how do i make a sealble interface

This topic has 13 replies, 4 voices, and was last updated 6 March 2018 at 14:12 by Martin Newbold.

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4 March 2018 at 12:35 #9111
Martin Newbold
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@martinnewbold
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4 March 2018 at 12:35 #344351
Martin Newbold
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@martinnewbold
Hi I am having a dilema

I have this drain:

The shortend section screws on to the base but is of a different countries orgin and is made of stainless . I need to make a brass interface to this and wonder if i cut it shorter to the tube i would have better luck with a seal?

Edited By Martin Newbold on 04/03/2018 12:35:36
4 March 2018 at 13:00 #344356
Martin Newbold
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@martinnewbold
does anyone have any ideas how to get a good seal?
4 March 2018 at 13:02 #344357
Bazyle
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@bazyle
Not clear what you are connecting to what and which bit needs sealing. Plumbers boss-white would be the traditional sealant.
4 March 2018 at 13:20 #344362
JasonB
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@jasonb
Just bin it and get one with 1.5" BSP thread to fit UK and european traps only cost a few quid. I've thrown a few sink and shower wastes away that are non standard as it's not worth the hastle.
4 March 2018 at 13:25 #344364
Martin Newbold
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@martinnewbold
i want to end up about 22mm
4 March 2018 at 13:36 #344365
Martin Newbold
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@martinnewbold
I have heard that brazing with heat can remove stainless properties so i am looking for alternatives. The outside is 32mm

Edited By Martin Newbold on 04/03/2018 13:59:48
4 March 2018 at 13:39 #344366
JasonB
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@jasonb
In that case still do what I said and use a central eating pump connector which will screw onto a 1.5" waste and have a 22mm compression fitting on the other end.
4 March 2018 at 14:00 #344368
Martin Newbold
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@martinnewbold
its 32mm Jason
4 March 2018 at 14:09 #344369
Brian Sweeting 2
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@briansweeting2
Get standard sink waste plumbing fittings.

32mm is 1¼"

You can get adaptors to go from 32mm plastic to 22mm.

Use Plumbers Mait to seal waste fittings to sink outlet.
4 March 2018 at 14:21 #344371
Martin Newbold
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@martinnewbold
the other end i think it screws on to is 46mm 12 tpi

Edited By Martin Newbold on 04/03/2018 14:22:54
4 March 2018 at 14:23 #344372
Martin Newbold
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@martinnewbold
its on a lathe will boss white stand up to cutting fluid? I would rather bin this part and connect onto threaded bigger thread which is around 46mm x 12tpi i think that makes it 1 7/8"

Edited By Martin Newbold on 04/03/2018 14:46:40
4 March 2018 at 15:48 #344392
JasonB
Moderator
@jasonb
Are you sure it is not about 47 x 11tpi as that would make it 1.5" BSP. As the thread has been rolled onto the stainless it is likely to be less than the text book major diameter.

Edited By JasonB on 04/03/2018 15:52:24
6 March 2018 at 14:12 #344687
Martin Newbold
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@martinnewbold
Not really no Jason its 1.5" BSP as it seems to small if that 1.5" .

If i put a vernier gauge across bottom of bigger part male its 45.75. This is the lower profile in the dips of the thread and will just push into other part without going into threads
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