In this episode, Brent Ridley talks about the flame-free ZoomLock fittings and why he is using them for almost everything to replace brazing. These are tools from Parker, and they can give you leak-free fittings within seconds.

ZoomLock works in residential and commercial applications. The fittings come in a wide range of sizes for the large piping of VRF systems and the smaller copper tubing of residential A/C suction lines. Brent measures the tubing to make sure there's enough room. Then, he cuts the bell end off, deburrs the copper, sands the copper down, and applies the fitting. You do NOT have to apply a lubricant or anything before you add the fitting. The fittings have two grooves to match the grooves on the jaw; that is how the fitting can crimp properly.

Brent likes ZoomLock for its time-saving potential. You don't have to get your oxyacetylene (or air-acetylene) rig prepared and spend time brazing. There is also the potential to save money on the fuel and nitrogen you would use while brazing. As technology improves and the price goes down with increased production, it's possible that we can see ZoomLock-type fittings in more applications.

Brazing is a key skill, but it also comes with a lot of risk to our bodies and customer property, so ZoomLock is a promising replacement for brazing. Will ZoomLock replace brazing altogether? Probably not; it would be quite difficult to use those fittings on a reversing valve, for example. But is ZoomLock a nice tool to consider for some applications? I think so.

Brent and Bryan also discuss:

• How Brent was introduced to ZoomLock
• Stub lengths
• Oil compatibility (POE vs. mineral oil vs. refrigerant)
• Lateral strain on fittings
• Filter-driers

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