Sensus 121-8-HP-1 1/2 Regulator

The Sensus 121-8-HP-1 1/2 is a robust high-pressure gas regulator engineered for demanding commercial and industrial applications, including boilers, large-scale burners, and furnaces. Featuring a 1.5-inch NPT cast iron body, this 121 series regulator provides exceptional flow capacity and fast response times, ensuring stable downstream pressure even during rapid load changes. This specific HP configuration is equipped with a cadmium spring, supporting an adjustable outlet pressure range of 3 to 6.5 PSIG with a maximum inlet pressure rating of 60 PSIG.

Designed for versatile field deployment, the Sensus 121-8-HP serves effectively in primary control or monitoring roles. It is compatible with natural gas, propane, air, and nitrogen. The balanced valve design minimizes the effect of inlet pressure variations, while the positive dead-end lockup capability prevents pressure creep during periods of zero demand. For technicians, the external sensing line and standard NPT venting simplify integration into existing piping systems, maintaining precise regulation across a wide set-point spectrum.

• Large Capacity Flow: Optimized internal geometry allows for higher SCFH throughput, often permitting the use of a smaller regulator for the same load.
• Industrial-Grade Construction: Features a durable cast iron body and cadmium-plated spring for long-term reliability in harsh mechanical rooms.
• High Precision Regulation: Fast-acting diaphragm response handles the quick-firing cycles of modern high-efficiency boilers.
• Multi-Fuel Compatibility: Suitable for natural gas, LPG, and non-corrosive industrial gases.

What is the maximum inlet pressure for the 121-8-HP?
This model is rated for a maximum inlet pressure of 60 PSIG, making it suitable for high-pressure distribution lines.

Can this regulator handle rapid-cycling burners?
Yes, the 121 series is specifically designed with a high speed of response to maintain stable pressure during sudden equipment ignition.

Does this unit require an external control line?
The HP models typically utilize external sensing to ensure the most accurate pressure control at the header, though configuration should always follow the manufacturer's piping diagram.

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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.