Sealing An expansion Vessel Leak

[petit_pablo]

Some people on here, believe other people on here are to==sers for using ptfe, can't be convinced yet not to use it.

PTFE used in the correct way is fine. Using it to supplement olives on a compression joint is seen as cowboy by many.

 

[TicklyT]

From the first reply in the thread:-

Are you sure the male thread is tapered bsp?

Until we know the answer to that one, we don't know how to seal it, because we don't know where the seal should be.

Tapered threads are sealed on the thread.

Parallel threads just provide the mechanical clamping force to compress a soft washer / pipe olive / 'O' ring seal elsewhere in the joint.

If there are mismatched components fitted together, say, a parallel tap connector screwed onto a tapered fitting, it may not be possible to achieve a proper seal without changing some of the parts. A compression fitting nut may screw onto a tap tail, but a tap tail has a flat face, so it won't compress an olive. Likewise, a tap connector will screw onto a compression fitting, but the tapered olive seat may cut straight through the soft sealing washer.

 

[nickso]

kerrrrrching. 4 callouts last saturday including one telephone consultation

you answer the phone on GA? weirdo!

 

[gavinda]

for 8 hours double time? damn straight. enjoying my one day off now

 

[iansmith7]

Hi
Thanks for all the replies.
I have been very busy the last few days and I havnt had a chance to respond to the posts.
I am going to have another look it on wedensday to confirm if it is a Parrallel or taper thread.But I would have hoped that if it needed a washer there would have been one in the kit I bought.
Now do I wind the Ptfe tape with the thread or against it? and where did I leave those spurs??????????
Cheers
Ian

 

[gavinda]

with the thread, and if you are using multi wrap as suggested, us approx 20 wraps overlaping as you go. a little blob of silicone grease will help the fittings go together as well.