How to cut
3 Inch Copper Pipe
How To CORRECTLY Solder a 2" Copper Joint (Step By Step) | GOT2LEARN
Sharing buttons:
what's up guys and welcome back to the
channel in this video I want to show you
how to solder a two inch copper joint
just like my other soldering videos I'll
be giving you a step-by-step breakdown
and show you the correct technique to
get a properly soldered joint and if you
have any questions at the end
feel free to comment below this video
will cover the tools and materials the
preparation the soldering process and
finalizing the joint I'll also show you
the results at the end that prove that
the joint was soldered properly using
this method by cutting it in for and
showing you that the solder did indeed
entirely fill the joint if you're just
interested in seeing the soldering
process skip here so let's get started
soldering bigger diameter pipes requires
a good torch using a normal propane
torch that you use for a 1/2 inch or 3/4
inch will do the job but it'll take a
lot more time and I don't suggest doing
it this way
I personally do a lot of brazing
soldering and cutting so I have an
oxy-acetylene setup but just a B tank
what acetylene will do the solder I'm
using is just normal 95/5 solder for
flux I'm using tinning flux over normal
flux if you don't know what tinning flux
is tinning flux contains solder powder
in it which gives you a little more
assurance when soldering bigger fittings
like this here's a comparison between
both the normal flux on the left and
tinning flux on the right when you heat
normal flux it just cleans the copper
but with tinning flux it'll tinned a
joint hence why it's called tinning flux
to clean the pipes and fittings I prefer
using these coarse abrasive pads I find
it easier on the hands and wrists and
that's it for the tools and materials so
to prepare the joint the first thing I
do is check if the pipe is cut straight
you want to have full penetration on any
soldered joints to minimize your chance
of having a leak if it wasn't cut
square I use a grinder with a grinding
disc and not a cutting this to get it
square it only takes about one minute to
get it done but before make sure to put
on your safety glasses not to get
anything in your eyes and here's what it
should look like once you're sure that
the pipe was cut straight you want to
deburr the inside of the pipe I won't go
into details about deburring but if
you're interested in knowing why it's
important just watch this video right
here then go ahead and thoroughly clean
your pipes and fittings normally I use
the grid ones but for bigger diameter
piping I tend to use the red ones
because they're coarser and it just
makes the task easier on the wrists and
hands this is what both the pipes and
fittings should look like there should
be no pits or spots left before assembly
once it's been mechanically cleaned wipe
away any dust or dirt before fluxing
using a clean rag I personally don't
like using a whole lot of flux I'm more
an advocate of if it's applied
thoroughly around the pipe then it's all
good any excess will either drip out or
be pushed inside the fitting which is
not wanted also you want to wipe off any
excess flux so it doesn't go all over
the place
all right on to soldering now let me
start by explaining why I use the method
I use when soldering 2 inch piping I
found that heating the bottom half and
then finishing by the top half gives me
the best results let me explain
by soldering the bottom portion first it
gives the solder on top a place to sit
on to ensure it stays inside the joint
so the order in which I solder is the
following starting with the two bottom
halves and finishing with the two top
halves also the way I place my torch you
want to place your torch with the
hottest part closest to the rear of the
cup here's why the solder needs enough
heat to travel from the front of the
joint to the back
if you do the opposite and place the
flame in the front of the cup this
solder might not have enough heat to
reach the back leaving you with an
incomplete joint that might leak which
is why it's crucial to have the hottest
part of the flame at the rear and
finally where I apply the solder I tend
to apply my solder in the back of the
flame like this this way I'm sure that
the joint is hot enough to accept it
here's all of the goodness in real time
[Music]
all right good job so as you can see it
gives the joint a nice clean look to it
with no blobs of solder but most
importantly is how well the joint was
covered inside so let's open it up and
inspect our work as we could see the
solder reached the back of the joint
around the whole joint which is exactly
what you want but did it cover the whole
entire joint let's open them up and
check and it did in fact cover the whole
joint now a perfect joint doesn't exist
and we could see it right here there are
some voids but nothing major that would
cause a leak and that is how to solder a
two inch copper joint if you guys
enjoyed this video please give it a
thumbs up share it and subscribe for
more cool upcoming videos and until the
next one thanks for watching
