[[email protected]]

Hi All,

We are coming to the end of having the builders in (I dont plan to ever do it again!).

The latest is, we asked him to have the plumber fit thermostic valves to some of our existing radiators.....

Plumber said it cant be done, as our rads are 3/4€� whereas the valves are 1/2€�.

Is he right? Or is it just a question of unscrewing the tail from the rad and screwing in one to take the half inch valve?

TIA

Chris

[alan_m]

On 21/12/2017 15:59, wrote:
Hi All,

We are coming to the end of having the builders in (I dont plan to ever do it again!).

The latest is, we asked him to have the plumber fit thermostic valves to some of our existing radiators.....

Plumber said it cant be done, as our rads are 3/4€� whereas the valves are 1/2€�.

Is he right? Or is it just a question of unscrewing the tail from the rad and screwing in one to take the half inch valve?


https://www.toolstation.com/shop/Plu...on+Bush/p98490


--
mailto : news {at} admac {dot} myzen {dot} co {dot} uk

[Dennis@home]

On 21/12/2017 15:59, wrote:
Hi All,

We are coming to the end of having the builders in (I dont plan to ever do it again!).

The latest is, we asked him to have the plumber fit thermostic valves to some of our existing radiators.....

Plumber said it cant be done, as our rads are 3/4€� whereas the valves are 1/2€�.

Is he right? Or is it just a question of unscrewing the tail from the rad and screwing in one to take the half inch valve?

TIA

Chris


https://www.screwfix.com/p/bush-x/98427#_=p ?

[Andy Burns[_13_]]

wrote:

Plumber said it cant be done, as our rads are 3/4€� whereas the valves are 1/2€�.

The tails seem to have changed from unions to pipe inserts with an olive

But I'd expect with a radiator hex key, you could take the union ends
out, and screw in the pipe inserts that come with the new TRVs.

All the parts in my bag of bits (blanking plugs, plugs with bleed
screws, brass union tails, chrome compression tails) look the same
thread ...

[[email protected]]

Thanks everyone!

[Roger Mills[_2_]]

On 21/12/2017 15:59, wrote:
Hi All,

We are coming to the end of having the builders in (I dont plan to ever do it again!).

The latest is, we asked him to have the plumber fit thermostic valves to some of our existing radiators.....

Plumber said it cant be done, as our rads are 3/4€� whereas the valves are 1/2€�.

Is he right? Or is it just a question of unscrewing the tail from the rad and screwing in one to take the half inch valve?

TIA

Chris

Sack the plumber! Of course it can be done.

If the ports in the radiator are *truly* 3/4"BSP, you can get bushes
which screw into those, with a 1/2" BSP thread on the inside into which
you can screw a standard radiator tail.

But the bloke sounds so clueless that I wonder whether they *are*
3/4"BSP - bearing in mind that the thread on a 1/2" BSP fitting is
approx. 3/4" in diameter. It's very unusual these days to find radiators
with anything other than 1/2" BSP threads.
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

[John Rumm]

On 21/12/2017 15:59, wrote:
Hi All,

We are coming to the end of having the builders in (I dont plan to ever do it again!).

The latest is, we asked him to have the plumber fit thermostic valves to some of our existing radiators.....

Plumber said it cant be done, as our rads are 3/4€� whereas the valves are 1/2€�.

Is he right? Or is it just a question of unscrewing the tail from the rad and screwing in one to take the half inch valve?

The fitting in the rad for the tails is the same, even if many modern
TRVs use a stub of 15mm pipe that goes in the rad socket, and the valve
makes a compression fitting onto it rather than the traditional cone joint.

However, as you rightly suggest, there is nothing stopping you removing
the tail from the rad an using the one that comes with the TRV.

--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

[newshound]

On 21/12/2017 22:24, Roger Mills wrote:
On 21/12/2017 15:59, wrote:
Hi All,

We are coming to the end of having the builders in (I dont plan to
ever do it again!).

The latest is, we asked him to have the plumber fit thermostic valves
to some of our existing radiators.....

Plumber said it cant be done, as our rads are 3/4€� whereas the valves
are 1/2€�.

Is he right? Or is it just a question of unscrewing the tail from the
rad and screwing in one to take the half inch valve?

TIA

Chris

Sack the plumber! Of course it can be done.

If the ports in the radiator are *truly* 3/4"BSP, you can get bushes
which screw into those, with a 1/2" BSP thread on the inside into which
you can screw a standard radiator tail.

But the bloke sounds so clueless that I wonder whether they *are*
3/4"BSP - bearing in mind that the thread on a 1/2" BSP fitting is
approx. 3/4" in diameter. It's very unusual these days to find radiators
with anything other than 1/2" BSP threads.

+1 about sacking the plumber.

But there are two different thread pitches of very similar diameter
found on the "copper" side of radiator valves, which can be confusing.

[Roger Mills[_2_]]

On 22/12/2017 20:13, newshound wrote:
On 21/12/2017 22:24, Roger Mills wrote:
On 21/12/2017 15:59, wrote:
Hi All,

We are coming to the end of having the builders in (I dont plan to
ever do it again!).

The latest is, we asked him to have the plumber fit thermostic valves
to some of our existing radiators.....

Plumber said it cant be done, as our rads are 3/4€� whereas the
valves are 1/2€�.

Is he right? Or is it just a question of unscrewing the tail from the
rad and screwing in one to take the half inch valve?

TIA

Chris

Sack the plumber! Of course it can be done.

If the ports in the radiator are *truly* 3/4"BSP, you can get bushes
which screw into those, with a 1/2" BSP thread on the inside into
which you can screw a standard radiator tail.

But the bloke sounds so clueless that I wonder whether they *are*
3/4"BSP - bearing in mind that the thread on a 1/2" BSP fitting is
approx. 3/4" in diameter. It's very unusual these days to find
radiators with anything other than 1/2" BSP threads.

+1 about sacking the plumber.

But there are two different thread pitches of very similar diameter
found on the "copper" side of radiator valves, which can be confusing.

I've certainly found different thread pitches used on compression joints
for connecting radiator valves to the external pipework - which I think
is waht you are referring to. But never on the tails themselves - they
are always 1/2" BSP.
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

[DerbyBorn[_5_]]

If a plumber does't have it in the van it can't be done!