You can usually solder on a
short length of
tubing, screw it into the valve, and then start the rest of the run. You can usually make up those first joints on the work bench and screw them in before you put the valve in position.
Can you solder brass threaded fittings?
As brass has a greater density than copper, it takes longer to heat up to the point where the solder will melt. After soldering, the threaded end of the fitting is screwed to the appliance. Use solder to join the copper pipe to the brass fitting.
Can I solder a threaded fitting?
Just a tiny dab of solder on the threads of a fitting can make a fitting nearly impossible to tighten. It’s best to solder a threaded fitting to a pipe before you connect the other end of the pipe. That way, you can stand the pipe upright so excess solder will run away from the threads.
Will soldering melt Teflon tape?
It
will certainly burn if
you’re heating the same fitting and soldering the other end of it. I would solder a short chunk of pipe to the threaded fitting first, then tape/thread it in, then solder the 90 to the short pipe…
Can you solder a fitting?
As you’ll see, you don’t need special
skills
for soldering copper pipe fittings successfully. You can easily solder a leakfree copper solder joint on the first try—but you can also make mistakes.
What is the best solder to use for brass?
If you have done any electronic soldering you probably used a lead based solder. This is fine for soldering electronic components together but isn’t really strong enough, nor does it give a great bond, to copper and brass. Your best option is to use
a silver solder
.
Does copper to brass need Teflon tape?
In general, Teflon tape is recommended to be used on most threaded connections that do not have a rubber gasket. If you’re inquiring about brass fittings,
Teflon tape is only necessary if there
isn’t already a built-in rubber seal. … Just like anything, there is a wrong and right way to apply Teflon tape.
How many times do you wrap Teflon tape?
You only need to use
2-3 wraps of tape, however thinner tape may need 4-5 wraps
. Make sure you start wrapping at the end of the fitting, covering the end to prevent the thread from seizing.
Does heat melt Teflon tape?
PTFE itself has a
high melting/decomposition point
(of around +327 Celsius), but it begins to deteriorate as temperatures rise through the +200 to +260 Celsius range.
Should I use Teflon tape on copper fittings?
This is a critical factor if you’re planning to use Teflon tape for a DIY project, since Teflon tape can actually cause leaks if misused. For example, if you’re working on PVC, copper or PEX pipes, these use alternate bonding methods and
Teflon tape isn’t necessary
.
Do you need flux to solder?
Yes,
solder can be used without flux
. To do so, you will need something other than flux to break down the oxides on the metal surface, without which your surface may be damaged or not properly cleaned.
Why does solder not stick to wire?
If you let the solder sit on the iron, the flux quickly boils off (the fumes are from flux, not the lead). And without flux, soldering becomes
almost impossible
. Flux removes oxidation from metals, and it’s crucial because solder won’t stick to oxidized metals, and metals oxidize very quickly at soldering temperatures.
How much solder do you need for a joint?
It’s tempting to melt a few inches of solder into a joint as extra insurance against leaking. But excess solder can puddle inside pipes, restricting water flow, and can form small balls that break loose and damage faucet valves. Use
about 1/2 in. of solder for 1/2-in.
Can I use silver solder on brass?
The amount of zinc in a metal lowers the melting point, that’s why brass melts at a lower temperature than pure copper. As you can see in the chart above, you
can use any silver solder on copper or brass metal
, but solder flow points vary between vendors so always check the flow points of the solders you choose to use.
What kind of flux do you use with silver solder?
This is a white paste flux that’s used for 90% of silver brazing applications. White flux is useful for brazing copper, brass, steel, stainless steel, and nickel alloys. It has an active temperature range of 1050 -1600°F (565 – 870°C).
Can you solder brass to Aluminium?
Thankfully,
Super Alloy 1
makes easy work of aluminum repair, enabling this one multi-metal solder to repair not only brass and aluminum, but a host of other metals–individually or in any combination: bronze, steel, copper, pot metal, stainless, white metal, or zamak in any combination, at 350°F.
