Re: [PipingDesign] Threaded Connections for Instruments

From: <>
Date: Wed Jan 30 2008 - 23:24:00 EST

The Idea of not using threaded connection in any specification / class is to avoid taking any chance or because the class is for some critical service or for high pressure. But using threaded connection after block valve reduces the severity of that pipe and hence a threaded connection can be used.

Technip Abudhabi

              Syed Amjad Ahmed
              om>                                                        To
              Sent by:        
              PipingDesign@yaho                                          cc
                                        Re: [PipingDesign] Threaded
              30/01/08 02:40 PM         Connections for Instruments

              Please respond to

Thank you very much, Bruce.
My concern is that: wouldnt that threaded instrument connection make the line threaded one?
How should we explain the case?
Hope you understand my query.

> Amjad - Normally a reference to threaded connections
> for instrumentation
> in a piping spec is in reference to pressure sensing
> instruments (
> including flow instruments) - which ape provided
> with male npt
> connections. The piping system will include a "root
> valve" which will have
> a connection per piping spec ( socket welded for
> example) on one side & a
> female threaded connection on the other side where
> direct mounting of a
> threaded instrument or the installation of a
> threaded tubing adaptor which
> will connect to a remote mounted instrument is
> possible. Take a look at
> your instrumentation department's standard
> installation details - normally
> a reference is made to differentiate between the
> piping & instrumentation
> disciplines -
> Is this your case?
> Bruce R. Raymond
> Senior Design Supervisor
> Fluor

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Save a tree...please don't print this e-mail unless you really need to. Received on Wed Jan 30 23:24:00 2008

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