Skip to product information
The Maxitrol MXT-M520.75 Selectra modulating valve is engineered for precise temperature control in commercial and industrial heating applications. Featuring a 3/4" NPT connection, 0.5 psi maximum inlet pressure, and an included vent limiter, this CSA-certified gas valve ensures reliable modulation for natural gas or propane atmospheric-burner systems at ambient temperatures from -40°F to 125°F. HVAC technicians rely on this durable modulating valve for dependable performance and accurate thermal regulation.
Maxitrol MXT-M520.75 Selectra modulating valve 3/4" NPT 0.5 psi
Specifications
| Product type | Modulating valve |
|---|---|
| Model series | M520 |
| Pipe size | 3/4 |
| Connection type | NPT |
| Max inlet pressure | 1/2 PSI |
| Outlet pressure range | Slightly above atmospheric pressure (0.1" w.c.) with bypass closed and zero voltage applied. Minimum outlet pressure is always above 0.2" w.c. Ma × imum outlet pressure is 7.0" w.c. in. W.C. |
| Gas type | Natural gas / Propane |
| CSA certified | true |
| Vent limiter | Included |
| Temperature range | -40°F to 125°F °F |