Re: Pipe Fittings

• In PipingDesign@yahoogroups.com, "naveen_md" <naveen_md@...> wrote:
  >
  > --- In PipingDesign@yahoogroups.com, mustafa rayees
  > <mustafa_nlg@> wrote:
  > >
  > >
  > > Dear Friends,
  > >
  > > Hi To everybody , This is mustafa ,Presently working
  > > for chilled water piping design. I am having
  > > difference of opinion to use concentric reducers.
  > >
  > > My argument is that we can use concentric reducers in
  > > horizontal & vertical pipes While my colleague is
  > > saying not to use concentric reducers in horizontal
  > > pipes.
  > >
  > > Please let me know any piping design recommend for
  > > above
  > >
  > > I will be thankfull if you give me correct information
  > >
  > >
  > > Thanks indeed.
  > >
  > > Mustafa
  > >
  > > Designing Eng.
  > >
  > >
  > > My dear friend, what your colleague says is right. the
  concentric
  > reducers should not be used in horizontal piping unless
  inevitable.
  > the reason is 1) the elevation of pipe (BOP) running with respect
  to
  > reference of ground will be changed, 2) the sludge trap cannot be
  > achieved (with concentric reducers), 3) the air trap cannot be
  > achieved (with concentric reducers). so eccentric reducers should
  be
  > used in horizontal piping.
  >
  > coming to concentric reducers, in vertically mounted pipes the
  above
  > mentioned points for vertical piping does not make any difference
  > other than the (unit length). so concentric reducers are used in
  > vertical piping.
  >
  > hope my knowledge of reducers may be useful for you.
  > naveen
  >
  

  My dear friend,

   I dont know what is sludge trap and air trap. Is it a drain. Please clarify me.