Uniweld NitroVue Nitrogen Purging Indicator

Uniweld NV1 NitroVue™ simplifies the purging of nitrogen during the brazing of copper tubing tubing in Air Conditioning and Refrigeration systems with an “easy” to read flow indicator label and a precision adjustable valve to control the low flow of nitrogen gas.

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Uniweld NitroVue Nitrogen Purging Indicator

Uniweld NV1 NitroVue™ simplifies the purging of nitrogen during the brazing of copper tubing in Air Conditioning and Refrigeration systems with an “easy” to read flow indicator label and a precision adjustable valve to control the low flow of nitrogen gas.

The nitrogen must be flowing to displace the oxygen inside the tubing during the brazing process, preventing internal oxidation and the resulting scale. Scale build up inside the tubing can cause blockage in the TX Valve and within the Air Conditioning and Refrigeration system resulting in premature failure.

If the ball does not rise in the tube there is no flow of nitrogen only static pressure and oxygen is not being displaced. The NV1 must be connected to a Nitrogen Regulator with the delivery pressure set at 60 PSI to control the nitrogen gas pressure.

The NV1 is protected from over pressure with a resettable safety blow off that opens at 200+ PSI.

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