Shopping Cart

Your cart is empty.

Your cart is empty.

VN-500 Nitrogen Purging Regulator Control Valve Flow Meter with 500 PSI Test Pressure

4.4 (4) Write Review
Free shipping on orders over $29.99

$76.99

$ 30 .99 $30.99

In Stock

About this item

  • Two-in-one design: vn500 nitrogen purging control valve is a design that combines a regulator and a flow meter, which can control both the flow rate and pressure of nitrogen.
  • Three functions: purge (PRG), braze (BRZ) and test (TST) pipelines, with 500 PSI Test Pressure.
  • Main purpose: Reduce impurities in the pipeline through nitrogen purge, which can make the system run stably.
  • Reliable quality: The brass valve body design is suitable for harsh environments, enhancing usability and meeting long-term use needs.
  • Easy installation: just tighten the interface by hand.


Product Description

VN-500 Nitrogen Purging Regulating Control Valve
VN-500 Nitrogen Purging Regulating Control Valve

VN-500 Nitrogen Purging Regulating Control Valve

Inlet Cylinder Pressure Gauge

VN-500 Nitrogen Purging Regulating Control Valve

RUGGED SOLID BRASS BODY

VN-500 Nitrogen Purging Regulating Control Valve

Finger-tight connection

VN-500 Nitrogen Purging Regulating Control Valve

500 PSIG

VN-500 Nitrogen Purging Regulating Control Valve

OPERATION

For general nitrogen purge applications,

Purge regulator connected directly to HVAC equipment:

1. Turn flow control knob to OFF. For safety, with outlet/use port facing away from you, very slowly turn cylinder valve (open/close) knob counterclockwise approximately % turns to open.

2. Connect non-pressurized refrigerant charge and test hoses between the regulator outlet and the service valve port on the HVAC unit

3. To purge, turn knob to PRG position.To weld, turn knob to BRZ position.To pressurize for leak testing, turn flow control knob to TST position

4. Leak check welded joints.

5. Stop nitrogen flow, turn knob to OFF position

6. Turn cylinder valve clockwise to close

7. Slowly disconnect refrigerant and charge test hoses

8. Relieve any remaining pressure in the purge regulator by setting the flow control knob to any flow position (BRZ, PRG, or TST).


James
Reviewed in the United States on March 5, 2025
This is a really nice no2 regulator, one of the best I’ve seen. No wrench required to screw it ti the bottle. The regulator body is really substantial and not weak. The adjustment valve is indexed and very clearly marked. And the gauge (which most don’t have) has a silicone protector around it. The output port is the standard 1/4 male flare like all HVAC gear. If your searching for a regulator, this is the one to have!
Ronnie Murphy
Reviewed in the United States on March 30, 2025
This is garbage! The threads don’t fit into a nitrogen tank without having to stand on a pipe wrench then if you do get it on it doesn’t release no more than about 5 psi no matter what setting you have it on.
eleana lopez
Reviewed in the United States on March 23, 2025
This nitrogen regulator can be installed without tools, just tighten it by hand, it is so convenient to install!
Scott Daniel Robbins
Reviewed in the United States on March 16, 2025
I've ordered this twice now and the threading is just slightly too big.