Din insert question on Steel 100 thermo valve

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Posted by bxavier on July 28, 2013 at 09:42:49:

Hello: just wondering about the size of orings on each side of the din insert. thermo valve says 3442 psi/230 bar. after reading some, it looks like the big oring is a 213 and the smaller is an 012. Is this correct? I'm having a little trouble blowing orings with a conventional 1st stage with 3400 psi, but I think I was using a cheap size 14 oring. also the insert is nicked up some. Please advise, as air is important under water. PS: the viz at Catalina Th. and Fri. was near 100 feet. thanks, Brian Xavier

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