Again thanks for the help. I tried finding things online but you have to be a member to get the information I need to look at.
I appreciate your help, thanks.
Thanks for all the information. Also there are two straight thru ball valves that are isolation valves for gauges, I assume they would fall into the same catagory as the diverter being that they are stainless and I assume some sort of plastic or tephlon seat.
The isolation valves are .25...
Thank you for the answer, that helps me alot.
This system was installed over ten years ago, have the rules changed since then or was it installed incorrectly at that time?
The ball is stainless also. Not sure of seat material. The valve is used to divert between two safetys and each has a .25 purge valve to bleed off pressure for maintenance.