Does anybody know what this brass 90 degree fitting is?
It's 3/4 inch and it feeds an in-ground sprinkler system. Apparently, last year the company that winterized the system missed a spot and it blew out a section of the PVC piping and the ball valve just below this valve. I found out the other day when I went to turn the system on. I replaced the PVC parts today (ignore how sloppy it looks - at least my work doesn't leak) and now that the system will hold pressure, this valve is leaking from the right side, where that cross-bar looking piece runs across it. It looks like there's a plunger of some kind in there and there's a slow drip coming from it. I'm leaning towards this being a pressure relief valve or a check valve or backflow preventer of some kind, but I'm not finding anything that matches this image on line. I'd like to either replace it or rebuild it if it's serviceable. There's a local plumbing supply place that still has some old timers I can hit up this week if I can't figure it out but I thought maybe someone on the forum might recognize it.
Thanks