Hi,

Gutted my downstairs toilet and just noticed the old lead stopcock has an odd thread. It's a male thread around 23mm O/D so thinking it's a 5/8" BSP. Anyone know of an adaptor to come off it with 15mm pipe ??

The stopcock seems part of the lead pipe so can't really just replace it without isolating water to the house ?

Any help appreciated

Simon

Photo please.

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Here you go scruff, the male thread at the top measure's slightly under 23mm on my vernier

Have you saved the nut and lining that goes on the other side.

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unfortunately not, thought i'd rip it out while i had a skip for the kitchen and gone back to it after getting the room plastered and finishing the kitchen 2 months later. I'd assumed (idiot) it would be a standard fitting

have been trying to think if we'd have anything on the shelves to help, thing is i'm on holiday for the next 2 weeks & i aint going in.
Industrial Ancillaries might have something to help

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A Kurerlite k701 20 x 15mm would probably have done, but no good without the nut.

I'll have a look in the garage later.

Have you tried a 3/4 tap connector on it.

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Haven't tried a 3/4" tap connector, worth a go ?

went to plumbase yesterday with my problem and the chap gave me a brass adaptor (Flowflex) he was confidant would fit, too small, looks like maybe a 22mm? and was closed earlier !!!

im 99.9% sure that, that is a 3/4" male thread.

could you put a tape measure across the top of the thread with another picture?

3/4" BSP is 26mm od

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Tried a better pick, used a vernier as well for better idea of size

and my tape too

wish my lottery came in with those 0.1% odds

If it would help i could go dig my thread gauge out and get the tpi

It's a special thread/size.

Have you got a pitch gauge.

The size is as near as damn it 1/2" but the thread will be different.

If you can post the TPI we should be getting somewhere.

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