Description
The Maxitrol M420B‑1/2 modulating valve is engineered for responsive, stable, and precise control of gas flow in heating and burner systems. As part of the Selectra modulating valve lineup, this valve allows smooth, non‑fluctuating adjustments in outlet pressure in direct response to the control signal — without the need for external motors or mechanical butterfly valves. It’s ideally suited for use in Series 94 and A200 control systems, delivering dependable performance in both residential and light commercial heating applications.
Specifications:
- Size: 1/2″
- Used With: Series A200 System, Series 94 System
