How to join 2 copper HVAC pipes together without brazing (heat, sink, installing)
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does anyone how to join 2 copper HVAC pipes without brazing? Can I use a copper Union with pressure fittings? I have a broken refrigerator that has the 1/8 pipe cracked, and I can get it working by fixing the pipes.
Having the system flushed/recharged would cost you more than a proper repair, so get it brazed. Unlike water, gas is much less forgiving to leaks, especially when it's under the pressure of a compressor.
No. brazing is much stronger than silver soldering
I'll clarify. OP said copper lines.
Brazing steel will yield possitive results as you say.
But, joint strength depends on several factors: clearance between parts, base metal composition, service temperature and joint quality (low voids, good penetration). Joint design will also affect strength.
The bulk tensile strength of silver solder alloys is 40,000-70,000 psi. When brazing copper-based alloys, failure will occur in the copper or brass. For copper this is usually the annealed strength of the copper alloy.
Been a licensed HVAC Tech for better that 30 years, I don't silver solder anything unleess it's close to a valve or control that excess heat can damage and even then I will use a heat sink if possible.
There is a new type of connection for copper pipes. You bascially just push each end into the connection. So far they waork great. They are really expensive so they are impractical for an entire plumbing job, but for a single commection, they make a lot of sense, and you will never set your house on fire installing them.
There is a new type of connection for copper pipes. You bascially just push each end into the connection. So far they waork great. They are really expensive so they are impractical for an entire plumbing job, but for a single commection, they make a lot of sense, and you will never set your house on fire installing them.
I don't think those are goin' to work for a line set on an A/C system.
15% stick silver solder copper to copper. Is this between condenser and drier?? If so steel to copper most likely. It can be silver soldered also although most would recommend brazing. Clean steel with alcohol after sanding. Flux well then solder. Compression fittings are out of the question. 1/8" tube??
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