLE for you to get it 40 ft. away (with
the 200+ ft. of underground). If there was no other way, he would have
allowed the 31 ft. separation.
Frustrated-in-Fargo, PE
Fire Protection Engineer
Ulteig Engineers, Inc.
3350 38th Avenue S.
Fargo, ND 58104-7079
Direct: 701. 280.8591
Fax: 701.280.8739
Cell: 701.371.5759
[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
www.ulteig.com <http://www.ulteig.com/>
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Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
www.fpdc.com
860.535.2080
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