Re: RTJ or RF flange?

San, Look at <a href="http://www.woodcousa.com/online.htm">http://www.woodcousa.com/online.htm</a>

Registration is required to access the tools, but I highly recommend doing so (I have no connection with the company, I just discovered the site while searching for a web-based answer to your question). There is a wealth of relevant information there.

I hate to think about the cost of duplicating all my paper-based piping reference material. Usually, when I need access it from home, it's at the office. And vice-versa.

Then again, that's one reason why I founded the site. Access to what you need from anywhere.

Paul

PS See
<a href="http://www.manufacturing.net/magazine/planteng/3500/articles/97/02">http://www.manufacturing.net/magazine/planteng/3500/articles/97/02</a> 3514.htm, also a good primer.

• Original Message ----- From: sankaranarayanan dalawai <dmsbhawani@yahoo.com> To: <PipingDesign@yahoogroups.com> Sent: Friday, June 08, 2001 2:23 PM Subject: [PipingDesign] RTJ or RF flange?

> Hai all,
>
> 1)I need to know when to select a Raised face flange
> and when to use a Ring Joint flange . In the company I
> worked earlier we used to specify RTJ ends for flanges
> above 600 rating ( i,e 900 and above )and Raised Face
> for 600 rating and below. Is there any book /technical
> literature that give the information on choosing the
> flange ends with solid technical reasons.
>
> 2)Can any body tell me from their experience for
> Hydrogen and Nace service 900 /1500 rating is it good
> to use RF flange or an RTJ flange ( As I want to use
> the RTJ FLANGE whereas some are saying they had leaks
> on RTJ and want to use RF flange )
>
> Any guideline / input /experience will be highly
> appreciated.
> Thanks in advance.
> Narayanan.
Received on Fri Jun 08 19:45:00 2001