2-way normally open globe valve designed for high-performance fluid control in commercial HVACR systems

Robust Construction: The extruded aluminum frame resists corrosion and remains lightweight for easier overhead handling during HVAC zoning installs

a significant deviation indicates it is time for a replacement

Comprehensive Maintenance: Replaces all wear-prone internal elastomers and moving parts effectively

This high-efficiency motor is sourced directly from the manufacturer

Lochinvar & A.O. Smith 100110901 Window Observation 326070-701 2-way normally open globe valveUpgrade your system monitoring with the Lochinvar & A. O. Smith 100110901 Window Observation assembly. This genuine OEM sight glass replacement is a critical component for service technicians performing routine combustion analysis or checking burner flame quality in high efficiency Lochinvar boilers and A. O. Smith water heaters. Designed to withstand the thermal stress of sealed combustion chambers, this durable observation port ensures an airtight