Re: minimum pipe spool length

Is this covered by the Code (never mind if its above or below ground)? Sure appreciate if u can cite the specific paragraph. I thought it is just one of those good engineering practice that works.

• In PipingDesign@yahoogroups.com, elie altawil <eliealtawil@...> wrote:
  >
  > it depends on the Code, B31.??, and if the pipe below or abobe
  ground.
  >
  > regards,
  >
  > delacruzjuan1977 <delacruzjuan1977@...> wrote:
  > 3T is very much less than 1D - specially if were talking
  about large
  > bore piping. I do agree that the key thing to do is to avoid
  > overlapping of the HAZ.
  >
  > Im not sure about the AWS - if it specifically mentioned one NPS
  as
  > a requirement. Care to mention the specific AWS?
  >
  > --- In PipingDesign@yahoogroups.com, shivakumar angadi
  > <shivku_2000@> wrote:
  > >
  > > Yes, as you rightly said One NPS is the normal
  > > pracitice. If your pipe size is large, you can go for
  > > smaller spool piece. However, under extreme
  > > conditions, the lenght of spool piece shall be more
  > > than 3T in order to avoid the overlap of HAZs of
  > > adjacent weld joints.
  > >
  > > Hope this give you an additional idea for desiding
  > > minimum length of spool piece.
  > >
  > > Thanks
  > >
  > > Shivakumar Angadi
  > > Design Engineer
  > > Joint Operations - Kuwait Gulf Oil Company & Chevron
  > > Texaco
  > > --- dd jdh <saduemk@> wrote:
  > >
  > > > hi all,
  > > >
  > > > May anyone tell what will be the minimum possible
  > > > pipe spool length
  > > > for a butt welded end connection.
  > > >
  > > > As per AWS the minimum pipe spool length required
  > > > in a line is one
  > > > NPS.
  > > >
  > > > where site condition restricts this minimum
  > > > requirement, is it
  > > > possible to adopt
  > > >
  > > > lesser length spools.
  > > >
  > > > thanks and regards,
  > > >
  > > > Sadanandan.M.K
  > > >
  > > > PE middle east
  > > >
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