Graco 120584 Air Regulator 1/4" NPT

Compatible Air Regulators & Machines

The Graco 120584 Air Regulator delivers precise pressure control for airless sprayers and industrial fluid systems, ensuring consistent flow and optimal spray performance.

• GMAX 390
• GMAX 395
• Mark V
• Mark VII
• ProX17
• ProX19

Product Overview

The 120584 Air Regulator 1/4" NPT provides precise ±1 psi adjustment over a 0–250 psi range, supporting high-pressure inlet up to 3000 psi. Its compact aluminum body with stainless steel internals ensures durability and corrosion resistance in professional applications.

Installation & Maintenance

• Torque 1/4" NPT fittings to 15–18 ft-lb to avoid housing damage.
• Use upstream 5 µm filtration to protect elastomer seals.
• Mount with regulator axis vertical to prevent moisture pooling.
• Inspect adjustment knob and flush poppet chamber during maintenance.

Frequently Asked Questions