[dd251] Re: Piping For Sprinklers and Water Mist Systems
- From: Scott.Williams@xxxxxxxxxxx
- To: dd251@xxxxxxxxxxxxx
- Date: Fri, 24 Jan 2003 09:57:22 +0000
Dear Mr Ferries,
I too am not sure why anyone would want to use an unapproved pipe syste=
m,
but maybe I can explain, form a pipe manufacturers point why alternativ=
e
materials are being considered.
If fire sprinklers are to progress into the general new build of domest=
ic
housing, as built by the likes of Barratt, Persimmon, Wimpey, Bovis,
Westbury, etc, then a flexible pipe system will need to be approved for=
domestic use. (I agree that it should be in conjunction with fast actin=
g
sprinkler heads). The reason for the need of flexible pipes is due to
modern construction methods, the use of fabricated joists, through whic=
h it
is very difficult to pass a length of copper any more than 1m in length=
,
but through which a polybutylene or PEX pipe can easily be pulled in lo=
ng
lengths.
In most of this housing traditional copper systems have almost entirely=
been replaced by flexible plastic plumbing systems. The contractors are=
now
used to working with these materials and can easily obtain them from
builders merchants.
I will not however, enter into the debate on the merits of one type of
system over another, i.e. water mist and sprinklers.
Scott Williams
Wavin Plastics Ltd
Peter Ferries <PFerries@xxxxxxxxxxxxxxxx>@freelists.org on 23/01/2003
17:16:03
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Subject: [dd251] Piping For Sprinklers and Water Mist Systems
I'm not sure why anyone would want to consider using an unapproved pipi=
ng
material in any sprinkler system. Is the cost saving so great? The mate=
rial
content in the piping alone for a typical residential system is quite
small,
and all of the approved materials are quite easy to install. In view of=
this, why take the risk?
As a matter of interest, I'm not aware that any piping material has bee=
n
tested and/or approved for use on water mist systems. No doubt our wate=
r
mist system members will let me know if I'm wrong.
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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