meaning it initiates the spark and gas valve energization immediately upon receiving a call for heat

ensuring tight cycle management and equipment protection

The 5651-131BX is the official superseding part number for the 5651-131

while the band/thru-bolt mounting allows for versatile installation across various cabinet configurations

featuring metal end bells for superior core protection in tough mechanical environments

Watts 0121449 Valve Els PW 17895 meaning it initiates the sparkThe Watts 0121449 is a high performance 140S 3 3 4" 150# automatic reseating temperature and pressure relief valve, engineered specifically for commercial water heater protection. As a veteran in the field, you know that domestic hot water supply tanks require precise thermal and overpressure mitigation. This unit features a robust bronze body construction with 3 4 inch NPT female inlet and outlet connections. The integrated 3 inch thermostat utilizes