Prime Day deals are live! View Deals
Search  for anything...

VN-650 Flowmeter Nitrogen Purging Regulator

  • Based on 14 reviews
Condition: New
Checking for the best price...
$69.98 Why this price?
Prime Day Deal · 22% off was $89.99

Buy Now, Pay Later


As low as $11.66 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Jun 26
Order within 3 hours and 57 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Features

  • Read This Before You Buy: VN-650 nitrogen purge
  • Parameters: Preset purge 23-35 cfh, braze 3-6 cfh, pressure test 650 psi settings
  • Outlet Size: 1/4", Outlet Type: Male SAE Flare
  • Function: Purge, Braze, and Pressure Test with ONE unit
  • Rugged Brass Design: corrosion, pressure and stability resistance, not easy to wear or break, can maintain stable performance in the high-pressure nitrogen purging process

Material: Brass


Brand: SWIPROY


Exterior Finish: Brass


Inlet Connection Type: National Pipe Tapered


Outlet Connection Type: SAE


Maximum Operating Pressure: 650 Pound per Square Inch


Number of Ports: 2


Outlet Connection Size: 0.25 Inches


Specification Met: CSA, ULC


Smart Home Compatibility: Not Smart Home Compatible


Exterior Finish: Brass


Inlet Connection Type: National Pipe Tapered


Outlet Connection Type: SAE


Maximum Pressure: 650 Pound per Square Inch


Number of Ports: 2


Smart Home Compatibility: Not Smart Home Compatible


Thread Type: SAE Flare


Connector Type: Threaded


Thread Size: 1/4" SAE Flare


Valve Type: Globe Valve


Material Type: Brass


Specification Met: CSA, ULC


Brand Name: SWIPROY


Model Number: SWVN650


Manufacturer: SWIPROY


Unit Count: 1.0 Count


Included Components: VN-650 nitrogen regulator tool


Outlet Connection Size: 0.25 Inches


Size: 0.25 Inch


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jun 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • I’d buy it again if needed
Good product, quick easy and great for installs.
Reviewed in the United States on May 21, 2026 by Thomas Roake

  • Tested and Recommended – A Must-Have Regulator for Every HVAC Pro Tested and Recommended – A Must-Have Regulator for Every HVAC Pro
It might seem a bit pricey at first, but this regulator is absolutely worth it — much more convenient compared to a standard one: 1. No special wrench needed — easy to tighten and install by hand. 2. Safety feature — if you forget to close the tank valve but the regulator is set to OFF, no gas will come out. 3. Compact size — much smaller than regular regulators, making it easier to transport when you have lots of other equipment. 4. Durable gauge — clearly shows the remaining gas and is hard to break during transport. 5. Purge mode available — perfect for welding when you need quick and accurate purging. Highly recommend it! Great convenience, safety, and build quality. ... show more
Reviewed in the United States on June 9, 2025 Reviewed in the United States on June 9, 2025 by Andrei Golubev

  • Great product
Works great!! Will buy more products from this seller
Reviewed in the United States on March 4, 2026 by Luis pelaez

  • Hvac
Excellent
Reviewed in the United States on May 19, 2026 by Mr.B

  • Good for DIYer, maybe less so for pro
Comparatively this is an affordable unit. How ever mine is exactly accurate, but for my needs it's close enough. Using to purge lines to braze. It does what I need and didn't cost an arm or a leg. It's brass so it didn't leak, and the pressure was fine although a little off on the gauge. It fit my tank well and is pretty solidly built. ... show more
Reviewed in the United States on October 16, 2025 by Kevin Limparis

  • Bad preset pressures on the gauge.
On the exterior looks good but the preset pressures on the gauge were wrong, specially the test preset pressure did not raised the pressure in the system pass 0 psi. Apparently, the preset pressure on the gauge was set to low. Probably bad quality control at the factory. I return the gauges after the first time use. Waste of time and money. ... show more
Reviewed in the United States on August 12, 2025 by Romancing the car

  • great quality and incredible for the proce
works as good as ones 4x this much
Reviewed in the United States on March 29, 2026 by Dirk mcdonald

  • Works as described.
Easy to use. Settings for braze, purge ,test are set correctly. Have used it 8 times so far and all is good. Size is small and takes up less room than a traditional nitrogen gauge.
Reviewed in the United States on August 28, 2025 by Daniel

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...