Shopping Cart

Your cart is empty.

Your cart is empty.

SPARC Nitrogen Flow Meter 0-75 SCFH Flow Indicator for Brazing, Welding, Purging HVAC 1/4' SAE Flare Inlet and Outlet 50PSI LIFETIME USA Warranty

4.8 (8) Write Review
Free shipping on orders over $29.99

$35.00

$ 15 .99 $15.99

In Stock
  • 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.


Product Description

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
Premium USA Backed Product
SP22 - Precision You Can Trust - Desktop

The SPARC Nitrogen Flowmeter offers precision gas flow control, even at extremely low pressures, making it an essential tool for nitrogen purging in various applications, including air conditioning and refrigeration systems, this flow indicator ensures a smooth, continuous nitrogen flow during the brazing of copper tubing, which is crucial for preventing internal oxidation and scale formation. By displacing oxygen inside the tubing, nitrogen purging eliminates the risk of oxidation, preventing the build-up of scale that can cause blockages in the TXV (Thermostatic Expansion Valve) and other critical components of HVAC systems. This proactive measure not only prevents system inefficiencies but also extends the life of the system by avoiding premature failure.

While fantastic for HVAC and refrigeration systems, the SPARC Nitrogen Flow Indicator is versatile enough for a range of other industries and applications that require precise gas flow control. Its ability to handle low-pressure nitrogen flow makes it an excellent choice for:

  • Plumbing: Used for purging lines during brazing or soldering of copper pipes, ensuring clean, oxidation-free joints.
  • Medical Gas Systems: Ensures proper nitrogen flow during the installation and maintenance of medical gas piping, essential for maintaining system purity.
  • Welding and Metal Fabrication: Provides nitrogen flow control for purging during stainless steel or titanium welding, preventing oxidation and preserving weld integrity.
  • Chemical and Petrochemical Industries: Maintains inert atmospheres in piping and vessels during maintenance, inspection, or repairs, reducing the risk of combustion or contamination.
  • Laboratories and Cleanroom Environments: Provides controlled nitrogen flow for purging gas lines, analytical instruments, or other sensitive equipment that requires an oxygen-free environment.

With its reliable performance and precise control, the SPARC Nitrogen Flow Indicator is an indispensable tool across a wide variety of industries where maintaining a pure, oxidation-free environment is critical. Whether for brazing, purging, or any other low-pressure nitrogen application, SPARC delivers the accuracy and performance you need to get the job done right.

Input Pressure 50PSI
Input Connection 1/4" SAE Flare Female (7/16"-20 Threads)
Output Connection 1/4" SAE Flare Male (7/16"-20 Threads)
Flow Rate 0-75 SCFH
Safety Pressure Release Yes, burst disc is integrated
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

JRF
Reviewed in the United States on August 29, 2024
Excellent price and good quality, I’ve used it for nitrogen purge when silver soldering. It serves well.
michael fostano
Reviewed in the United States on July 3, 2024
Reasonably priced.Does the same job as higher priced flow meter
TG RH
Reviewed in the United States on December 9, 2024
SPARC seems to build a good quality product. Ive used it a few times and it feels like a quality product.Some cheaper products feel as if they're made from inferior materials, but not this one. when you close the valve it has a good firm seat, and when turning the knob, you can tell the seals are of good quality too.
Customer
Reviewed in the United States on October 27, 2024
fit upon arrival. easy to use. seems accurate on flows. i like the plastic flow indicator. i can be rough of stuff and this seems nearly unbreakable.
rae ee
Reviewed in the United States on April 28, 2024
Works great and accurate exactly what i needed .
James Hall
Reviewed in the United States on May 27, 2023
I'm an HVAC Tech and we braze copper all the time, always flowing Nitrogen. This is a great product, solid construction. The big supply house stores charge 3 times the price. We have been using this every day for a week or so and the Boss said order another one. Highly recommend this. (Its fun to use also). Get your flow rate just right!
J. Walsh
Reviewed in the United States on December 3, 2023
I didn't want to pay a lot, so figure I'd try the SPARC. It works as advertised. It is a little fragile compared to the US brands. I would put it back in its styrofoam packaging after use. For the price, its great. There is nothing too complicated about trickling nitrogen so I went with the cheap brand. My use is for hvac brazing. When I first started doing hvac, I learned early that if you use your normal regulator to trickle in nitrogen while brazing, you will run out of gas pretty quickly. Works in a pinch, but you sometimes end up using more $$$ in nitrogen gas than the cost of this.
Toolmanjsp
Reviewed in the United States on June 23, 2020
The female thread knurled nut that goes onto the N2 regulator outlet had a burr that initially kept it from tightening all the way onto the 1/4" flare fitting. I was able to clean up that thread somewhat with a hooked scribe and got it to seal with a little light pliers action. I don't plan to remove it from the regulator and it is sealing, so its OK. One star off for the burred-up thread.