If you are searching for the best nitrogen flow indicator then you landed on the right page. Here we have compiled a list of the top nitrogen flow indicator.
We have spent around 28 hours to find the right option for you and based on our research BETOOLL Nitrogen Regulator with 0-400 PSI Delivery Pressure Equipment Brass Inlet Outlet Connection Gauges is our top pick for you. This is one of the best products currently available in the market. However, if you don’t want to spend extra then we have another great option for you is Turbo Torch 0386-0849 NFM-TT Nitrogen Flow Meter. Below is a review of some of the best nitrogen flow indicator, together with their specifications and functions. So without further waiting, Let’s dive right in.
Best nitrogen flow indicator

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Uniweld NV1 NitroVue Nitrogen Flow Indicator
Uniweld NV1 NitroVue Nitrogen Flow Indicator
Features
- Easy to read flow indicator label and the precision adjustable valve give complete control over the low flow of nitrogen gas
- Bright orange float ball visually confirms the flow of nitrogen gas
- Purge the copper lines at 20+ SCFH and then reduce the flow to Braze at 3-5 SCFH during the brazing process
- Protected from over pressure with a reseatable safety blow off that opens at 200 psi
Uniweld UNF3 Nitrogen Flow Indicator with 1/4-Inch Female Flare Inlet Connection and 1/4-Inch Male Flare Outlet Connection
Uniweld UNF3 Nitrogen Flow Indicator with 1/4-Inch Female Flare Inlet Connection and 1/4-Inch Male Flare Outlet Connection
Features
- 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
SPARC Nitrogen Flow Indicator 1/4″ SAE Flare Inlet and Outlet 50PSI 2YR USA Warranty
SPARC Nitrogen Flow Indicator 1/4" SAE Flare Inlet and Outlet 50PSI 2YR USA Warranty
Features
- EZ Connections: Our Nitrogen Flowmeter features a 1/4" SAE Female Flare Inlet Connection, and a 1/4" SAE Male Flare Outlet Connection for quick and easy setup with your nitrogen regulator, brazing hose, pressure testing rig etc! Our SP00021 nitrogen regulator is a perfect fit!
- Precise Measurements: The SP00022 flowmeter offers high precision gas flow control even at low flow rates for nitrogen purging applications, and goes all the way up to 75 SCFH for jobs needing a lot of gas! Input pressure is a constant 50psi.
- EZ To Read: Our purge tool has a float ball indicator to visually confirm the nitrogen is flowing during the welding, pressure testing, brazing of copper tubing in HVAC systems, or any other operation.
- Safety First: We include a factory calibrated Pressure Safety Relief Rupture Disk, which protects users from overpressurization of the flow meter.
- Lifetime Warranty: Your welding gas regulator is protected by an industry first no-hassle lifetime warranty from SPARC. Rely on our dedicated support team comprised of industry veterans in Denver, Colorado via email, phone, or text from 9AM to 5PM MST.
Turbo Torch 0386-0849 NFM-TT Nitrogen Flow Meter
Turbo Torch 0386-0849 NFM-TT Nitrogen Flow Meter
Features
- Provides precision gas flow control for nitrogen-purging applications
- Use with any nitrogen-purging regulator equipped with a 7/16" - 20 male flare
- Controls the flow of nitrogen gas through copper tubing while brazing
- Over-pressure safety relief valve
- Excellent accessory to the Turbo Torch Nitrogen Purge Kit and Nitrogen Purge Regulator
BETOOLL Nitrogen Regulator with 0-400 PSI Delivery Pressure Equipment Brass Inlet Outlet Connection Gauges
BETOOLL Nitrogen Regulator with 0-400 PSI Delivery Pressure Equipment Brass Inlet Outlet Connection Gauges
Features
- CGA580 Inlet Connection, 1/4 Inch Male Flare Outlet Connection and Easy to Read 2 Inch Gauges with Protective Rubber Gauge Boots
- Nitrogen Regulator, Delivery Pressure 0-4000 PSI.
- Durable brass piston designed diaphragm, self re-seating relief valve (not designed to protect downstream system)
- Large brass Tee Handle with stainless steel pressure adjusting screw and regulator bushing that prevents galling
Victor 0386-0849 Turbo Torch Nfm-Tt Nitrogen Flowmeter
Victor 0386-0849 Turbo Torch Nfm-Tt Nitrogen Flowmeter
Features
- Outflow 0 to 75 scfh and 0 to 35 lpm
- 1/4 inch
- Brass body construction
- 1/4 inch
Uniweld Products UNF3 Uni-Weld Nitrogen Flow Indicator 50 psi
Uniweld Products UNF3 Uni-Weld Nitrogen Flow Indicator 50 psi
Features
- 1/4 inch
- 1/4 inch
- Sold in each
- Country of origin: United States
Western Enterprises VN-500 Flowmeter Nitrogen Purging Regulator w/500 PSI Test Pressure, BRASS
Western Enterprises VN-500 Flowmeter Nitrogen Purging Regulator w/500 PSI Test Pressure, BRASS
Features
- Easy-to-read nitrogen cylinder Content gauge with preset flow rates
- Heavy-duty brass body designed for rugged field use
- Hybrid design - regulator and flowmeter all in one
- No adaptors needed
Diversitech Nitrogen Purge Tool with Adjustable Dial, DP-1
Diversitech Nitrogen Purge Tool with Adjustable Dial, DP-1
Features
- HVAC NITROGEN REGULATOR TOOL: Effortlessly prepare for purging and brazing copper pipes by setting the tool to off and connecting standard 1/4" refrigerant hoses in mere seconds
- QUICK CHANGE DIAL: Seamlessly toggle between Purge, Braze, and Off settings with unparalleled ease, ensuring optimal nitrogen flow tailored to the specific requirements of each operation
- 50 PSI INLET PRESSURE: Designed to function optimally with a 50 PSI inlet pressure, while accommodating a maximum inlet pressure of 200 PSI, ensuring effective purging and brazing operations
- ROBUST DESIGN: Crafted with durability in mind, this nitrogen flow meter boasts a rugged construction, ensuring longevity and reliability, offering peace of mind during operation
- IDEAL SIZE: With dimensions of 6" x 1.85" x 7.5", this purge tool is precisely tailored to fit standard fittings, offering the perfect balance between compactness and functionality
SPARC Nitrogen Regulator 0-600PSI CGA580 Inlet, 1/4″ Flare Output 2 Year USA Warranty
SPARC Nitrogen Regulator 0-600PSI CGA580 Inlet, 1/4" Flare Output 2 Year USA Warranty
Features
- Simple + Safe Connections: The industry-standard CGA580 inlet fitting will thread into any Nitrogen, Argon, Helium, or other Inert Gas Tank. The 1/4" SAE Male Flare Outlet Connection features 7/16"-20 threads for easy hook-up to your HVAC gauges, shock absorber chucks, and more!
- Durable Construction: Solid brass, full size piston regulator with clear, easy to read, single-scale 2” gauges covered with rubber protectors, keeping them safe from bumps and dings on the jobsite. No metric scales to clutter the gauge face.
- Accurate Pressure Delivery: Our premium inert gas regulator allows for an input pressure of 0-3,000PSI (Gauge reads 0-4,000PSI) and an adjustable output from 0-600PSI (gauge reads 0-800PSI).
- Applications and Uses: Great for HVAC Purging / Inertization / Pressure Tests / Leakage Tests / Brazing / Soldering / Welding / Filling Tires + more!
- We've Got Your Back! SPARC backs each regulator with a rock-solid LIFETIME warranty against manufacturing defects. We are based out of Denver, CO and offer customer service and support via phone, text, and e-mail.
In this article, we have reviewed the best nitrogen flow indicator for our readers. We hope you get the perfect nitrogen flow indicator from our above list. If you didn’t find your desired one then check out SPARC Nitrogen Flow Indicator 1/4″ SAE Flare Inlet and Outlet 50PSI 2YR USA Warranty, one of the most sold items in the market.