Determining regulator flow under failure condition

[Engineer_M]

I need to perform flow calculations for the regulator failure scenario. Typically we have the Cv valve and the calculations are fairly simple. But in this case, I only have the regulator orifice size, does anyone know how to do flow calculations with just the orifice size?

 

[LittleInch]

You're into critical flow calculations / restriction orifice calcs. There are many available on line.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[1503-44]

You can find that here

https://www.swagelok.com/downloads/WebCatalogs/EN/MS-02-369-E.PDF