Connection for parallel tap port

[reckless_plumber]

Hi all,

Happy Sunday…first poster here so pls be gentle

I have a Nuie Arvan ARV828 basin mixer tap which I am trying to connect H/C feeds to. The inlets are 1/2in BSP parallel threads.
The issue I have is I am wanting to properly seal the inlets with more than just PTFE/Fernox. However I cannot find a male coupler long enough to be able to use with an O ring to get a good seal. All standard male couplers are too short so don’t seal the O ring properly.

Any ideas as to what connection would work best here?

Many thanks

 

[reckless_plumber]

Image of the tap ports is attached.

 

[Ben-gee]

I use loctite 55, it’s great and never have a problem.

You could use thread sealant eg loctite 577; but it’s quite expensive and loctite 55 is more useful for general use.

 

[Basher]

Are you saying it's designed for an o-ring at the bottom of each port - are they supplied?
Had that not been the case, I would have been sealing it on the outside surface with a fibre washer!

If so looks like you need at least 8 threads worth of depth.
There are extra length tank fittings, or this adapter:

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though I don't know how the flat profile at the end will align with your o-ring !

 

[ShaunCorbs]

Use a tapered male iron and just be mindful not to over tighten

 

[reckless_plumber]

Thanks for the info all. Nothing else was included in the fittings pack. So it looks like options are:

• fibre washer.
• tapered male.
• loctite 55.

From experience, does one of these normally trump the others??

 

[reckless_plumber]

Currently trying to fit against this male coupler…

 

[king of pipes]

Loctite 55 will do it as Shaun stated don't over tighten into the connection. Kop

 

[ShaunCorbs]

You need ptfe or loctit 55

 

[reckless_plumber]

Thanks all. 10 wraps of ptfe left to a few drips. So I’m going to spend a little more on Loctite 55 in the hope I nip it first time.

 

[ShaunCorbs]

15-16 needed for ptfe

 

[reckless_plumber]

Thanks for the advice all. Loctite 55 is on and holding firm for now