Can I heat up a solder joint and turn it?

Most likely, you’ll need to cut the pipe and rework it with new fittings. If you heat the joint hot enough to melt the solder, you’d want to pull it apart to clean the joint, apply new flux, and solder it again.

How close can solder joints be?





Can you braze next to ProPress fittings?

Tubing Diameter Soldering Min Distance (inches) Soldering Min Distance (mm)
2 in 6 in 153 mm
2-1/2 in 7-1/2 in 191 mm
3 in 9 in 229 mm
4 in 12 in 305 mm

Can you Resolder a joint?

Just heat the joint up with your torch, once the solder starts to melt use Channel locks to pull the fittings apart. Once the joint is apart, wipe as much old solder off as you can with a rag. Now you can start over. Clean, Flux, solder.

Can you add solder to an existing joint?

Dry the outside of the elbow and sand (120-grit paper or cloth) around the leaking joint to remove all surface corrosion. Apply soldering flux around the whole joint and apply heat with a torch until the old solder melts. Add new solder until a shiny ring of solder shows all around the joint.

Can you Resweat a copper fitting?

If you have a leaky joint and the joint leaks at the solder connection, you can re-solder or “re-sweat” the joint to eliminate the leak. This is an easier way to correct the issue than replacing the joint completely.

Can you melt old solder?





Prime your iron by putting a dab of new solder on the tip. With the solder on the tip put it on the old solder and it should liquify. Soldering onto any metal object larger than a solder tag can be tricky because the metal conducts the heat away. It sometimes helps to warm everything up a little before starting.

How much pressure will a ProPress fitting hold?

The ProPress System meets the most rigorous testing standards and codes in the United States, Canada and Europe. In tests conducted by NSF International, joints made by the ProPress System have rated test pressures of 600 psi, and working pressures of 200 psi within an operating temperature range of 0° to 250° F.

How do you solder multiple copper joints?

How to Solder Copper Pipe Joints

  1. Buy a self-lighting torch. …
  2. Use a good-quality tubing cutter. …
  3. Use a steel brush for complete cleaning of pipes and fittings. …
  4. Apply tinning flux rather than regular flux. …
  5. Assemble the pipes, then solder the joints all at once. …
  6. Heat the joint just enough to melt the solder.

What’s better ProPress vs solder?



Unlike soldering, ProPress systems do not need an open flame to be completed. This creates a safer work environment and by not requiring a hot work permit, saves time. Another advantage over soldering, ProPress fittings can be installed without having to drain and dry the system beforehand.

Can I solder a copper joint?

Soldering vertical copper pipe shouldn’t be too different from working horizontally. If the joint and tip are hot enough, the solder should flow right in. Heat the middle of the fitting and apply the solder as soon as it starts to melt. Remove the heat once the solder starts moving.

Can you reuse soldered copper fittings?

Copper pipes are usually connected together using a variety of fittings, including elbows, T’s and couplings. You can remove copper fittings and reuse them by following a straightforward procedure that requires a moderate amount of time and effort.

How strong is a soldered copper joint?



A soldered four-inch Type L joint has a pressure rating of 440 psi. If the plumber in the field decides to braze that joint rather than solder it, the rating will be reduced to 293 psi — the annealed rating.

Can you overheat copper pipe when soldering?

If the metal being joined is too cool or too hot, tinning cannot occur. Overheating is a major problem when brazing or soldering copper pipe because the flux will burn (become oxidized), stop working, and become a barrier to tinning.

What happens if you use too much solder?

When you use too much solder you won’t be able able to tell whether a joint is good: a blob of solder may not wet the pin or the pad, resulting in an unreliable electrical connection. Proper wetting and good electrical contact is easily identified by a concave surface on the solder joint.

How strong is soldering vs welding?

Welding joints are the strongest, followed by soldered joints then brazed joints. Welding requires about 6,500 degrees Fahrenheit, while soldering requires about 840 degrees Fahrenheit. Workpieces and the metal base are heated and melted in welding. Soldering requires no heating of the workpieces.

What is the strongest solder?



A 60-40 solder (60% tin, 40% lead) is the most expensive, but it makes the strongest bond and is easiest to work with because of its low melting point.

What is a weldment?

Definition of weldment

: a unit formed by welding together an assembly of pieces.

Can you weld with a Bernzomatic torch?

It has a durable brass burn wand, independent fuel and oxygen controls and is pressure regulated for consistent performance when inverted, making it ideal for small brazing, welding and metal-cutting projects.

Can a propane torch be used for welding?



A propane torch makes welding safe, simple and efficient. Propane torches are categorized as air-fuel torches because they use a mixture of propane gas and oxygen. This mixture, when lit, produces a clean-burning flame suitable for heating or welding purposes.

Can I braze with a propane torch?

Brazing permanently joins two metals using a torch. You can use a propane torch to braze most metals you want to join. Propane torches are widely available in your local hardware stores, plumbing supply houses as well as at metalsmith and jewelry supply companies.