I've recently had an exchange with a customer of one of my sight glass kits that made me realize that many people don't know that couplings and other welded in fittings can be tweaked. When you tell a welder to put a coupling into your vessel, I doubt you or the welder ever specifically think about the importance of having it be level. OK, correction, it doesn't really matter much for a ball valve bulkhead port or a thermometer port but it is important for sight glasses so the tube goes vertical.
What if the welder botched it or you didn't think of even mentioning it? Tweak it. I realize it's most common to have a coupling welded directly but I'm showing a TEE here for illustrative purposes.
What if the welder botched it or you didn't think of even mentioning it? Tweak it. I realize it's most common to have a coupling welded directly but I'm showing a TEE here for illustrative purposes.