SimonJohns
Gas Engineer
- Messages
- 3,690
You are right, - ptfe on valve threads! Def a no no! I would add that paste should always be used & to be a bit controversial, - I would avoid those ordinary ballofix valves anyhow, as they reduce flow, leak at seal where slot is, (especially on hot pipes) & often break. The better quality type that is full flow & is made same as a lever valve is best.
I would of said that ptfe used correctly (on olive and not threads) is 100x better than paste for servicing.
But disagree on the valve but the quality of the valve. The tap that it was feeding appeared to have very thin flexis, so in this job it would of made very little difference
On bath taps I would say you have to have a full bore