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providing a reliable alternative to traditional electromechanical thermostats
Key Benefits: Precise Compatibility: Engineered specifically for the 1-1/4" Spence Type E main valve pilot connections
maintaining optimal power factor efficiency and reducing mechanical stress on the drive assembly during the duty cycle start-up phase
ensuring zero-modification installation
Resideo V4043B1018 Zone Valve 328140-751 providing a reliable alternative toThe Resideo V4043B1018 Zone Valve is a heavy duty, normally open hydronic zone valve designed for controlling flow in closed loop systems. This 120V HVAC zone valve features a 1 2" sweat connection and a high grade brass body with a stainless steel stem, ensuring durability under a 40 200 degree fluid temperature range. Designed for reliability, the V4043B1018 utilizes a spring return to open mechanism with a 3. 5 Cv flow coefficient. The internal