Does the hydrotest include piping systems that will be connected to the final product?

[Stephen Max]

Hello,

I am designing a pressure vessel according to Division 1 rules that will eventually be fed steam via a piping system. Does the hydrotest require that the piping be included, or can that be tested independently? Nothing is said about piping in UG-99.

Thanks.

 

[david339933]

Piping can be done apart from vessel....use piping code for hydrotest of piping spools. I can recall only one or two times we did entire vessel plus piping for hydro, majority (hundreds) of vessels hydrotested on their own.
See U-1(e) for what is included in scope of vessel (Sec. VIII Div.1)

 

[david339933]

Forgot to mention, the requirements for testing piping along with vessel would be found in piping code.

 

[mk3223]

Since the vessel and piping are designed using different ASME Codes, the testings should be followed accordingly for the Code compliance.

 

[Stephen Max]

Thank you for your replies, I appreciate the help.