I'm in the middle of finishing the plumbing for my heating system, minus the living room wall panel... So I'm pressure testing currently... This is agonizing sorta... Down around 12 pounds pressure, I'm good to go... I'm pumping air in there around 43psi currently, and I get just the slightest bit of leakage around one of the auto bleeders... Now the problem is, this is a threaded fitting... The tread in this case is 1/8" NPT... That's the smallest pipe thread as far as I know... Usually you can tread these things together by hand, and be done... I've put a wrench on this unit now, and I still get the hiss... If I try to wrench it any more, I'll destroy the fitting... I just pulled it apart, and reapplied the thread sealing compound, so hopefully that will work...
I'm good down at the low pressure though... The emergency blow off valves are set at 30psi... Its not possible for this fitting to ever see 43psi, so what am I worried about?... Hell I don't seem to get any loss down at 30psi...
This is the reason I hate pipe threads... Pipe threads are 19th century technology basically... There are way better methods out there these days... The problem is for the most part you simply can not get basic plumbing fittings in one of those newer systems...
Modern plumbing is living in the past...
Posted by Backstage at September 13, 2005 01:16 PM | TrackBack