[Roger Mills]

I'm shortly going to replace all my radiator valves with TRVs and drain-off
lockshields and reckon that it's probably a good idea to clean up the
threads in the rads to get rid of accummulated gunge (dried up Boss White
etc.) before screwing in the new tails.

Any idea where I can get a 1/2" BSP tap (plug rather than taper) for the
purpose? It doesn't need to be exotic, and won't be cutting new threads -
just cleaning up old ones. The sheds and local PMs don't seem to sell them -
nor do Screwfix or the likes of BES as far as I can see.
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored..
Messages sent to it may not be read for several weeks. PLEASE REPLY TO
NEWSGROUP!

[dennis@home]

"Roger Mills" wrote in message
...
I'm shortly going to replace all my radiator valves with TRVs and
drain-off lockshields and reckon that it's probably a good idea to clean
up the threads in the rads to get rid of accummulated gunge (dried up Boss
White etc.) before screwing in the new tails.

Any idea where I can get a 1/2" BSP tap (plug rather than taper) for the
purpose? It doesn't need to be exotic, and won't be cutting new threads -
just cleaning up old ones. The sheds and local PMs don't seem to sell
them - nor do Screwfix or the likes of BES as far as I can see.

http://www.toolstation.com/messages....9495&mainWin=1 should be
enough I would think.

[The Natural Philosopher]

Roger Mills wrote:
I'm shortly going to replace all my radiator valves with TRVs and drain-off
lockshields and reckon that it's probably a good idea to clean up the
threads in the rads to get rid of accummulated gunge (dried up Boss White
etc.) before screwing in the new tails.

Any idea where I can get a 1/2" BSP tap (plug rather than taper) for the
purpose? It doesn't need to be exotic, and won't be cutting new threads -
just cleaning up old ones. The sheds and local PMs don't seem to sell them -
nor do Screwfix or the likes of BES as far as I can see.
Try street markets and the like. Lots of old taps/dies etc from
specialist purveyors of dead men's sheds' contents...

[Roger Mills]

In an earlier contribution to this discussion,
dennis@home wrote:

"Roger Mills" wrote in message
...
I'm shortly going to replace all my radiator valves with TRVs and
drain-off lockshields and reckon that it's probably a good idea to
clean up the threads in the rads to get rid of accummulated gunge
(dried up Boss White etc.) before screwing in the new tails.

Any idea where I can get a 1/2" BSP tap (plug rather than taper) for
the purpose? It doesn't need to be exotic, and won't be cutting new
threads - just cleaning up old ones. The sheds and local PMs don't
seem to sell them - nor do Screwfix or the likes of BES as far as I
can see.

http://www.toolstation.com/messages....9495&mainWin=1 should
be enough I would think.

Thanks - but that's just a wire brush. I'm really looking for something
which actually screws into the thread and cuts out all the accummulated
crap.
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored.. Messages sent to it may not be read for several weeks.
PLEASE REPLY TO NEWSGROUP!

[Mark]

"Roger Mills" wrote in message
...
I'm shortly going to replace all my radiator valves with TRVs and
drain-off lockshields and reckon that it's probably a good idea to clean
up the threads in the rads to get rid of accummulated gunge (dried up Boss
White etc.) before screwing in the new tails.

Any idea where I can get a 1/2" BSP tap (plug rather than taper) for the
purpose? It doesn't need to be exotic, and won't be cutting new threads -
just cleaning up old ones. The sheds and local PMs don't seem to sell
them - nor do Screwfix or the likes of BES as far as I can see.

http://www.tapdie.com/html/bsp__taps.html

or Ebay


-

[Dave Plowman (News)]

In article ,
Roger Mills wrote:
I'm shortly going to replace all my radiator valves with TRVs and
drain-off lockshields and reckon that it's probably a good idea to
clean up the threads in the rads to get rid of accummulated gunge
(dried up Boss White etc.) before screwing in the new tails.

Any idea where I can get a 1/2" BSP tap (plug rather than taper) for the
purpose? It doesn't need to be exotic, and won't be cutting new threads
- just cleaning up old ones. The sheds and local PMs don't seem to sell
them - nor do Screwfix or the likes of BES as far as I can see.

Cut a couple of longitudinal slots down one of the old ones - that should
act as a tap to clear out any gunge. Perhaps better still get an iron
fitting and do it to that. Although brass should be ok.

BTW, the drain off lockshields work only for the pipe side if you close
the lockshield. IIRC.

--
*I couldn't repair your brakes, so I made your horn louder *

Dave Plowman London SW
To e-mail, change noise into sound.

[Roger Mills]

In an earlier contribution to this discussion,
Dave Plowman (News) wrote:


Cut a couple of longitudinal slots down one of the old ones - that
should act as a tap to clear out any gunge. Perhaps better still get
an iron fitting and do it to that. Although brass should be ok.

Possible, I suppose - and this *is* a DIY NG! g But I think I'd rather
have the real thing.

BTW, the drain off lockshields work only for the pipe side if you
close the lockshield. IIRC.

No - the other way round. The drain *always communicates with the rad
regardless of whether the valve is open or closed. So close the valve to
drain the rad while keeping the water in the pipe, and open it to drain the
pipe as well.
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored.. Messages sent to it may not be read for several weeks.
PLEASE REPLY TO NEWSGROUP!

[1501]

On 16 May, 12:08, "Roger Mills" wrote:
I'm shortly going to replace all my radiator valves with TRVs and drain-off
lockshields and reckon that it's probably a good idea to clean up the
threads in the rads to get rid of accummulated gunge (dried up Boss White
etc.) before screwing in the new tails.

Any idea where I can get a 1/2" BSP tap (plug rather than taper) for the
purpose? It doesn't need to be exotic, and won't be cutting new threads -
just cleaning up old ones. The sheds and local PMs don't seem to sell them -
nor do Screwfix or the likes of BES as far as I can see.
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored..
Messages sent to it may not be read for several weeks. PLEASE REPLY TO
NEWSGROUP!

Try http://www.tracytools.com/ If they can't help nobody can.

[Ed Sirett]

On Fri, 16 May 2008 14:26:33 +0100, Roger Mills wrote:

In an earlier contribution to this discussion, Dave Plowman (News)
wrote:


Cut a couple of longitudinal slots down one of the old ones - that
should act as a tap to clear out any gunge. Perhaps better still get an
iron fitting and do it to that. Although brass should be ok.

Possible, I suppose - and this *is* a DIY NG! g But I think I'd rather
have the real thing.

BTW, the drain off lockshields work only for the pipe side if you close
the lockshield. IIRC.

No - the other way round. The drain *always communicates with the rad
regardless of whether the valve is open or closed. So close the valve to
drain the rad while keeping the water in the pipe, and open it to drain
the pipe as well.

That's what i would expect also.


--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html