Garden tap thread size

[Dave Baker]

I want to buy a hose pipe to attach to the outdoor tap at my new house.
Thread size measures up at about 30mm o/d and a tad less than 2mm pitch
which doesn't seem to be any normal BSP size. Is this a standard metric
thread for garden taps?
--
Dave Baker

[Bob Minchin]

All plumbing threads are still imperial afaik
7/8" BSP = standard thread to be found on 22mm compression fittings if
that helps knock up an adaptor.

Bob

[Tim Watts]

Usually 3/4" BSP but I have seen a 1" BSP - could that be yours?
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[Dave Liquorice]

On Thu, 23 May 2013 11:57:38 +0100, Dave Baker wrote:

> I want to buy a hose pipe to attach to the outdoor tap at my new house.
> Thread size measures up at about 30mm o/d and a tad less than 2mm pitch
> which doesn't seem to be any normal BSP size.

In the sheds what you can buy will fit... I thought they where 3/4" BSP
but thinking about it that is the same a washing machine conector which
is smaller, so 1" BSP.

Wikipedia has 1" BSP as 11 threads/inch 1.309 inches dia (2.309 and
33.249 mm). Have you measured yours or just eyeballed it?

--
Cheers
Dave.

[The Medway Handyman]

AFAIK all garden taps are 3/4" BSP, as are all HPC inlet threads.

--
Dave - The Medway Handyman www.medwayhandyman.co.uk

[Bob Minchin]

Knowing the OP reputation as a precision engineer, I'd assumed his
measurements to be reasonably accurate.
About 30mm o/d and less than 2mm pitch stacks up with 7/8" BSP x 14tpi.
Bob

[The Medway Handyman]

Don't think you will ever find one :-)

IN 30+ years of selling pressure washers I've never come across one that
didn't have a 3/4" bsp male thread for the inlet connection. The
Hozelock tap connectors fit them & the tap.

[polygonum]

That may be true, indeed there is no reason to doubt your experience,
but there are 7/8" threaded objects:

http://www.amazon.co.uk/dp/B0051ODZZC

--
Rod

[Gazz]

"The Medway Handyman" <davi...@blueyonder.co.uk> wrote in message
news:lUvnt.10282$Wa....@fx30.am4...

in my travels around europe in a motorhome, i came across loads of different
tap connections,

in france it seem'd popular to have 2 taps side by side fed from a large
bore pipe, one would be the standard 3/4 fitting for 1/2 inch hosepipe, the
other would be the next size up, used with 3/4 inch hosepipe,

difference in flow was fantastic, could fill the 150 litre tank up in about
half the time with a 3/4 inch length of hose,

I collected a load of adaptors over time, so i could connect to almost any
tap i found, the one that got me was in scotland, service station in
aviemore, sized slightly larger than 3/4, but smaller than any of the larger
adaptors i had, used the back up of the rubber cuf and jubilee clip to
connect to it in the end.

[Nightjar]

BSP *is* a standard metric thread in Britain. 7/8" BSP is 30.201mm OD x
1.814 pitch, but it is a very odd size to have on a tap. Most are 3/4" BSP.

Colin Bignell

[charles]

In article <apednUsNutpKOwPM...@giganews.com>,

I have garden taps installed between 1977 and last summer. 3 different
threads are involved.

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[Dave Baker]

"Bob Minchin" <bob.minc...@YOURHATntlworld.com> wrote in message
news:knlugh$k1u$1...@dont-email.me...

You're right. Seems to be a bastard size which no one stocks anything for.
Might be easier to change the whole damn tap than try and connect a hose to
it. Arse.
--
Dave Baker

[sarah....@gmail.com]

On Friday, 24 May 2013 09:43:18 UTC+1, Dave Baker wrote:
> "Bob Minchin" <bob.minc...@YOURHATntlworld.com> wrote in message news:knlugh$k1u$1...@dont-email.me... > Dave Liquorice wrote: >> On Thu, 23 May 2013 11:57:38 +0100, Dave Baker wrote: >> >>> I want to buy a hose pipe to attach to the outdoor tap at my new house. >>> Thread size measures up at about 30mm o/d and a tad less than 2mm pitch >>> which doesn't seem to be any normal BSP size. >> >> In the sheds what you can buy will fit... I thought they where 3/4" BSP >> but thinking about it that is the same a washing machine conector which >> is smaller, so 1" BSP. >> >> Wikipedia has 1" BSP as 11 threads/inch 1.309 inches dia (2.309 and >> 33.249 mm). Have you measured yours or just eyeballed it? >> > Knowing the OP reputation as a precision engineer, I'd assumed his > measurements to be reasonably accurate. > About 30mm o/d and less than 2mm pitch stacks up with 7/8" BSP x 14tpi. > Bob You're right. Seems to be a bastard size which no one stocks anything for. Might be easier to change the whole damn tap than try and connect a hose to it. Arse. -- Dave Baker

I have the same problem, but it's at an allotment site where I don't own the tap, I just want to attach my hose to it. Did you ever find a solution?

Hozelock recommended I buy their 5/8" attachment - I think in metric so it took me a few beats to work this one out - hey, isn't 5/8 smaller than the 3/4 Hozelock one that I told them was TOO SMALL?

[Roger Mills]

Yes, if indeed what you had was 3/4" BSP. But bear in mind that the
*actual* size of 3/4 BSP is 1.041" (about 26.5mm). If the *actual* size
of the fitting you had was about 3/4" in diameter, could it have been
1/2" BSP - whose size is 0.825" (just under 21mm)?
--
Cheers,
Roger
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[bond]

replying to The Medway Handyman, bond wrote:
I finally solved *my* outdoor tap conundrum. 5/8 BSP.

--
for full context, visit http://www.homeownershub.com/uk-diy/garden-tap-thread-size-897564-.htm

[Fredxxx]

On 01/08/2016 18:44, bond wrote:
> replying to The Medway Handyman, bond wrote:
> I finally solved *my* outdoor tap conundrum. 5/8 BSP.

It is customary to quote sufficient of the thread to supply the context
of your your reply.

All we see here is your reply, since the other posts to this thread are
3 years old and long gone.

[harry]

https://www.google.co.uk/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=7/8+bsp+tap+connector&tbm=shop&spd=15948998257492906272

[Roger Mills]

He told you that the thread was 5/8 BSP - what more do you want? <g>

[homerman]

replying to Dave Baker, homerman wrote:
I made a 7/8 bsp female thread to 3/4 bsp male thread adaptor to suit hoselock
connectors also made 7/8 bsp female thread to hoselock quick release connector
both work very well I may sell if anyone is interested

--
for full context, visit https://www.homeownershub.com/uk-diy/garden-tap-thread-size-897564-.htm

[jazmann]

replying to homerman, jazmann wrote:
Can you upload a photo? Or describe how you made the adapter. If you put it up
on ebay I might buy one from you if its difficult

[knightblazer85]

I've been trying for days to find a hose connector for our outside tap with no success after our old one broke last winter. i've bought 3 different connectors, 2 were just a few milimeters too big and 1 was too small. have tap sizes changed in recent years or something? the tap in our back yard has been there since before we moved in 27 years ago. its reached the point where i plan to get a plumber out to see about fitting a new standardised tap. because we need to get the driveway pressure washed

[John Rumm]

Have you measured the diameter of the threads on the tap?

--
Cheers,

John.

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[Brian]

Most seem to be the same size- not just in the UK but even in Europe. I use
the same adaptors when on campsites in France etc. as at home.

That said, I’ve notice some cheap adaptors are under size- either poor
tolerances or perhaps they are some other thread which nearly fits- you can
use them with brute force. Look for ones with a definite cylindrical
shape, the problem ones tend to have bowed walls and a thin top edge.

Oddly, the BSP (British Standard Plumbing) sizes are still used even now in
Europe.

[Brian Gaff]

2017?

Brian

--

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"knightblazer85" <knightb...@gmail.com> wrote in message
news:f2ddedc5-8cfa-41c3...@googlegroups.com...

[Colin Bignell]

That is because the International Standards Organisation adopted the
British Standard Pipe thread as the ISO standard for pressure tight (ISO
7-1:1994) and non-pressure tight (ISO 228-1:2000) pipe threads.

--
Colin Bignell

[Theo]

Otherwise known as G plus the size in mm, eg G25 is 1" BSP.

Theo

[Colin Bignell]

I thought that DIN specification, from the German Gewinde, but I don't
know the ISO standard in detail, except as it is used in the UK.


--
Colin Bignell

[Roger Mills]

On 29/08/2023 02:54, knightblazer85 wrote:
>

They're all likely to be one of several BSP sizes. Note: The BSP size
refers to the nominal bore, so the outside diameter is somewhat bigger.
See the table at https://www.stevensonplumbing.co.uk/bspt.html

The default outlet size for outside taps is 3/4" BSP. But some are 1/2"
BSP or even 5/8" BSP.

--
Cheers,
Roger