the ALPKT516-4 propane conversion kit includes all necessary orifices and gas valve regulator spring components required to adjust for the higher BTU content of LP gas

Industrial Build: Rated for 220V-300V peak performance with a 105°C thermal threshold to withstand harsh machine compartments

extending the service life of the blower motor

Ensures the sequence of operation complies with original equipment safety certifications

this valve maintains reliable pilot-operated performance in environments with high humidity or temperature fluctuations

Lochinvar & A.O. Smith 100171985 Valve 321702-401 the ALPKT516-4 propane conversion kitThe Lochinvar & A. O. Smith 100171985 Gas Valve Assembly is a critical combustion control component engineered for precise fuel regulation in high efficiency commercial water heaters and condensing boilers. Designed to maintain the stoichiometric balance required for optimal thermal efficiency, this natural gas valve utilizes a 24V or 120V solenoid actuator (depending on specific model series) to manage gas flow to the burner assembly. As an OEM