Nitrogen Flow Indicator Welding Tool Pressure Control Regulator Mete Gas Brazing. Nitrogen Flow Indicator, 1/4 Inch Female Flare Inlet Connection, 1/4 Inch Male Flare Outlet Connection. Provides extremely low pressure (3 to 4 CFH) precision gas flow control for nitrogen purging applications.
Nitrogen Flow Indicator uses a float ball to visually confirm the nitrogen is flowing during the brazing of copper tubing in HVACR systems. Maximum Inlet Pressure 50 PSI. Over Pressure Safety Relief Rupture Disk. New and improved version is the Uniweld NV1 Nitrogen Flow Indicator Uniweld UNF3 Nitrogen Flow Indicator provides extremely low pressure precision gas flow control for nitrogen purging applications during the brazing of copper tubing in Air Conditioning and Refrigeration systems. 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 TXV and within the Air Conditioning and Refrigeration system resulting in premature failure. The UNF3 Nitrogen Flow Indicator uses a float ball to visually confirm the nitrogen is flowing and allows the technician to first flush the copper lines at 25-35 CFH and then reduce the flow to 3-4 CFH during the brazing process thus conserving and saving nitrogen. 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 UNF3 maximum inlet pressure is 50 PSI and must be connected to a Nitrogen Regulator with 1/4 inch male flare outlet connection Uniweld Part No.Any product you return must be in the same condition you received it and in the original packaging. We usually respond within 24 hours on weekdays. Thank you for shopping at our store. The item "Nitrogen Flow Indicator Welding Tool Pressure Control Regulator Mete Gas Brazing" is in sale since Thursday, May 3, 2018. This item is in the category "Business & Industrial\HVAC & Refrigeration\HVAC & Refrigeration Tools\Other HVAC & Refrigeration Tools". The seller is "towgros-0" and is located in miami . This item can be shipped to United States.