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Plate patch

Plate patch

Plate patch

(OP)
Hi everyone.

Would anybody be able to lead me in the right direction in finding a reference where it says that I can take off a cap and replace it with a plate for a pressure vessel. The pressure vessel is rated at 70 psig.

Thanks in advance,

eng741

RE: Plate patch

What construction code? If it is Section VIII Div 1, look at UG-32.

RE: Plate patch

What is the "plate" made of, how is it made, and how are you going to attach it safely?

What does your PV insurance company say about the change?

RE: Plate patch

(OP)
I read UG-32, and correct me if I'm wrong, is used for creating a head with respect to ASME section viii, division 1.

I'm trying to cut an existing nozzle/cap and put a lapped patch over it. What I found was API 653 section 9.3.2

Is there any more references I can go by and would API 653 section 9.3.2 be a sufficient reference?

Thanks in advance,

eng741

RE: Plate patch

(OP)
Also the shell thickness is 5/8". Would this still be allowed to put a lapped patch on?

It states if the shell is greater than 1/2" then I will not be able to, is this correct? If so where can I find a method to patching a 5/8" thick shell?

Thanks in advance,

eng741

RE: Plate patch

Look at UG-34.

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