Biasi
Biasi Automatic Air Purger Valve BI1002111
Automatic air purger valve for Biasi gas boilers, part number BI1002111.
At a glance
- Also known as AIR-PURGER-VALVE-AAV, 1650043, N1705-C
£27.22
£22.68 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 Biasi BI1002111 is an automatic air purger valve (AAV) designed for use in Biasi gas boilers. It automatically vents trapped air from the heating system to maintain efficient operation and prevent air locks. This component is part of the boiler's internal air elimination system.
Signs this part needs replacing
- Water leaking or dripping from the valve body
- Radiators cold at the top or requiring frequent bleeding
- Boiler making gurgling or knocking noises due to trapped air
- Corrosion or scale visible around the valve
- Valve cap stuck or unable to seal properly
Before you order
- Check your boiler model against the fitment list above
- Confirm the GC number if available
- Verify the part number BI1002111 matches your existing valve
- Ensure the heating system is isolated and drained before replacement
Compliance
| GC number | E01-042 |
|---|---|
| Barcode / EAN | 8023585801437 |
| Alternative numbers | AIR-PURGER-VALVE-AAV, 1650043, N1705-C |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BIASI 24S | 47-970-10 | 47-970-10 | — | — |
| BIASI 24SR | 41-970-05 | 41-970-05 | — | — |
| BIASI 28S | 47-970-11 | 47-970-11 | — | — |
| BIASI BIASI 24S | — | — | — | |
| BIASI BIASI 24SR | — | — | — | |
| BIASI BIASI 28S | — | — | — | |
| BIASI BIASI PRISMA 24 SER | — | — | — | |
| BIASI BIASI PRISMA 24SE | — | — | — | |
| BIASI BIASI PRISMA 28SE | — | — | — | |
| BIASI BIASI SAVIO GAIA 424S | — | — | — |
Showing 10 of 24 compatible appliances.
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 — 24S (GC 47-970-10), 24SR (GC 41-970-05), 28S (GC 47-970-11)
manualmanualBIASI appliance manual — GAIA 424RS (GC 41-970-04), GAIA 424S (GC 47-970-08), GAIA 428S (GC 47-970-09)
manualmanualBIASI appliance manual — PRISMA 24SE (GC 47-970-04), PRISMA 24SER (GC 41-970-02), PRISMA 28SE (GC 47-970-05)
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