Riello
Riello Diffuser Disc 3008559
Riello diffuser disc, part number 3008559, for Gulliver RG5D and RG5DF burners.
At a glance
- Part type: diffuser disc
- Also known as 3206401
£45.00
£37.50 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The diffuser disc is a Riello burner component that sits in the combustion head assembly and shapes the air pattern around the fuel spray. It is used on Riello Gulliver RG5D and RG5DF pressure-jet burners. Its condition directly affects flame stability and combustion quality.
Signs this part needs replacing
- Flame shape is distorted, ragged or visibly unstable at the combustion head
- Soot deposits building up on the head or in the combustion chamber
- Combustion analyser readings drifting outside the expected range for the burner
- Visible cracking, erosion, distortion or heat damage on the disc face
- The disc no longer seats correctly in the head assembly
Before you order
- Confirm the burner model and code against the fitment list above
- Check the type number on the burner data plate reads 398-T1
- Compare the existing disc with the part number 3008559 before fitting
- Inspect the surrounding combustion head components for related wear
Compliance
| Alternative numbers | 3206401 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| RIELLO BURNER SPARES | — | — | — | |
| RIELLO GULLIVER RG5D - CODE 3739820 - TYPE 398-T1 | — | — | — | |
| RIELLO GULLIVER RG5D - CODE 3739850 - TYPE 398-T1 | — | — | — | |
| RIELLO GULLIVER RG5DF - CODE 3739870 - TYPE 398-T1 | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
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