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Graco 120584 Air Regulator 1/4" NPT

The Graco 120584 Air Regulator ensures precise pressure control for airless sprayers, providing consistent spray performance and protecting your equipment.

  • Connection: 1/4" NPT inlet/outlet
  • Pressure Range: 0–250 psi adjustment
  • Max Inlet Pressure: 3000 psi
  • Compatible Machines: GMAX 390, GMAX 395, Mark V, Mark VII, ProX17, ProX19

Retail Price: $67.25
You save: $5.1 (7.58%)
Our Price: $62.15
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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.

Feature Specification
Weight 0.39 lbs
Dimensions 2.95 × 2.6 × 2.8 in
Connection 1/4" NPT inlet/outlet
Temperature Rating -20°F to 250°F
Flow Rate Up to 12 scfm @ 100 psi

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

The regulator supports inlet pressures up to 3000 psi with stable output.

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

Regularly check the adjustment knob, flush the poppet chamber, and apply light lubrication to O-rings to ensure longevity.

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