Looking at the standard Swagelok ball valves, the SS-41 to -44 series, they come standard with PTFE/D1710, Grade 1, Class B. Everything else in there is 316SS. I don't have a clue what the info after the '/' means.
Dan In a message dated 7/9/02 8:28:40 PM, [EMAIL PROTECTED] writes: << My guess would be that the usual valve hardware is Teflon FEP, and what you want for long-term peroxide compatibility is Teflon PTFE. >> _______________________________________________ ERPS-list mailing list [EMAIL PROTECTED] http://lists.erps.org/mailman/listinfo/erps-list
