
Itron-Actaris B31R-1 1/4 Regulator
The Itron-Actaris B31R-1 1/4 Regulator is a job-ready solution for commercial gas pressure regulation, specifically engineered for high-demand systems like light industrial boilers and large-scale furnaces. Featuring a 1-1/4 inch NPT inlet and a 1/2 inch orifice, this unit is built to manage significant flow capacities while maintaining a stable outlet pressure. The internal gray spring provides a precise 4-9 inch w.c. set point range, making it ideal for systems requiring low-pressure delivery with tight tolerances. This B31R gas regulator includes a 1-inch internal relief valve (IRV), which is critical for protecting downstream equipment from overpressure scenarios without requiring a separate relief header. The large 27-square-inch diaphragm area ensures a high lever ratio for fast response times, effectively mitigating shock during sudden on/off load cycles. When installing, ensure the stainless steel vent screen is positioned correctly to prevent moisture ingress, particularly in outdoor HVACR gas line components.
- Internal Relief Valve (IRV): High-capacity 1" IRV provides built-in overpressure protection for downstream natural gas systems.
- Precision Control: The gray adjustment spring allows for fine-tuned pressure settings between 4" and 9" w.c. to meet specific appliance requirements.
- Durable Construction: Heavy-duty cast iron valve body and Buna-N valve seats ensure long-term performance in varied temperatures.
- Quick Response: Effectively handles rapid on/off cycles, preventing pressure spikes and protecting commercial boiler gas valves.
- Field Serviceable: Features a field-interchangeable orifice and adjustment springs for simplified maintenance and system updates.
Common Questions
What is the maximum inlet pressure for this Actaris B31R model?
The maximum operating inlet pressure depends on the 1/2" orifice size, but the B31 series generally supports up to 125 PSIG depending on configuration; however, always check local codes for the specific gas regulator capacity required for your piping run.
Can the gray spring be swapped for a higher pressure range?
Yes, the Itron B31 adjustment springs are interchangeable. If your application requires more than 9" w.c., you can swap the gray spring for a blue or silver spring designed for the B31 series, provided it is not a "High Pressure" (HP) specific body.
Is this regulator suitable for propane applications?
Yes, the B31R is compatible with natural gas, propane, and air. When using propane, you must apply the correct specific gravity correction factor to the capacity tables to ensure proper gas regulator sizing.
This item is not eligible for free shipping.
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.
Original: $380.63
-65%$380.63
$133.22Itron-Actaris B31R-1 1/4 Regulator
The Itron-Actaris B31R-1 1/4 Regulator is a job-ready solution for commercial gas pressure regulation, specifically engineered for high-demand systems like light industrial boilers and large-scale furnaces. Featuring a 1-1/4 inch NPT inlet and a 1/2 inch orifice, this unit is built to manage significant flow capacities while maintaining a stable outlet pressure. The internal gray spring provides a precise 4-9 inch w.c. set point range, making it ideal for systems requiring low-pressure delivery with tight tolerances. This B31R gas regulator includes a 1-inch internal relief valve (IRV), which is critical for protecting downstream equipment from overpressure scenarios without requiring a separate relief header. The large 27-square-inch diaphragm area ensures a high lever ratio for fast response times, effectively mitigating shock during sudden on/off load cycles. When installing, ensure the stainless steel vent screen is positioned correctly to prevent moisture ingress, particularly in outdoor HVACR gas line components.
- Internal Relief Valve (IRV): High-capacity 1" IRV provides built-in overpressure protection for downstream natural gas systems.
- Precision Control: The gray adjustment spring allows for fine-tuned pressure settings between 4" and 9" w.c. to meet specific appliance requirements.
- Durable Construction: Heavy-duty cast iron valve body and Buna-N valve seats ensure long-term performance in varied temperatures.
- Quick Response: Effectively handles rapid on/off cycles, preventing pressure spikes and protecting commercial boiler gas valves.
- Field Serviceable: Features a field-interchangeable orifice and adjustment springs for simplified maintenance and system updates.
Common Questions
What is the maximum inlet pressure for this Actaris B31R model?
The maximum operating inlet pressure depends on the 1/2" orifice size, but the B31 series generally supports up to 125 PSIG depending on configuration; however, always check local codes for the specific gas regulator capacity required for your piping run.
Can the gray spring be swapped for a higher pressure range?
Yes, the Itron B31 adjustment springs are interchangeable. If your application requires more than 9" w.c., you can swap the gray spring for a blue or silver spring designed for the B31 series, provided it is not a "High Pressure" (HP) specific body.
Is this regulator suitable for propane applications?
Yes, the B31R is compatible with natural gas, propane, and air. When using propane, you must apply the correct specific gravity correction factor to the capacity tables to ensure proper gas regulator sizing.
This item is not eligible for free shipping.
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.
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Description
The Itron-Actaris B31R-1 1/4 Regulator is a job-ready solution for commercial gas pressure regulation, specifically engineered for high-demand systems like light industrial boilers and large-scale furnaces. Featuring a 1-1/4 inch NPT inlet and a 1/2 inch orifice, this unit is built to manage significant flow capacities while maintaining a stable outlet pressure. The internal gray spring provides a precise 4-9 inch w.c. set point range, making it ideal for systems requiring low-pressure delivery with tight tolerances. This B31R gas regulator includes a 1-inch internal relief valve (IRV), which is critical for protecting downstream equipment from overpressure scenarios without requiring a separate relief header. The large 27-square-inch diaphragm area ensures a high lever ratio for fast response times, effectively mitigating shock during sudden on/off load cycles. When installing, ensure the stainless steel vent screen is positioned correctly to prevent moisture ingress, particularly in outdoor HVACR gas line components.
- Internal Relief Valve (IRV): High-capacity 1" IRV provides built-in overpressure protection for downstream natural gas systems.
- Precision Control: The gray adjustment spring allows for fine-tuned pressure settings between 4" and 9" w.c. to meet specific appliance requirements.
- Durable Construction: Heavy-duty cast iron valve body and Buna-N valve seats ensure long-term performance in varied temperatures.
- Quick Response: Effectively handles rapid on/off cycles, preventing pressure spikes and protecting commercial boiler gas valves.
- Field Serviceable: Features a field-interchangeable orifice and adjustment springs for simplified maintenance and system updates.
Common Questions
What is the maximum inlet pressure for this Actaris B31R model?
The maximum operating inlet pressure depends on the 1/2" orifice size, but the B31 series generally supports up to 125 PSIG depending on configuration; however, always check local codes for the specific gas regulator capacity required for your piping run.
Can the gray spring be swapped for a higher pressure range?
Yes, the Itron B31 adjustment springs are interchangeable. If your application requires more than 9" w.c., you can swap the gray spring for a blue or silver spring designed for the B31 series, provided it is not a "High Pressure" (HP) specific body.
Is this regulator suitable for propane applications?
Yes, the B31R is compatible with natural gas, propane, and air. When using propane, you must apply the correct specific gravity correction factor to the capacity tables to ensure proper gas regulator sizing.
This item is not eligible for free shipping.
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.












