SECTION 7 I OTHER THINGS TO KNOW

SWEAT SOLDERING TIPS

MEASURING PIPE LENGTHS: Always be sure to include the length of pipe that goes inside the fitting. On 3/4"pipe, this length is about 3/4".

about 3/,-

:

I

engagement

NO

YES

_i i

CUTTING PIPE: Turn the pipe cutter back and forth around the outside of the pipe. Tighten the pipe cutter slowly with each turn until all the way through the pipe. To keep from crushing or distorting the pipe, do

not tighten the cutter too much at a time. File burrs from cut ends.

CLEAN PIPE AND FITTING SOLDERING SUR- FACES: With emery cloth, fine sandpaper or steel wool, clean the end of the pipe and inside of the fitting. Clean surfaces until they shine. Do not grind off too much material, making the fit too loose.

clean surfaces

thoroughly

CHECK THE FIT: Push the pipe into the fitting as far as it will go. Use some force to slip together, but do not hammer or pound. If too tight, clean surfaces until fit is good.

PUT ON PASTE FLUX: Freely apply paste flux on both cleaned surfaces. Place pipe into the fitting and turn to spread the paste around.

BEFORE SOLDERING, READ THESE SAFETY

GUIDES.

Keep torch flame away from walls, the water softener, and other materials that will burn.

Do not touch newly soldered pipe with your hands.

Wrap nearby, already soldered joints with a wet cloth so solder does not melt.

Let soldered joint_ cool slowly. Sudden cooling can crack or weaken the solder.

SOLDERING: Light the torch and set to a moderate flame. Move the flame over and around the joint to heat pipe and fitting. In a short time, touch the end of the solder wire to the tip of the fitting. DO NOT PLACE SOLDER IN THE FLAME. The solder will melt and draw into the connection when the pipe and fitting are at the rig ht temperature. Run the solder around the lip until the joint is full. Do not overfill as solder will run into and harden inside the fitting. Being careful not to touch the pipe with your hands, make a quick swipe around the joint with a cloth to take off excess solder.

For a good sweat solder joint, the pipe and fitting must not have any water inside them. Water, when heated by the torch, weakens the solder and often the joint will leak. If you can not keep the inside of the pipe dry, wad up a piece of bread into a ball. After putting paste flux on both the pipe and fitting, place the bread wad into the pipe and poke in several inches. Put the pipe and fitting together and solder. The bread absorbs moisture while you are soldering. When the water is turned on, the bread dissolves and is flushed out an open faucet.

LEAKING CONNECTIONS: You can try to reheat and resolder a leaking joint, but it's usually best to start over. Turn off the water, reheat and take the pipe and fitting apart. Take off all old solder, cleaning down to the copper surface. Apply new paste flux and solder again.

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Sears 625.34823 specifications Other Things to Know, Sweat Soldering Tips, Before SOLDERING, Read These Safety, Guides

625.34823 specifications

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