Riello RX Premix Series
Riello RX 500 S/P Premix Burner
The Riello RX 500 S/P is a premix gas burner built for low polluting emissions and high modulating turn-down ratios (typically 7:1). Riello's brushless motor controls fan speed and gas proportional valves for precise power output, and the combustion head uses a patented seamless knitted-wire metallic fibre.
Specifications
| Model | RX 500 S/P |
|---|---|
| Technology | Premix combustion (gas + air mixed before the head) |
| Turn-down ratio | Typically 7:1 (high modulating) |
| Motor | Riello brushless, controls fan speed + gas proportional valves |
| Combustion head | Patented seamless knitted-wire metallic fibre (up to 500 kW) |
| Operation | Two-stage progressive or modulating |
| Configuration | With or without cover; standard or airtight |
| Control | Open, versatile electronic control system |
| Emissions | Low polluting emissions, high combustion efficiency |
Why buyers choose it
- Riello premix technology cuts polluting emissions while keeping a high modulating turn-down ratio for efficient part-load running.
- On versions up to 250 kW, gas and air mix inside the aspiration circuit for an even air-gas mixture and strong seasonal efficiency.
- A brushless Riello motor drives fan speed and gas proportional valves for accurate, repeatable power control.
- The head up to 500 kW is built from patented seamless knitted-wire metallic fibre — no welded seam, so no thermal-stress cracking.
- Offered with or without cover, in standard or airtight build, backed by an open and adaptable electronic control platform.
Applications
The RX series suits food, chemical, paper making, textile, paint and petroleum plants that need low-emission, tightly controlled gas firing.
Its high turn-down ratio (typically 7:1) keeps combustion stable at part load, saving fuel across variable-demand processes.
Tell us your gas supply and required output and we specify the RX model and the airtight or standard configuration.
Buyer Questions
Riello RX 500 S/P Premix Burner FAQs
What is premix combustion in the Riello RX 500 S/P?
Premix means gas and air are mixed before reaching the combustion head. On models up to 250 kW the mixing happens in the aspiration circuit, giving a perfect air-gas mixture, low emissions and high efficiency.
What turn-down ratio does the RX 500 S/P offer?
The RX series typically reaches a 7:1 turn-down ratio, so it holds stable, efficient combustion across a wide part-load range.
Is the RX 500 S/P modulating or two-stage?
It can run two-stage progressive or modulating, and is available with or without cover, in standard or airtight configuration.
How is power output controlled?
A Riello-designed brushless motor controls fan speed and the gas proportional valves, delivering precise power output control.
Documentation
Riello RX 500 S/P Premix Burner Downloads
Request a quote for RX 500 S/P
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