Overview of Riello RS/E FGR ultra‑low NOx gas burners, including specifications, firing rates and dimensions.
Riello presents the RS/E FGR series of monoblock and dual‑block gas burners that use Flue Gas Recirculation (FGR) to achieve ultra‑low NOx emissions (< 30 mg/kWh). The burners feature a Digital Burner Management System with independent servomotors for precise air‑fuel‑gas control, ensuring high reliability and safety across a wide modulation range.
The document lists the available models, their firing rate ranges, overall dimensions, gas connection sizes and key technical features such as high‑precision servomotors, electronic cam control, LCD operator panel and UV flame sensor. It also describes the dual‑block DB SE FGR series for larger industrial applications.
| NOx emission limit | < 30 mg/kWh |
|---|---|
| Firing rate range (RS 68/E FGR) | 68‑2000 kW |
| Maximum output reduction with FGR | ≈ 20 % |
| Pre‑heated air capability | up to 150 °C standard, 250 °C special |
The RS/E FGR burners achieve NOx emissions lower than 30 mg/Nm³.