Sensus 143-16-021-03 Red Spring As a veteran-grade replacement part

As a veteran-grade replacement part

we recommend having a Sporlan 791001 replacement O-ring kit on hand for comprehensive valve maintenance

This is a shunt

Key Benefits Universal Compatibility: Replaces common industry standard relays including RBM Type 84 and various 24V fan relays for streamlined inventory

Using a multimeter set to continuity

Sensus 143-16-021-03 Red Spring As a veteran-grade replacement partThe Sensus 143 16 021 03 Red Spring is a critical calibration component engineered for high capacity gas pressure regulators, specifically cross compatible with the Sensus 243 12 and Sensus 121 series industrial regulators. This heavy duty regulator spring is essential for technicians performing routine HVACR maintenance or field repairs to ensure precise outlet pressure settings within specified tolerances. When installed in the standard main spring