Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". I had assumed that a standard 1/2" tap fitting would work fine but have now discovered that the US use a different thread pattern to the UK Looking at the instructions more closely it appears that the connection is actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from? Ideally I would require a 1/2" male NPT to 1/2" female BSP but anything to BSP would be OK as I can plumb around it..

Any help appreciated.

thanks

Lee.

On Sat, 19 May 2012 12:09:49 -0700 (PDT), Lee Nowell
wrote:

Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". I had assumed that a standard 1/2" tap fitting would work fine but have now discovered that the US use a different thread pattern to the UK Looking at the instructions more closely it appears that the connection is actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from? Ideally I would require a 1/2" male NPT to 1/2" female BSP but anything to BSP would be OK as I can plumb around it..

Any help appreciated.

thanks

Lee.

Force it!!!

--
Graham.
%Profound_observation%

On May 19, 8:09*pm, Lee Nowell wrote:
Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". *I had assumed that a standard 1/2" tap fitting would work fine but have now discovered that the US use a different thread pattern to the UK *Looking at the instructions more closely it appears that the connection is actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from? *Ideally I would require a 1/2" male NPT to 1/2" female BSP but anything to BSP would be OK as I can plumb around it..

Any help appreciated.

thanks

Lee.

Solder a bit of copper pipe into the threaded bit. It might have to
be bored out.

On Sat, 19 May 2012 20:09:49 +0100, Lee Nowell
wrote:

Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". I had
assumed that a standard 1/2" tap fitting would work fine but have now
discovered that the US use a different thread pattern to the UK
Looking at the instructions more closely it appears that the connection
is actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from?

jfgi?

http://www.kiowa.co.uk/products/bsp_...daptor/FBNMM88

http://www.pipefittingsonline.co.uk/...prod_2775.html

Jim K

On May 19, 8:09*pm, Lee Nowell wrote:
Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". *I had assumed that a standard 1/2" tap fitting would work fine but have now discovered that the US use a different thread pattern to the UK *Looking at the instructions more closely it appears that the connection is actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from? *Ideally I would require a 1/2" male NPT to 1/2" female BSP but anything to BSP would be OK as I can plumb around it..

Any help appreciated.

thanks

Lee.

I've got Grohe taps and they are European fittings which are a
slightly different size to UK, rather than a different type. Is the US
fitting really a different thread type, rather than just a different
thread size?

dan.

On Sunday, May 20, 2012 8:36:20 AM UTC+1, Jim K wrote:
On Sat, 19 May 2012 20:09:49 +0100, Lee Nowell
wrote:

Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". I had
assumed that a standard 1/2" tap fitting would work fine but have now
discovered that the US use a different thread pattern to the UK
Looking at the instructions more closely it appears that the connection
is actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from?

jfgi?

http://www.kiowa.co.uk/products/bsp_...daptor/FBNMM88

http://www.pipefittingsonline.co.uk/...prod_2775.html

Jim K

Thanks Jim... the pipefittingsonline one looks like it will do the trick but very pricey

I too found a hydraulic adaptor but it seems that they are made of steel with have been "Gold Posivated" (not sure what that means!) so unsure of whether I can use this.

Anyone any ideas what this means?

thanks

Lee.

On Monday, May 21, 2012 9:40:00 AM UTC+1, dent wrote:
On May 19, 8:09*pm, Lee Nowell wrote:
Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". *I had assumed that a standard 1/2" tap fitting would work fine but have now discovered that the US use a different thread pattern to the UK *Looking at the instructions more closely it appears that the connection is actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from? *Ideally I would require a 1/2" male NPT to 1/2" female BSP but anything to BSP would be OK as I can plumb around it..

Any help appreciated.

thanks

Lee.

I've got Grohe taps and they are European fittings which are a
slightly different size to UK, rather than a different type. Is the US
fitting really a different thread type, rather than just a different
thread size?

dan.

Thanks Dan. I just spoke with Grohe technical support in the UK. It seems that the UK and US fittings are completely different. Apparently the UK fittings are made so that the water is drinkable from them but the US fittings are not! The valve bodies are made of a different material (wonder if the US one is "Gold Posivated"!). The thread is definately different as the Grohe instructions has it as 1/2" NPT-FIP (well i think it was -FIP it may have been another TLA).

thanks

Lee.

Lee Nowell wrote
Jim K wrote
Lee Nowell wrote

I bought a Grohe tap whilst in the US and the fittings are 1/2". I had
assumed that a standard 1/2" tap fitting would work fine but have now
discovered that the US use a different thread pattern to the UK
Looking at the instructions more closely it appears that the connection
is actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from?

jfgi?

http://www.kiowa.co.uk/products/bsp_...daptor/FBNMM88

http://www.pipefittingsonline.co.uk/...prod_2775.html

Thanks Jim... the pipefittingsonline one looks like it will do the trick
but very pricey

I too found a hydraulic adaptor but it seems that they are made of steel
with have
been "Gold Posivated" (not sure what that means!) so unsure of whether I
can use this.

Anyone any ideas what this means?

That some ****** described it.

On May 19, 9:30*pm, Graham. wrote:
On Sat, 19 May 2012 12:09:49 -0700 (PDT), Lee Nowell

wrote:
Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". *I had assumed that a standard 1/2" tap fitting would work fine but have now discovered that the US use a different thread pattern to the UK *Looking at the instructions more closely it appears that the connection is actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from? *Ideally I would require a 1/2" male NPT to 1/2" female BSP but anything to BSP would be OK as I can plumb around it..

Any help appreciated.

thanks

Lee.

Force it!!!

That's plumbing the depths.

MBQ

On May 21, 9:58*am, Lee Nowell wrote:
On Sunday, May 20, 2012 8:36:20 AM UTC+1, Jim K wrote:
On Sat, 19 May 2012 20:09:49 +0100, Lee Nowell
wrote:

Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". *I had
assumed that a standard 1/2" tap fitting would work fine but have now
discovered that the US use a different thread pattern to the UK
Looking at the instructions more closely it appears that the connection
is actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from?

jfgi?

http://www.kiowa.co.uk/products/bsp_...draulic_adapto...

http://www.pipefittingsonline.co.uk/...manifolds-bras...

Jim K

Thanks Jim... the pipefittingsonline one looks like it will do the trick but very pricey

I too found a hydraulic adaptor but it seems that they are made of steel with have been "Gold Posivated" (not sure what that means!) so unsure of whether I can use this.

Anyone any ideas what this means?

thanks

Lee.

The word is "passivated".

MBQ

On May 21, 10:49*am, "Rod Speed" wrote:
Lee Nowell wrote









Jim K wrote
Lee Nowell wrote
I bought a Grohe tap whilst in the US and the fittings are 1/2". *I had
assumed that a standard 1/2" tap fitting would work fine but have now
discovered that the US use a different thread pattern to the UK
Looking at the instructions more closely it appears that the connection
is actually 1/2" NPT rather than BSP.
Anyone any idea where I can get a converter from?
jfgi?
http://www.kiowa.co.uk/products/bsp_...draulic_adapto....
http://www.pipefittingsonline.co.uk/...manifolds-bras....
Thanks Jim... the pipefittingsonline one looks like it will do the trick
but very pricey
I too found a hydraulic adaptor but it seems that they are made of steel
with have
been "Gold Posivated" (not sure what that means!) so unsure of whether I
can use this.
Anyone any ideas what this means?

That some ****** described it.

So you don't know either.

MBQ

Op zaterdag 19 mei 2012 21:09:49 UTC+2 schreef Lee Nowell het volgende:
Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2".

You went on holiday to Disneyworld, accidentally walked into a plumbing supply shop and thought "I'll have that one!"? Happens to me all the time.

Anyway, you're lucky it wasn't Australia. The bolts all turn the wrong way.

On Monday, May 21, 2012 12:29:29 PM UTC+1, Man at B&Q wrote:
On May 21, 9:58*am, Lee Nowell wrote:
On Sunday, May 20, 2012 8:36:20 AM UTC+1, Jim K wrote:
On Sat, 19 May 2012 20:09:49 +0100, Lee Nowell
wrote:

Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". *I had
assumed that a standard 1/2" tap fitting would work fine but have now
discovered that the US use a different thread pattern to the UK
Looking at the instructions more closely it appears that the connection
is actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from?

jfgi?

http://www.kiowa.co.uk/products/bsp_...draulic_adapto....

http://www.pipefittingsonline.co.uk/...manifolds-bras....

Jim K

Thanks Jim... the pipefittingsonline one looks like it will do the trick but very pricey

I too found a hydraulic adaptor but it seems that they are made of steel with have been "Gold Posivated" (not sure what that means!) so unsure of whether I can use this.

Anyone any ideas what this means?

thanks

Lee.

The word is "passivated".

MBQ

Ah... thanks for the clarification. Anyone know whether this will be OK for a tap fitting?

On Mon, 21 May 2012 01:58:11 -0700 (PDT), Lee Nowell
wrote:

I too found a hydraulic adaptor but it seems that
they are made of steel with have been "Gold Posivated"
(not sure what that means!) so unsure of whether I can use this.

Anyone any ideas what this means?

It's passivated. Means it's been flash coated with a more inert metal.
If you're lucky it won't rust to buggery and block up or fall apart
within two years. It's quite common to find cadmium coated nuts and
bolts for teh same reason. Another one is 'sheradized'.

If it were me, I'd find the NPT fitting to fit the tap, braze on the
fitting for the UK pipe and make my own adapter, thereby.

On 21/05/2012 13:19, Hognoxious wrote:
Op zaterdag 19 mei 2012 21:09:49 UTC+2 schreef Lee Nowell het volgende:
Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2".

You went on holiday to Disneyworld, accidentally walked into a plumbing supply shop and thought "I'll have that one!"? Happens to me all the time.

Anyway, you're lucky it wasn't Australia. The bolts all turn the wrong way.

Most of my spanners are universal, they can be used on both left and
right handed threads.

--
Pete
Lose (rhymes with fuse) is a verb, the opposite of find. Loose (rhymes
with juice) is an adjective, the opposite of tight.

"harry" wrote in message
...
On May 19, 8:09 pm, Lee Nowell wrote:
Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". I had
assumed that a standard 1/2" tap fitting would work fine but have now
discovered that the US use a different thread pattern to the UK Looking
at the instructions more closely it appears that the connection is
actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from? Ideally I would require
a 1/2" male NPT to 1/2" female BSP but anything to BSP would be OK as I
can plumb around it..

Any help appreciated.

thanks

Lee.

Solder a bit of copper pipe into the threaded bit. It might have to
be bored out.


At 1/2", BSPT is almost the Same as 1/2" NPT. TPI is the same. The Taper is
the Same. But one has a 55 Deg Thread form and the Other has 60 deg.

They quite happily fit together.

Baz.

On Monday, May 21, 2012 4:14:06 PM UTC+1, Baz wrote:
"harry" wrote in message
...
On May 19, 8:09 pm, Lee Nowell wrote:
Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". I had
assumed that a standard 1/2" tap fitting would work fine but have now
discovered that the US use a different thread pattern to the UK Looking
at the instructions more closely it appears that the connection is
actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from? Ideally I would require
a 1/2" male NPT to 1/2" female BSP but anything to BSP would be OK as I
can plumb around it..

Any help appreciated.

thanks

Lee.

Solder a bit of copper pipe into the threaded bit. It might have to
be bored out.


At 1/2", BSPT is almost the Same as 1/2" NPT. TPI is the same. The Taper is
the Same. But one has a 55 Deg Thread form and the Other has 60 deg.

They quite happily fit together.

Looking at the tables, I'd agree that the sizes are very close, and I suspect with normal tolerances they would fit together with no problems. I'd suspect the most likely scenario for having problems would be fitting an NPT male into a BSP female thread, which isn't the problem here.
Unforthunately when I had the same kind of problem the threads were 1/4", where the TPI are different...

On 2012-05-21, Pete Shew wrote:

On 21/05/2012 13:19, Hognoxious wrote:
Op zaterdag 19 mei 2012 21:09:49 UTC+2 schreef Lee Nowell het volgende:
Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2".

You went on holiday to Disneyworld, accidentally walked into a plumbing supply shop and thought "I'll have that one!"? Happens to me all the time.

Anyway, you're lucky it wasn't Australia. The bolts all turn the wrong way.

Most of my spanners are universal, they can be used on both left and
right handed threads.

You have to remember to flip them over, though, to oppose the Coriolis
effect.

Ty

On Monday, May 21, 2012 6:18:52 PM UTC+1, wrote:
On Monday, May 21, 2012 4:14:06 PM UTC+1, Baz wrote:
"harry" wrote in message
....
On May 19, 8:09 pm, Lee Nowell wrote:
Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". I had
assumed that a standard 1/2" tap fitting would work fine but have now
discovered that the US use a different thread pattern to the UK Looking
at the instructions more closely it appears that the connection is
actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from? Ideally I would require
a 1/2" male NPT to 1/2" female BSP but anything to BSP would be OK as I
can plumb around it..

Any help appreciated.

thanks

Lee.

Solder a bit of copper pipe into the threaded bit. It might have to
be bored out.


At 1/2", BSPT is almost the Same as 1/2" NPT. TPI is the same. The Taper is
the Same. But one has a 55 Deg Thread form and the Other has 60 deg.

They quite happily fit together.

Looking at the tables, I'd agree that the sizes are very close, and I suspect with normal tolerances they would fit together with no problems. I'd suspect the most likely scenario for having problems would be fitting an NPT male into a BSP female thread, which isn't the problem here.
Unforthunately when I had the same kind of problem the threads were 1/4", where the TPI are different...

Trying the BSP fitting, it goes about half way in relatively easily but then starts to get tight. I didn't want to force it at this stage in case it threaded it and I would be screwed... I also found a Nickel plated Brass fitting but unsure whether this would work? Anyone any idea what UK brass fittings are actually made from? I assume they are not solid brass?

The word is "passivated".

MBQ

Ah... thanks for the clarification. Anyone know whether this will be OK for a tap fitting?

Some gold passivated treatment involves chromates, which are somewhat
toxic. However the amount actually in contact with the water may be very
small, depending on the design. Personally, I'd probably not worry about
it, but YMMV

"Lee Nowell" wrote in message
...
Ty

On Monday, May 21, 2012 6:18:52 PM UTC+1, wrote:
On Monday, May 21, 2012 4:14:06 PM UTC+1, Baz wrote:
"harry" wrote in message
...
On May 19, 8:09 pm, Lee Nowell wrote:
Hi All,

I bought a Grohe tap whilst in the US and the fittings are 1/2". I had
assumed that a standard 1/2" tap fitting would work fine but have now
discovered that the US use a different thread pattern to the UK
Looking
at the instructions more closely it appears that the connection is
actually 1/2" NPT rather than BSP.

Anyone any idea where I can get a converter from? Ideally I would
require
a 1/2" male NPT to 1/2" female BSP but anything to BSP would be OK as
I
can plumb around it..

Any help appreciated.

thanks

Lee.

Solder a bit of copper pipe into the threaded bit. It might have to
be bored out.


At 1/2", BSPT is almost the Same as 1/2" NPT. TPI is the same. The Taper
is
the Same. But one has a 55 Deg Thread form and the Other has 60 deg.

They quite happily fit together.

Looking at the tables, I'd agree that the sizes are very close, and I
suspect with normal tolerances they would fit together with no problems.
I'd suspect the most likely scenario for having problems would be fitting
an NPT male into a BSP female thread, which isn't the problem here.
Unforthunately when I had the same kind of problem the threads were 1/4",
where the TPI are different...

Trying the BSP fitting, it goes about half way in relatively easily but then
starts to get tight. I didn't want to force it at this stage in case it
threaded it and I would be screwed... I also found a Nickel plated Brass
fitting but unsure whether this would work? Anyone any idea what UK brass
fittings are actually made from? I assume they are not solid brass?

That sound right Lee. The taper is just starting to engage. Carry on and it
will tighten right up.
Baz