Sensus 122-12-2 Regulator

The Sensus 122-12-2 Gas Pressure Regulator is a high-capacity gas regulator engineered for precision in industrial and commercial combustion systems. Featuring 2-inch NPT connections and a rugged cast iron body, this unit facilitates substantial flow volumes for natural gas and propane (LP) applications. Designed for a maximum inlet pressure of 15 PSIG, it utilizes an internal sensing mechanism to provide technical accuracy across fluctuating load conditions. The 6" to 14" WC outlet pressure range is balanced by a 1-inch NPT screened vent to protect the diaphragm from environmental debris. Contractors frequently specify the 122-12-2 for commercial HVAC gas pressure needs, including boiler manifolds, large furnaces, and dry cleaning equipment. This model provides positive dead-end lockup, preventing downstream pressure creep during no-demand cycles. Whether servicing legacy Rockwell or Equimeter systems or installing new high-demand lines, this 2-inch gas regulator ensures stable manifold pressure and reliable performance on the job site.

Key Technical Benefits:

• High-Flow Capacity: Optimized for large-scale commercial appliances and industrial process heating.
• Broad Compatibility: Suitable for multi-gas environments, including air and other non-corrosive dry gases.
• Field Reliability: Heavy-duty construction ensures durability in high-cycle mechanical room environments.
• Safety Lockup: Features internal valve seats designed for tight shut-off and pressure containment.
• Versatile Mounting: Standard NPT threaded connections for straightforward integration into existing pipe runs.

Common Technical Questions

What is the maximum flow capacity for the Sensus 122-12-2?
Flow rates depend on the pressure drop across the regulator; however, the 2-inch Model 122 is capable of handling up to several thousand SCFH. Consult the specific flow capacity charts for your inlet and outlet pressure requirements.

Can I change the spring to achieve a different outlet pressure?
Yes, the green spring provided covers the 6 to 14 inch water column range. For different pressure requirements, compatible Sensus springs can be swapped to modify the set point without replacing the entire regulator body.

Is this regulator suitable for outdoor installation?
While the cast iron body is robust, the 1-inch NPT vent must be piped away or oriented downward with a weather-resistant vent cap to prevent moisture ingress into the diaphragm chamber.

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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.