YESWELDER Nitrogen Regulator with Hose

1. Introduction

The YESWELDER Nitrogen Regulator with Hose (Model WX-YQD-CGA580) is designed for precise control of nitrogen gas pressure in various applications. This regulator features durable brass construction, clear pressure gauges, and a convenient T-shaped adjustment handle. It is suitable for tasks such as HVAC purging, inertization, pressure testing, leakage testing, brazing, and soldering.

Image: The YESWELDER Nitrogen Regulator with Hose, showing its brass body, two gauges, and yellow hose.

2. Safety Information

Always prioritize safety when working with pressurized gas. Read and understand all instructions before operation. Ensure proper ventilation and wear appropriate personal protective equipment (PPE).

• Do not install a T-wrench before connecting the gas meter to the cylinder.
• Ensure all connections are tight to prevent leaks. Use appropriate tools for tightening.
• Slowly open the valve of the gas cylinder after connecting the regulator.
• For safety, when the pressure value on the low-pressure gauge reaches or approaches 450 PSI, the relief valve of the gas meter may open. This is a normal function to release excess pressure and may sound like a leak, but it is not a malfunction.
• Never exceed the maximum rated pressure of the regulator or connected equipment.

Image: A close-up of the low-pressure gauge highlighting the 450 PSI safety relief point.

3. Package Contents

Verify that all items are present and undamaged upon opening the package:

• YESWELDER Nitrogen Regulator (Model WX-YQD-CGA580)
• 6.56 feet (2 meter) Hose with 1/4" Male Flare Fitting

Image: The included 6.56 feet yellow hose with 1/4" male flare fittings.

4. Setup Instructions

Follow these steps to properly set up your nitrogen regulator:

1. Connect Regulator to Nitrogen Cylinder: Ensure the nitrogen cylinder valve is closed. Connect the CGA580 inlet connection of the regulator to the nitrogen cylinder valve. Hand-tighten first, then use an appropriate wrench to secure the connection firmly. Do not overtighten.

Image: Close-up of the CGA580 inlet connection on the regulator.
2. Connect Hose: Attach the 1/4" male flare fitting of the hose to the outlet of the regulator. Hand-tighten, then use a wrench to ensure a secure, leak-free connection.
3. Install T-shaped Adjustment Handle: Insert the T-shaped handle into the adjustment screw on the regulator. This handle is used to control the output pressure.


Image: The T-shaped adjustment handle being inserted into the regulator.

4. Open Cylinder Valve: Slowly open the nitrogen cylinder valve. The high-pressure gauge (0-4000 PSI) will indicate the pressure remaining in the cylinder. The low-pressure gauge (0-600 PSI) should initially read zero if the adjustment handle is fully disengaged.

5. Operating Instructions

To adjust and use the nitrogen regulator:

1. Set Output Pressure: Turn the T-shaped adjustment handle clockwise to increase the output pressure, as indicated on the low-pressure gauge (0-600 PSI). Turn counter-clockwise to decrease the pressure. Adjust to the desired working pressure for your application.


Image: Close-up of the T-shaped adjustment handle on the regulator, indicating its function for manual pressure adjustment.

2. Monitor Pressure: Continuously monitor both the high-pressure gauge (cylinder pressure) and the low-pressure gauge (output pressure) during operation.
3. Shut Down: When finished, first close the nitrogen cylinder valve. Then, release any remaining pressure in the regulator and hose by turning the T-shaped adjustment handle counter-clockwise until the low-pressure gauge reads zero.

6. Maintenance

Regular maintenance ensures the longevity and safe operation of your regulator:

• Inspect all connections and the hose for wear, damage, or leaks before each use.
• Keep the regulator clean and free from oil, grease, or other contaminants.
• Store the regulator in a dry, clean environment when not in use.
• Do not attempt to repair the regulator yourself. Contact qualified personnel for service.

7. Troubleshooting

If you encounter issues with your nitrogen regulator, consider the following:

• No Pressure Reading: Ensure the cylinder valve is fully open and the regulator's adjustment handle is turned clockwise to engage pressure. Check for blockages in the hose or fittings.
• Pressure Fluctuations: Verify that the cylinder has sufficient gas. Ensure all connections are tight and there are no leaks.
• Gas Leakage: Check all threaded connections for tightness. Apply a small amount of pipe thread tape to the CGA580 inlet connection if a leak is detected there. Listen for hissing sounds or use a leak detection solution (e.g., soapy water) on connections.
• Inaccurate Gauge Readings: If you suspect a gauge is inaccurate, compare its reading with a known calibrated gauge. If a gauge is faulty, it should be replaced by a qualified technician.

8. Specifications

9. Warranty and Support

This YESWELDER Nitrogen Regulator comes with a 1-Year Warranty from the date of purchase, covering manufacturing defects. For technical assistance, troubleshooting, or warranty claims, please contact YESWELDER customer support. Our 24/7 Customer Support team is available to assist you.

For further information, visit the official YESWELDER website or refer to your purchase documentation.