Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations pierreick on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Over pressure

Status
Not open for further replies.

KevinNZ

Mechanical
Jun 12, 2003
840
Piping codes allow some short periods of operation above design pressure/temperature, but the components like flanges need separate consideration.

When I look in ANSI B16.5 (1.2.2) it refers to ASME boiler code for over pressure limitations.

Where in the ASME code are the rules about operation at a pressure exceeding design ratings? The best I can find is 16% over pressure when safety valves are discharging.

Thanks
Kevin

 
Replies continue below

Recommended for you

pipign : B31.1 see paragraph 102.2.4
15% overpressure less than 10% of any 24 hr period
20% overpressure less than 1% of any 24 hr period

and B16.34- valves- only allowed 10% overpressure when relief valves are lifting.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor