Blowdown of a safety valve 2

[aida2011]

Hi

Probably this question is quite trivial to some but for a person who has no access to ASME Code, I need to know this.

Each safety valve has a blowdown, ie. the pressure where the seat is re-seated. What does ASME Sec I specify the percentage of blowdown from the set pressure?

Thanks

Aida Hanani

 

[KevinNZ]

http://www.thereckinematics.com/images/page_product/consolidated/pdf/Safety Valve Code&Std.pdf

 

[GenB]

Kevin. Very good reference. Post. Thanks.

 

[aida2011]

Kevin,

Thanks very much.

Aida