Re: Flange Calculation

From: <shivakumar>
Date: Fri May 26 2006 - 06:24:00 EDT

Dear Friend,

You have to increase the flange width as well as gasket seating area so the number of bolts. The stress due to bolting-up condition shall always be higher than stresses due to operating/design conditions for custom designed flanges.

Thanks

• Mohammad Danish <mdanish@tebodin.co.om> wrote:

> Dear friends,
>
> DP=314000 KPa
>
> DT=130C
>
> Line Class 2500
>
> Flange Material: Sa-182 gr F51 (UNS S31803)
>
> Bolt Material SA-193 Gr B7
>
> I performed the Flange Leakage Calculation Using
> CAESER-II.
>
> The results say the flange joint is
> leaking/unsafe.These calculation
> are done by ASME Sec VIII div 1 Appendix-2 & S
>
> Now If want to make my system Safe what I had to do
>
> 1. Change the Flange Material to high yield strength
> material.
> 2. Change the flange thickness
> 3. Change the bolt material to high yield strength
> 4. Or to change the gasket.
>
> Please guide me of the economical alternatives. Is
> there any website
> which gives the ID and OD of raised face of flange.
>
> The website posted earlier www.red-bag.com
> <http://www.red-bag.com/>
> does not give this detail. Please provide me of any
> links
>
> Thanks & regards,
>
> Danish
>
>
>
>
> ‘This message, including any attachments, may
> contain confidential and privileged information for
> the sole use of the intended recipient(s). Review,
> use, distribution or disclosure by others is
> prohibited. If you receive this message in error,
> please notify the sender by reply e-mail and delete
> the message from all computers. Please note that
> e-mails are susceptible to change. The sender will
> not accept liability for the improper or incomplete
> transmission of the information contained in this
> message.’
>
> [Non-text portions of this message have been
> removed]
>
>
>
> ------------------------ Yahoo! Groups Sponsor
> --------------------~-->
> Protect your PC from spy ware with award winning
> anti spy technology. It's free.
>

<a href="http://us.click.yahoo.com/97bhrC/LGxNAA/yQLSAA/3GYolB/TM">http://us.click.yahoo.com/97bhrC/LGxNAA/yQLSAA/3GYolB/TM</a>
>

--------------------------------------------------------------------~->

>
>
> =========================================
> PipingOffice - Excel Spreadsheets for Piping
> Calculations
> <a href="http://www.pipingoffice.us/">http://www.pipingoffice.us/</a>
> =========================================
> Main site: <a href="http://www.pipingdesign.com">http://www.pipingdesign.com</a>
>
> Yahoo! Groups Links
>
>
> <a href="/group/PipingDesign/post?postID=OqgoAe7F47MS61CQObBnrXftyAXjUFmoNAn_Z7TZCDVGXYiutwQWpI9nF_-D9htKY_iWZ9ROWdmyaN0vXtIK6F2kTOK2p_bwW386Tx_J3lM">PipingDesign-unsubscribe@yahoogroups.com</a>
>
>
>
>
>

---

Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around <a href="http://mail.yahoo.com">http://mail.yahoo.com</a> Received on Fri May 26 06:24:00 2006