Sensus 071-03409-004 Sliver Spring

The Sensus 071-03409-004 Silver Spring is a critical field-service component engineered for the Sensus 496 gas pressure regulator. Designed to maintain a stable 3.5" to 10.5" WC outlet pressure range, this silver-coded spring allows for precise calibration in domestic service and light commercial applications. As a veteran technician knows, the spring rate is essential for balanced diaphragm movement and consistent lock-up pressure.

This authentic Sensus replacement part is built for longevity and environmental resistance, ensuring the Model 496 maintains its performance standards across natural gas, LPG, and propane systems. Utilizing original equipment manufacturer (OEM) specifications prevents the calibration drift often associated with inferior aftermarket springs, keeping your gas pressure regulation within tight tolerances for optimized burner efficiency and system safety.

Key Benefits

• Specific Range: Calibrated for 3.5 to 10.5 inches water column, providing the most common adjustment range for standard residential distribution.
• OEM Precision: Guaranteed compatibility with the Sensus 496 regulator, ensuring the adjustment ferrule and diaphragm assembly function without mechanical interference.
• Versatile Media: Suitable for multi-gas applications including clean, non-corrosive gases like air, propane, and nitrogen.
• Field Durability: Constructed from high-tensile materials to withstand high cycle rates without losing tension or inducing "hum" in the regulator line.

Common Questions

Can I swap this with a Green or Blue spring?
Springs are color-coded based on their tension and pressure range. Swapping to a green (6–14" WC) or blue (6–8" WC) spring is only recommended if the specific downstream application requires a manual set point outside of the 3.5–10.5" WC silver range. Always verify the orifice size and inlet pressure before changing spring colors.

Does this spring fit the older Sensus 043-B models?
While the Sensus 496 is the direct replacement for the legacy 043-B, spring configurations may vary. This 071-03409-004 part is specifically validated for the 496 series loading spring housing.

Which direction do I turn to increase the outlet pressure?
Remove the spring cap and turn the adjustment ferrule clockwise to compress the spring and increase pressure. Ensure gas flow is active during calibration for an accurate reading.

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.