Hi all,

Anyone recognise these items from a 1/8" copper pipe union? I need to
order some more but don;t know what they're called. Never seen 'em
before! The nut fits a 7/16 spanner and I particularly would like to
know the designation of the conical olive shown.

https://yandex.com/collections/card/...907098273c663/

Thanks.

Martin James Smith wrote:

Anyone recognise these items from a 1/8" copper pipe union? I need to
order some more but don;t know what they're called. Never seen 'em
before! The nut fits a 7/16 spanner and I particularly would like to
know the designation of the conical olive shown.

https://yandex.com/collections/card/...907098273c663/

Looks like some sort of "flare" fitting

On 28/02/2020 09:46, Andy Burns wrote:
Martin James Smith wrote:

Anyone recognise these items from a 1/8" copper pipe union? I need to
order some more but don;t know what they're called. Never seen 'em
before! The nut fits a 7/16 spanner and I particularly would like to
know the designation of the conical olive shown.

https://yandex.com/collections/card/...907098273c663/

Looks like some sort of "flare" fitting

No, I think it is a different shaped "olive". In the dim and distant
past when I was in research, some of the nominal quarter inch stainless
steel needle valves that we used for plumbing gas supply systems used
olives this sort of shape. We normally only used stainless ones on
stainless pipe. I can't recall for the moment the manufacturer (but
there were only one or two).

On 28/02/2020 10:28, newshound wrote:
On 28/02/2020 09:46, Andy Burns wrote:
Martin James Smith wrote:

Anyone recognise these items from a 1/8" copper pipe union? I need to
order some more but don;t know what they're called. Never seen 'em
before! The nut fits a 7/16 spanner and I particularly would like to
know the designation of the conical olive shown.

https://yandex.com/collections/card/...907098273c663/

Looks like some sort of "flare" fitting

No, I think it is a different shaped "olive". In the dim and distant
past when I was in research, some of the nominal quarter inch stainless
steel needle valves that we used for plumbing gas supply systems used
olives this sort of shape. We normally only used stainless ones on
stainless pipe. I can't recall for the moment the manufacturer (but
there were only one or two).

Swagelok was probably one of them.

SteveW

Andy Burns wrote:

Martin James Smith wrote:

Anyone recognise these items from a 1/8" copper pipe union? I need to
order some more but don;t know what they're called. Never seen 'em
before! The nut fits a 7/16 spanner and I particularly would like to
know the designation of the conical olive shown.

https://yandex.com/collections/card/...907098273c663/

Looks like some sort of "flare" fitting

Is it perhaps an adapting olive for a fitting that also takes somewhat
larger microbore tube?

--

Roger Hayter

On Fri, 28 Feb 2020 11:47:18 +0000, (Roger Hayter)
wrote:

Andy Burns wrote:

Martin James Smith wrote:

Anyone recognise these items from a 1/8" copper pipe union? I need to
order some more but don;t know what they're called. Never seen 'em
before! The nut fits a 7/16 spanner and I particularly would like to
know the designation of the conical olive shown.

https://yandex.com/collections/card/...907098273c663/

Looks like some sort of "flare" fitting

Is it perhaps an adapting olive for a fitting that also takes somewhat
larger microbore tube?

Nope. The bit in the picture shows the cleanly-cut end of the pipe
where it terminates into the appliance - an oil-fired boiler - and as
you can see, there is no flaring of the pipe. The olive itself
performs the sealing action by the look of things. The raggedy end of
the pipe went towards the fuel tank; it was brutally snipped off for
the sake of expedience.

On 28/02/2020 11:47, Roger Hayter wrote:
Andy Burns wrote:

Martin James Smith wrote:

Anyone recognise these items from a 1/8" copper pipe union? I need to
order some more but don;t know what they're called. Never seen 'em
before! The nut fits a 7/16 spanner and I particularly would like to
know the designation of the conical olive shown.

https://yandex.com/collections/card/...907098273c663/

Looks like some sort of "flare" fitting

Is it perhaps an adapting olive for a fitting that also takes somewhat
larger microbore tube?

No. It's just a two part olive that grips the pipe in two locations, but
both in the same direction, so less likely to pull through.

Swagelok and Parker-Hannifin (sp?) used to do them in stainless steel,
for pressures of 6000 psi and higher. They were designed to be a precise
fit, so tightness could be checked with a go/no-go gauge between the nut
and fitting.

SteveW

On 28/02/2020 09:40, Martin James Smith wrote:
Hi all,

Anyone recognise these items from a 1/8" copper pipe union? I need to
order some more but don;t know what they're called. Never seen 'em
before! The nut fits a 7/16 spanner and I particularly would like to
know the designation of the conical olive shown.

https://yandex.com/collections/card/...907098273c663/

Thanks.

This web site sells 10mm flare fittings:

https://www.bes.co.uk/search?q=flare...&view_size=all

They might be able to help.

As a temporary arrangement I did manage to join two 1/4" (Imperial
anyway) bits of copper pipe together using a 10mm solder fitting.

--
MAC