Sensus 143-62-021-16 Blue Spring

The Sensus 143-62-021-16 Blue Spring is a critical calibration component engineered for the Sensus 143-80 series domestic service regulators. Designed for veteran techs who need precise pressure management, this blue loading spring provides a stable outlet pressure range of 5.0" to 8.5" w.c. (water column). Its high-tensile steel construction ensures repeatable performance across residential and light commercial meter sets, maintaining a consistent set point even during fluctuating inlet pressures.

When performing regulator spring swaps on the 143-80-1 or 143-80-2 models, this replacement spring is the standard for mid-range low-pressure applications. Its specific compression rate is optimized to reduce outlet pressure droop, ensuring the connected appliances receive a steady gas flow. For contractors managing natural gas systems or propane vapor services, the 143-62-021-16 is the professional choice for achieving a precise 7" w.c. nominal delivery pressure.

• Precise Pressure Control: Engineered for a specific 5.0" to 8.5" w.c. range to meet strict appliance input requirements.
• OEM Compatibility: Drops directly into the Sensus 143-80 housing without modification to the adjustment ferrule.
• Enhanced Stability: Maintains consistent dead-end lockup and minimizes vibration in the diaphragm assembly.
• Field-Proven Durability: Resilient coating protects against spring fatigue in various environmental conditions.

• What is the standard set point for this blue spring? Most technicians use this spring to hit a nominal 7" w.c. delivery pressure, though it is adjustable across its 5.0" to 8.5" w.c. range.
• Is this compatible with the 143-80-2HP model? While compatible with the 143-80 series, high-pressure models (HP) often require specific orifice and spring combinations; always verify your orifice size and desired outlet pressure before installation.
• Can I swap this with a green spring? Swapping to a green spring (143-62-021-17) will increase your range to 6.0"–14.0" w.c., which is typically only required for specific commercial applications.

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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.