Lochinvar & A.O. Smith 100281574 Valve 320788-704 These part numbers are identical

These part numbers are identical and refer to the same ASCO 1" brass solenoid valve specifications

protecting downstream piping and components from thermal and mechanical shock

ensuring consistent and accurate fluid regulation across a 0° to 250°F (-18° to 120°C) temperature range

SPDT Thermostat

For applications requiring specific stroke limits

Lochinvar & A.O. Smith 100281574 Valve 320788-704 These part numbers are identicalThe Lochinvar & A. O. Smith 100281574 is a heavy duty 2 inch natural gas valve assembly engineered for high capacity commercial water heaters and boilers. This direct replacement gas valve is critical for maintaining precise fuel to air ratios and ensuring stable combustion in high BTU systems. Designed for demanding applications, this assembly features a 181 degree thermal cutoff or calibration point to prevent overheating and ensure safe operational