Use of washers in pipe flange bolting

[dbehm]

Are there any standards that either promote or restrict the use of washers under the nuts for ANSI flange to flange connections? I know there are Belleville washers specifically for flange bolting, but cannot find washers directly addressed in any of the specs.

 

[dbehm]

Found my answer elsewhere in the forum, sorry for the newbie mistake

 

[svanels]

Could we learn from it?, just post a link to the thread.

 

[dbehm]

see thread 378-67168

 

[svanels]

see thread378-67168, no spaces

 

[PAN]

The related links :-
thread404-81706
thread292-10824