Johnson Controls R-131-2 Valve

The Johnson Controls R-131-2 Air Pressure Reducing Valve is a professional-grade pneumatic component designed for high-precision regulation in commercial and industrial HVACR systems. Built for heavy-duty service, this 1/4 inch NPT air regulator handles an inlet pressure range of 0 to 200 psig, delivering a stable outlet pressure from 0 to 150 psig. As a precision air pressure reducing valve, it is engineered to maintain a consistent setpoint with a sensitivity of +/- 0.1 psi, ensuring that downstream pneumatic controllers and actuators receive a steady supply regardless of primary line fluctuations. The JCI R-131-2 features a rugged housing with a 1/4 inch gauge port for real-time monitoring and supports both inline mounting or panel installation with an optional bracket. Whether utilized in complex multi-zone pneumatic logic or as a standalone control pressure valve, this unit provides the reliability required by veteran field technicians to prevent system drift and protect sensitive instrumentation from over-pressurization.

• High Precision Regulation: Maintains output pressure within +/- 0.1 psi, critical for sensitive pneumatic calibration.
• Industrial Pressure Range: Accommodates high-pressure primary lines up to 200 psig with a broad 0-150 psig adjustable output.
• Versatile Installation: Dual 1/4" auxiliary ports allow for convenient gauge connection and flexible piping configurations.
• Field Durability: Robust construction designed for long-term service in demanding mechanical rooms.
• Secure Adjustments: Features a lockable adjusting knob to prevent unauthorized or accidental setpoint changes.

How do I adjust the outlet pressure on the R-131-2?
The outlet pressure is set by turning the hand-wheel or adjusting knob on top of the valve. For accuracy, always monitor the pressure via a gauge installed in one of the 1/4" NPT auxiliary ports during the adjustment process.

Can this valve be used for liquids or steam?
No, this is a precision pneumatic valve specifically designed for clean, dry compressed air. Using it with secondary fluids or steam will damage the internal diaphragm and seat assembly.

What is the purpose of the two auxiliary ports?
These ports are provided for the installation of an output pressure gauge. Having two ports offers flexibility in orientation, allowing the technician to mount the gauge where it is most visible regardless of how the main body is piped.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.