PBP Blog

Vacuum Pump Oil

If we are going to discuss vacuum pump oil it’s important to understand what it is first. Most HVAC application…

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HVAC/R BRAZING INDICATORS

First, let’s get straight that BRAZING is when you use a filler rod that isn’t the exact same material as the base metal but that melts ABOVE 840°F. Soldering is the same but at temperatures below 840°F.

5% VS. 15% SILVER SOLDER

First, let’s get straight that BRAZING is when you use a filler rod that isn’t the exact same material as the base metal but that melts ABOVE 840°F. Soldering is the same but at temperatures below 840°F.