Re: Actual bolt area and Gasket Contact width

[satyamech9]

Dear All,

Greetings of the Day.

In integral Flanges if Minimum bolt area is maximum of Am ( wm1/sb , wn2/sa)then how to calculate Ab i.e., Actual bolt area and also please let me know how to calculate No.of bolts and its diameter.Is their any formulas for it.?

Please do needful


Thanks & Regards.

Satya

 

[Nafierfani]

Hi Satya

Assume Number of bolts and size of that, then :

Ab = n x A(root)

Ab should be less than Am , So if "n x Aroot" was not enough. increase the number of bolts or change the bolts size.

* it is recommended " All Flange Bolt Holes Straddle the Centerlines" so the number of holes can be 8 , 12 , 16 , 20 ,...
* Get the Aroot from selected bolts table

 

[satyamech9]

Dear Nafierfani,

Thanks for your reply,if we have to calculate "Ab" then we have to know the Values of no.of bolts and size of bolts.Do you please clarify these values and let me know if any calculations for it.


Thanks & Regards,

Satya

 

[SnTMan]

satyamech9, see this:

http://www.eng-tips.com/viewthread.cfm?qid=395823

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[satyamech9]

Thanks for your reply Mike.