Sensus 139-16-021-01 Black Spring

The Sensus 139-16-021-01 Black Spring is a critical calibration component engineered specifically for Sensus Model 143 gas service regulators. In field applications, this regulator adjustment spring provides the necessary tension to maintain a stable 2-6 PSI outlet pressure range, ensuring the diaphragm responds accurately to downstream demand. For technicians performing routine maintenance or pressure conversions, using the correct color-coded spring is essential for identifying the specific Sensus 143 spring range without dismantling the unit. This OEM replacement part is built to resist fatigue in high-cycle environments, preventing set-point drift and maintaining the lock-up characteristics of the domestic gas regulator. Whether you are servicing residential or light commercial sets, utilizing the 139-16-021-01 black spring ensures the gas pressure regulator stays within its designated performance curve for reliable delivery and maximum equipment uptime.

Technical Performance Benefits

• Precise Pressure Control: Specifically calibrated for a 2-6 PSI pressure range to ensure accurate regulation in Sensus 143-80-2 and similar configurations.
• Rapid Identification: The black spring color coding allows for immediate visual verification of spring rate and pressure capacity during field inspections.
• Industrial Durability: Engineered to hold constant tension over extended operational periods, preventing common drop-off issues in natural gas service regulators.
• Exact Compatibility: Designed for an immediate fit within the Sensus 143 series spring housing, eliminating the need for field modifications.

Common Questions

What is the specific outlet pressure range for the Sensus black spring?
The Sensus 139-16-021-01 is designed for an outlet pressure range of 2 PSI to 6 PSI when installed in compatible 143 series regulator bodies.

Can this black spring be used in other Sensus regulator models?
This part is specifically engineered for the Model 143 gas regulator. Always verify the manufacturer's orifice and spring chart for your specific body size and inlet pressure before installation.

How do I identify this spring in the field?
This spring is identifiable by its black finish, which signifies its 2-6 PSI rating according to the standard Sensus spring color chart for service regulators.

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.