Graco 104266 Air Regulator 1/2(f) inlet/outlet 0-250 psi (0-17 bar) zinc plated

Product Details – GRACO 104266 Air Regulator

This is the genuine OEM pressure regulator from Graco, model number 104266, designed with a ½″ (f) inlet/outlet, zinc-plated body, and an adjustment range of 0-250 psi (0-17 bar). It features multiple outlets to allow connection of gauges or ball valves, delivering precise control of air pressure for process or spray equipment. :contentReference[oaicite:0]{index=0}

Key Specifications

Compatible Machines

The following list includes known Graco machines where this regulator has been identified as a compatible part: :contentReference[oaicite:5]{index=5}

• 231-133 (Series A) Pneumatic Cart Mount Pump
• 231-134 (Series A) Pneumatic Cart Mount Pump
• 231-135 (Series A) Pneumatic Cart Mount Pump
• 231-136 (Series A) Pneumatic Cart Mount Pump
• 231-137 (Series A) Pneumatic Cart Mount Pump
• 231-145 (Series A) Pneumatic Cart Mount Pump
• 231-146 (Series A) Pneumatic Cart Mount Pump
• 231-147 (Series A) Pneumatic Cart Mount Pump
• 231-170 (Series A) Pneumatic Cart Mounted Pump
• 231-171 (Series A) Pneumatic Cart Mounted Pump
• 231-172 (Series A) Pneumatic Cart Mounted Pump
• 231-173 (Series A) Pneumatic Cart Mounted Pump

Why Choose This Regulator?

Choosing the 104266 ensures you get a regulator that is built for robustness in industrial or finishing systems. With its zinc-plated body, ½″ NPT ports, and the ability to handle up to 250 psi regulated output, it’s ideal for spray, lubrication & fluid handling systems. :contentReference[oaicite:6]{index=6}

Installation & Maintenance Tips

• Ensure the regulator is installed upstream of the control line and that inlet air is clean and dry to protect internal components.
• Use thread sealant compatible with air systems and ensure proper torque to avoid leaks at the ½″ NPT connections.
• After installation, adjust the output pressure slowly while monitoring any connected gauges or systems.
• Periodically check for wear, corrosion or sticking—especially in high-cycle or abrasive environments.
• If the regulator fails to hold pressure or fluctuates, inspect for internal diaphragm damage or contamination.

Frequently Asked Questions

For OEM-quality performance and reliable pressure control, the GRACO 104266 Air Regulator is a dependable choice for your pneumatic cart-mounted pumps and related systems.