RX WELD Nitrogen Purge Tool, HVAC Brazing Regulator

Works great

I bought this for my hubby. He has found it to be very useful and the durability is top notch. It was a good value, easy to use.

This unit is very simple and easy to use - just dial which function you want and use it. If you want more fine adjustments on the flow rate during brazing, look elsewhere, but for simple basic function, both the purge and the braze function do their thing. For small jobs, the braze setting might flow too much, and this item is not adjustable.

Great product for a reasonable price. I use it almost daily and have had zero issues.

Just as described

all good

I've had other ones that were made of better quality and durable this one seems cheaply made. I question how accurate the airflow is, when brazing there seems to be a lot more flow of nitrogen than is needed.

Can be used to maintain test pressure of 150 pounds with a slow feed, while searching for a small leak. Instructions say 150 pounds maximum. Has three settings: off, purge (slow) and braze (faster). Purge and braze can be sped up or slowed down by regulating feed pressure to the device. I found that a slow purge requires only a low feed pressure to this device, just enough to get the pressure regulator to flow to it is enough. The braze setting has a much higher flow rate than I expected.