131BIG Rolair Air Compressor Pilot Unloader Valve 110-135 PSI Genuine OEM

Genuine OEM Rolair Air Compressor Pilot Unloader Valve – 1/4" MNPT x 1/4" FNPT Unloader Port, 110-135 PSI Cut-In/Out – Factory Replacement for Rolair Models 3230K30CS, 5230K30CS, 8230HK30 & More

Rolair OEM Part Number: 131BIG

Genuine OEM Rolair Pilot Unloader Valve: A direct factory replacement for units where the original valve is no longer functioning properly. Built to the same specifications as the original part, this high-quality replacement features 1/4" Male NPT threads for the tank connection and a 1/4" Female NPT threads for the unloader port connection. With a cut-in pressure of 110 PSI and a cut-out pressure of 135 PSI, it ensures smooth and efficient original compressor operation.

This pilot unloader valve is specifically designed for Rolair air compressor systems. Whether you're replacing a faulty component or conducting routine maintenance, this OEM part ensures a reliable fit and consistent performance.

Key Features:

• Genuine OEM Replacement: Direct factory replacement for Rolair compressors where the original valve has failed or is underperforming.

• 1/4" Male NPT Tank Connection Threads: Allows for secure, straightforward installation.

• 1/4" Female NPT Unloader Connection Port: Connects easily to the unloader line for consistent pressure control.

• 1/8" Throttle Control Port: Also Features a 1/8" FNPT Port for throttle control if needed. (Note: 1/8" measures about 3/8" in diameter.)

• Cut-In Pressure: 110 PSI – Activates compressor operation efficiently.

• Cut-Out Pressure: 135 PSI – Prevents overpressurization, ensuring safe performance.

• Durable Brass Construction: Engineered to handle demanding environments and long-term use.

Compatible with these models and more:

• 3230K30CS

• 5230K30CS

• 8230HK30

• 4090HK17/20

• 6590HK18/20

• 7722HK28/20

• 11GR Series

• 13GR Series

• 18GR Series

Features:

• OEM Precision: Manufactured to Rolair’s exact specs for seamless compatibility and optimal function.

• Reliable Cycling: Maintains proper cut-in and cut-out pressure (110–135 PSI) for efficient compressor cycling.

• Easy Factory Fit: Standard 1/4" Male NPT tank connection threads x 1/4" Female NPT unloader port connection simplify the installation process.

• Built to Last: High-quality brass construction ensures performance and durability over time.

Keep your Rolair air compressor running smoothly and safely with this Genuine OEM Pilot Unloader Valve. It's the ideal replacement to restore function, pressure control, and efficiency—just like the original.