Lochinvar & A.O. Smith 100110604 Thermowell 328140-751 simplifying field calibration during initial

simplifying field calibration during initial setup

Built for heavy-duty operational environments

the A81BL includes an electric wide-open (bypass) feature

Always verify the voltage and wattage requirements on the original valve nameplate before installation

you must verify the physical footprint and contact ratings are compatible with your specific wiring diagram

Lochinvar & A.O. Smith 100110604 Thermowell 328140-751 simplifying field calibration during initialThe Lochinvar & A. O. Smith 100110604 is a professional grade 3 4" brass thermowell engineered for high accuracy temperature sensing in commercial and residential hydronic systems. This OEM replacement part provides a robust pressure tight seal, allowing for the insertion and removal of temperature probes without requiring a full system drain. Constructed from corrosion resistant heavy duty brass, it is designed to withstand the thermal stresses of