Designing Blind Flange in PV Elite 26

[MizanAMC]

Hi PV Elite experts,

I would like to ask regarding blind calculation considered in this software. i found that the req thickness for the custom blind differ when the "evaluate uniform pattern hole" was clicked. it become thicker when we click this option.

Why does this happen? custom blind should be calculated based on UG-34. And the patterned hole will considered UG-36/UG-39. But, by simply clicking this button (not input any hole dimension yet) the thickness already changed.

Or is there multiple ways to calculate custom blind thickness? Hope someone can help.

 

[Geoff13]

This forum is about storage tanks, like those covered by API 650 or AWWA D100.

You seem to have pressure vessel question which would be better asked in either https://www.eng-tips.com/forums/boiler-and-pressure-vessel-engineering.794/ or https://www.eng-tips.com/forums/asme-mechanical-code-issues.292/

 

[David3399]

I don't use PV Elite, but looking at your snip, you are designing per ligaments (UG-53).

 

[MizanAMC]

This forum is about storage tanks, like those covered by API 650 or AWWA D100.

You seem to have pressure vessel question which would be better asked in either https://www.eng-tips.com/forums/boiler-and-pressure-vessel-engineering.794/ or https://www.eng-tips.com/forums/asme-mechanical-code-issues.292/

Thank you geoff13, gonna repost this thread there.

 

[MizanAMC]

I don't use PV Elite, but looking at your snip, you are designing per ligaments (UG-53).

it was my first time exploring UG-53. but as i read, its more to opening on the shell instead of blind right?
and there is this "ligament efficiency". How can i relate it with the formula of req thickness of blind/shell?

 

[MizanAMC]

I post this thread on other forum, you can click below for the answer.

Designing Blind Flange in PV Elite 26 - Boiler and Pressure Vessel engineering

Hi PV Elite experts, I would like to ask regarding blind calculation considered in this software. i found that the req thickness for the custom blind differ when the "evaluate uniform pattern hole" was clicked. it become thicker when we click this option. Why does this happen? custom blind...

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