Actually u r the joke... ive spent thirty years in the field u twit!!! Ive hired n fired more guys like u than i care to remember. U r right u can always learn something. But the fact that i asked a simple question n got dragged through a pointless discussion rather than a simple answer like 200 psi nominal working pressure. This would have gone much better. But u carry on n on about things i dont need to know nor did i care to discuss or need help with. Try supplying someone with the exact information they r asking for before carrying on with ur own questions or rant. All that will do is piss people off like me who dont need ur help. Just a simple damn pipe rating. U two guys, valve man especially do not communicate professionally. Its like a highschool classroom with u to i can see clearly. But its ok guys.. i called another actual professional like myself and got my answer a d some in 10 minutes rather than this pointless exchange between u two idiots.. n if i have to state my qualification to get u to shut the hell up and just answer the damn question. Then so be it. It seemed to work though i got help elsewhere first. Sad... on ur part.. n im sorry u get defensive by me mentioning those said qualifications. I might look into some therapy for that superiority complex u have there. N im sorry i obviously have a far superior education than u n im guessing a much greater work experience(in the field, dooshbag). I would have been better off emailing that tom silva guy on that tv show this old house than speak to u waste of spaces... anyhoo good luck wasting someone elses time n trying to make them feel bad about there accomplishments cuz u have none. Sincerley yours, the engineer(retired)