I have connected a 200 bar helium tank and a manometer to a pressure regulator. The end of the manometer's tube connected to the regulator is leaking. It's attached with anaerobic thread sealant, so I can't remove it.
It leaks between rotating and non rotating parts
I tried using bath sealant, but it doesn't sustain 200 bar. I also attempted sealing it with melted soldering wire, but it doesn't stick, no matter how much flux I use. I need some kind of sealant, that is tough enough, but aerobic
The tube is guaranteed to sustain up to 300 bar, but apparently it doesn't.
How do I fix the leakage?