Graco 127330 Air Regulator 1/4" NPT

Graco 127330 Air Regulator – 1/4″ NPT Inline Regulator

The Graco 127330 air regulator is a compact, high-quality inline regulator with a ¼″ NPT port, designed to control atomizing air pressure in Graco air-assisted or air-spray systems.

Compatible Graco Machines

This regulator is commonly used on Graco finishing and air-assisted sprayers, particularly in these models:

• Graco FinishPro II 395 Air-Assisted Spray Gun
• Graco FinishPro II 595 Air-Assisted Spray Gun
• Graco Magnum ProX17 Electric Airless (when used with air-assist accessory)
• Graco Magnum ProX19 / ProX21 (air-assisted configurations)

*Note: Compatibility depends on your sprayer’s configuration; check your manual or parts list.

Key Features

• ¼″ NPT inlet connection for easy in-line mounting
• Precise control of **air pressure** for atomizing fluid
• Durable construction suitable for finishing applications
• Self-relieving design to prevent over-pressure buildup
• Compact form factor for tight installations

Technical Specifications

Why Use This Regulator?

Using the Graco 127330 helps you maintain stable atomizing air pressure, leading to smoother finishes, reduced overspray, and consistent performance — especially critical in professional spray and finishing environments.

Installation & Maintenance Tips

• Install the regulator as close as possible to your spray gun or air-assist inlet.
• Use minimal thread sealant on male NPT threads to avoid contaminating the air path.
• Periodically inspect the regulator for debris, moisture, or wear.
• Drain or blow out moisture if used with compressed air systems.

Safety & Usage Notes

Always depressurize your air supply before servicing the regulator. Avoid using the regulator beyond the recommended pressure range for your sprayer — over-pressurizing can lead to poor atomization or regulator failure.

Frequently Asked Questions