pressure class

[cavram]

wath is the meaning of number from presure class simbol (150, 300,...)?
is there a link between the number from presure class and work pressure?

 

[StevenHPerry]

Yes, there is a link.

See ASME B16.34 (valves) and/or B16.5 (flanges).

- Steve Perry

 

[pepeuy]

There is a link. The working pressure also varies with material and temperature of the fluid that will run thru.

You should check the ASME's StevenHPerry pointed out.

If you would like a guide for some materials follow the link.

http://www.comeval.es/pdf/tablas/ansi.pdf

 

[jte]

Try doing a search on the topic within this forum. It's been discussed plenty of times before.