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Torque specifications for flange to flange bolted joints
- Tree
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12 years 11 months ago - 12 years 11 months ago #8038 by Tree
Torque specifications for flange to flange bolted joints was created by Tree
Is there an ANSI, ASME or similar standard with torque specifications for bolted flange to flange joints?
Thanks,
Steve
Thanks,
Steve
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- Jop
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12 years 11 months ago - 12 years 11 months ago #6278 by Jop
Do it once and Do it Right
Replied by Jop on topic Re: Torque specifications for flange to flange bolted joints
Do it once and Do it Right
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12 years 11 months ago - 12 years 11 months ago #6279 by Tree
Replied by Tree on topic Thank you!!!
Thank you!!!
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12 years 11 months ago - 12 years 11 months ago #6280 by Tree
Replied by Tree on topic Re: Torque specifications for flange to flange bolted joints
How about bolting procedures or piping standards for bolts/hardware. I.E. Washer, lock washer, no washers, locking nuts etc. A project I'm working on, a PM is trying to follow a standard I can not find anywhere.
Thank you,
Steve
Thank you,
Steve
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12 years 11 months ago - 12 years 11 months ago #6282 by Jop
Do it once and Do it Right
Replied by Jop on topic Re: Torque specifications for flange to flange bolted joints
Tree,
You asked:
How about bolting procedures or piping standards for bolts/hardware.
I.E.:
- No washers - This is pretty much the standard in the industry when it comes to "Stud Bolts". That is the way you buy them and that is the way you install them. (See this - www.google.com/search?q=%22Stud+ ... 08&bih=581 )
- Washer - If a washer is used it is very rare.
- Lock washer - This is not done
- Locking nuts - This might be done in some certain specific high vibration cases.
Also, go here to learn about Bolt tightening sequence (note]www.piping-designer.com/Bolt_Tig ... _Procedure[/url]
You asked:
How about bolting procedures or piping standards for bolts/hardware.
I.E.:
- No washers - This is pretty much the standard in the industry when it comes to "Stud Bolts". That is the way you buy them and that is the way you install them. (See this - www.google.com/search?q=%22Stud+ ... 08&bih=581 )
- Washer - If a washer is used it is very rare.
- Lock washer - This is not done
- Locking nuts - This might be done in some certain specific high vibration cases.
Also, go here to learn about Bolt tightening sequence (note]www.piping-designer.com/Bolt_Tig ... _Procedure[/url]
Do it once and Do it Right
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12 years 11 months ago - 12 years 11 months ago #6283 by 11echo
Replied by 11echo on topic Re: Torque specifications for flange to flange bolted joints
I'm going to have to disagree you you JOP on the lock washers NOT being used! In general I believe you are correct, but I've run across a major client that wanted "Belleville washers" used on there steam lines. Their steam system was so large that yearly maintenance was not always cared out ...the stud bolts would loosen up and the steam would start escaping and "cut" the face of the flange ...causing more problems. Not sure who came up with the idea but the client now wants these washers used on all steam applications. Here's a link on them www.mubea-discsprings.com/disc-s ... pring.html
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