Can't figure out what a part on the York compressor I am using to build my OBA system is.
If anyone familiar with them could take a look at the picture below and tell me what it is, I'd appreciate it. I'm guessing a pressure relief valve, but it's just a guess.
I thought about unscrewing it, but I put a socket on it and it wouldn't budge. it's difficult to tell, but it looks like it is molded into the casing (except for maybe the nut looking piece at the end. I was afraid I may damage it if I tried too hard to unthread it.
Looks like I'm not the only one confused about this part. On the page below, it states then when the "bolt" was removed it let pressure out of his tank, so that reinforces my original guess of a pressure relief valve.
It is just treaded in and may be unscrewed but there is no need to remove it. It is a pressure releaf valve but is set very high your air tank will blow up first. you will want to leave it in place or plug the hole. In either case install a blow off valve else where in the system set for the lowest max presure in your system usally the air tank.