What is the proper procedure for sweating copper pipe fittings?

Question

What is the proper procedure for sweating copper pipe fittings?

Answer 1

i agree with both answers here

AND...

be sure you are using 95/5 approved solder if the pipes are for potable water.  

also be sure you are using legal flux.

Answer 2

you need to take sand cloth and clean both sides of the pipe. ream your pipe. now use a fitting brush to clean the inside of the fitting on both sides. flux the fittings and the pipe. put them all together. now heat up the fitting not the pipe. the solder will go towards the heat. once it is hot enough add solder. try and get it nice and clean and all the way around. don't worry you wont have a pretty one your first time. after your done wipe off the pipe and fitting to clean up the flux. be careful its hot.

Answer 3

Clean your fittings with sand cloth and or a steel wire brush. Clean the inside off the female fittings and the outside of the pipe.

apply a flux paste if using soft solder to the male fitting or pipe only. Insert your fittings and apply just enough to see the flux begin to smoke a bit then move your flame to the back side  of joint being soldered. Apply the solder to the joint and the solder will flow toward the heat.

Make sure it has drawn itself into the joint all the way round.

Don't leave the heat too long.  Turn off the torch. Then carefully wipe the excess around the joint once with a dry rag. Let it cool then lightly sand or brush your newly made joint just a bit to remove any flux residue (Which would tarnish the joint if left on)