Leaking pressure valve

[kkelly77]

I was fitting TRV's to the CH system in my house the other day. I also replaced the drain valve as the original was seized closed. The pressure relief valve on the boiler was also broken, gauge was reading zero.

When I fitted everything and refilled the system, I saw the pressure valve was leaking from the connection even though I had plenty of PTFE on it. I took it off and removed all the PTFE and took a wire brush to the male connector on the boiler. Wrapped it in PTFE again and refitted. It's still leaking

Am I doing something wrong?

K

 

[Bartdude]

Hemp and boss white would sort that out!

And the discharge pipe needs to be fitted too

 

[Kmort78]

Use lock tight and jet blue, ...your gauge is reading over 4 bar in the secound pic??this is far to high!!

 

[kkelly77]

Hemp and boss white would sort that out!

And the discharge pipe needs to be fitted too

Should I wrap it in hemp and boss white instead of the PTFE? What does a discharge pipe look like as the old valve did not have one on it

Use lock tight and jet blue, ...your gauge is reading over 4 bar in the secound pic??this is far to high!!

The second pic is of the old pressure valve. Gauge was reading zero during the current freeze we had. One of the days it went up to 4 bar for about 30 secs and then returned to zero. Currently reading ~1 bar

 

[Billy Bob Bob]

or you could be wrapping ptfe the wrong way,as said ptfe and jet blue