For my next stupid question...

[cosmarchy]

I have a question regarding watertight seals.

I am installing a thermostatic shower and don't know whether I am likely to have problems with a compression fitting which is not wound in tight upto it's shoulder.
View media item 39890View media item 39891If you look at the first image, you fill see the elbow connector needs to be in the position shown ie facing 6 o'clock position. The trouble with this is that it is not wound fully home on to it's shoulder as you can see in the second image. If it were then it would be facing 11 o'clock which is no good for the pipework it is connecting to. There is plenty if PTFE tape around the thread and I did need a spanner to do it up although if I could get a tight enough grip I could turn it by hand although it would be quite stiff.

My question is really, is this likely to be water tight? I mean, what do you do when you tighten up a fitting only for it to point in the wrong direction???
How tight it tight?

Thanks

 

[adlplumbing]

yes it should be water tight

 

[misterdubya]

Wind it back to the right position and try it - remake the joint 1st.

It not designed to be wound in to the point the brass pieces meet.

 

[carlsquires]

I would recommend using loctite 55 in that situation, if not make sure you pressure test the valve before the hole is filled in, if you find a leak remove the valve and redo the joint.

 

[misterdubya]

I would recommend using loctite 55 in that situation, if not make sure you pressure test the valve before the hole is filled in, if you find a leak remove the valve and redo the joint.

Thats good stuff as you can back right off with that - never leaks.

 

[matt1e]

got to agree.......loctite 55 is the buisness

 

[landyandy]

Loctite 55 in this situation.

Andy.

 

[cantaloup63]

On a related theme - when would ptfe be a preferred option over loctite?

 

[Dan Robinson]

eeerrr hardly ever...

I will have rack my brain to find a use for PTFE tape...

 

[cantaloup63]

Thanks. Not sure if you boys use tape for gas work, but I'd imagine loctite wouldn't be approprate iif you did

 

[carlsquires]

I'm sure loctite is suitable for gas, it says on the packet it comes under BS EN 751-2 which according to my viper book is OK for use on gas (had to dig it out to check )

 

[Agile]

I did not know that Viper published in Italian!

But as the regulations for gas are bound to be different it seems rather irrelevant!

 

[willsgas]

I don't think they do.

Although I currently live in italy, all the above information is relevant to the UK. (the clue is in the BS part)

 

[carlsquires]

oops