SpudFiles

hi i found some class 18 pipe its really thick but in New Zealand we use Class A-F as a pressure rating and class 4.5-18 is the old way of describing its pressure rating but i cant find out how much PSI it can go up to.

can anyone help me

what are you using it for

im using it for the bends after my butterfly valve as im doing an under-over design

class 18 means it's pressure rated to 18 bar.
18 bar = ~280 psi