Uniweld UNF3 Nitrogen Flow Indicator with 1/4-Inch Female Flare Inlet Connection and 1/4-Inch Male Flare Outlet Connection

Description

• 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

Product Description

*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. RHP400, RHP500, RHP800 - Sold Separately) to control the nitrogen gas pressure.

From the Manufacturer

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. RHP400, RHP500, RHP750 Sold Separately) to control the nitrogen gas pressure.

Shipping and Returns

• We offer tracked shipping on all orders. Tracking information will be shared as soon as the order is dispatched.
• Please check the delivery estimate before adding a product to the cart. This is displayed for every product on the website.
• Available shipping methods and charges will be displayed at the time of checkout, depending on your exact location.
• All customers are entitled to a return window of 14 days, starting from the date of delivery of the product(s).
• Customers are advised to read our return policy for details of the return process, eligibility, refunds as well as cancellations or exchanges.
• In case of any issues or concerns about Shipping or Returns, please contact us and we will be happy to help.