Description
The Maxitrol M520B‑1/2 is a ½‑inch gas modulating valve, designed especially with low‑fire adjustment on both ends. It is engineered for use in Selectra modulation systems, including indirect fired atmospheric burner applications. This valve set helps achieve precise control of gas flow, improving temperature stability and energy efficiency.
Specifications:
- Size: 1/2″
- Used With: Series 3, Series 94 System











