Biasi
Biasi Gas Restrictor Natural Gas BI1563501
Natural gas restrictor BI1563501 for Biasi Advance condensing and system boilers.
At a glance
- Also known as 1651754
£17.44
£14.53 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 GAS RESTRICTOR (NATURAL GAS) is a Biasi component supplied under part number BI1563501. It is fitted within the gas train of Biasi Advance appliances to set the gas throughput for natural gas operation. The restrictor forms part of the boiler's combustion setup and is matched to the appliance it is installed in.
Signs this part needs replacing
- Gas rate readings outside the figures stated in the appliance documentation
- Inlet working pressure correct but burner pressure failing to settle at the specified value
- Combustion analysis results outside the appliance's stated tolerances
- Restrictor found blocked, deformed or damaged during a service or gas train inspection
- Restrictor missing or incorrect for the appliance during commissioning checks
Before you order
- Confirm the appliance model and gas type against the fitment list above
- Check the existing restrictor marking or part number against BI1563501 where visible
- Verify the boiler is set up for natural gas, as LPG variants use different gas train components
- Refer to the appliance manufacturer's instructions for the correct restrictor for the model and gas category
Compliance
| Alternative numbers | 1651754 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BIASI ADVANCE 24 OV | 41-583-37 | 41-583-37 | — | — |
| BIASI ADVANCE 24 OV LPG | 41-583-37 | 41-583-37 | — | — |
| BIASI ADVANCE 25S | 41-583-33 | 41-583-33 | — | — |
| BIASI ADVANCE 25S LPG | 41-583-33 | 41-583-33 | — | — |
| BIASI ADVANCE 30C | 47-583-44 | 47-583-44 | — | — |
| BIASI ADVANCE 30C LPG | 47-583-44 | 47-583-44 | — | — |
| BIASI ADVANCE 30S | 41-583-34 | 41-583-34 | — | — |
| BIASI ADVANCE 30S LPG | 41-583-34 | 41-583-34 | — | — |
| BIASI ADVANCE 35C | 47-583-45 | 47-583-45 | — | — |
| BIASI ADVANCE 35C LPG | 47-583-45 | 47-583-45 | — | — |
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.
BIASI appliance manual — ADVANCE 24 OV (GC 41-583-37), ADVANCE 24 OV LPG (GC 41-583-37)
manualmanualBIASI appliance manual — ADVANCE 25S (GC 41-583-33), ADVANCE 25S LPG (GC 41-583-33), ADVANCE 30S (GC 41-583-34), ADVANCE 30S LPG (GC 41-583-34)
manualmanualBIASI appliance manual — ADVANCE 30C (GC 47-583-44), ADVANCE 30C LPG (GC 47-583-44), ADVANCE 35C (GC 47-583-45), ADVANCE 35C LPG (GC 47-583-45)
manualNo technical questions yet for this part.
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