The Sensus 143-82-021-02 regulator spring is a critical calibration component engineered for Sensus 122 and 243-8 gas pressure regulators. Also identified by the legacy part number 143-16-021-02, this Green/Black color-coded spring is designed to provide a precise outlet pressure range of 6" to 14" w.c.. For contractors performing field service or rebuilds, this spring ensures consistent lock-up performance and stable downstream pressure regulation. Built to rigorous industrial standards, it maintains its spring rate and linear tension across varying ambient temperatures, preventing hunting or pilot instability within the gas regulator assembly. Whether you are performing a Sensus residential regulator repair or optimizing a commercial gas meter set, using the correct manufacturer-specified spring is essential for maintaining the droop characteristics and flow capacity required for safe HVAC gas piping systems. This heavy-duty replacement part is the standard for technicians requiring a reliable low-pressure regulator spring replacement. Key Benefits Broad Compatibility: Fully interchangeable with part number 143-16-021-02 for simplified inventory management. Precise Pressure Control: Specifically calibrated for the 6-inch to 14-inch water column range, ideal for standard low-pressure sets. Reduced Maintenance: High-tensile construction minimizes fatigue, ensuring the regulator maintains its set point over extended service intervals. Fast Identification: Green/Black color coding allows for immediate visual verification of pressure ratings in the field. Common Questions Is the Sensus 143-82-021-02 compatible with all 243 series regulators? This spring is specifically designed for the 243-8 and 122 models. Always verify the orifice size and inlet pressure, as these factors influence the effective delivery range of the spring. What is the difference between the 143-82-021-02 and the 143-16-021-02? There is no functional difference; they are the same physical part. The 143-82-021-02 is the current manufacturing designation used by Sensus for the Green/Black 6"-14" w.c. spring. Can this spring be used for high-pressure industrial applications? No, this spring is limited to a maximum outlet pressure of 14" w.c. For applications exceeding 0.5 PSI, a higher-rated spring must be used to ensure the regulator functions within its design parameters. 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.
