Alpha
Alpha Filling Loop 15mm 3.015850
15mm filling loop assembly for Alpha gas boilers, replacing codes 3.013867 and 3.014734.
At a glance
- Also known as FILLING-LOOP-15MM-XCB50CD50, 1257649
£73.42
£61.18 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 Alpha 3.015850 is a 15mm filling loop assembly for Alpha gas boilers. It connects the mains cold water supply to the heating circuit so the system can be repressurised. This assembly replaces earlier codes 3.013867 and 3.014734.
Signs this part needs replacing
- Water weeping or dripping from the filling loop valve or connections
- Boiler pressure dropping repeatedly after repressurising
- Filling loop valve fails to shut off fully, allowing water to pass
- Visible corrosion, scale or damage on the loop or valve body
- Difficulty achieving or holding system pressure when topping up
Before you order
- Confirm your boiler model against the fitment list above
- Check the connection size required is 15mm
- Note the GC number where shown to verify compatibility
- Inspect the existing filling loop arrangement to ensure this assembly matches
Compliance
| Alternative numbers | FILLING-LOOP-15MM-XCB50CD50, 1257649 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA ALPHA CB24X | — | — | — | |
| ALPHA ALPHA CB28X | — | — | — | |
| ALPHA ALPHA InTEC 50CS | — | — | — | |
| ALPHA CB24X | 47-532-14 | 47-532-14 | — | — |
| ALPHA CB24X (LPG) | — | — | — | |
| ALPHA CB28X | 47-532-17 | 47-532-17 | — | — |
| ALPHA CB28X (LPG) | — | — | — | |
| ALPHA CD18S | 41-532-06 | 41-532-06 | — | — |
| ALPHA CD18S (LPG) | 41-532-13 | 41-532-13 | — | — |
| ALPHA CD24S | 41-532-02 | 41-532-02 | — | — |
Showing 10 of 16 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.
ALPHA appliance manual — CB24X (GC 47-532-14), CB24X (LPG), CB28X (GC 47-532-17), CB28X (LPG)
manualmanualALPHA appliance manual — CD18S (GC 41-532-06), CD18S (LPG) (GC 41-532-13), CD30S (GC 41-532-08), CD30S (LPG) (GC 41-532-14)
manualmanualALPHA appliance manual — CD24S (GC 41-532-02), CD24S (LPG) (GC 41-532-15)
manualmanualALPHA appliance manual — CD50 (GC 47-532-24), CD50 (LPG)
manualmanualALPHA appliance manual — InTEC 50CS
manualNo technical questions yet for this part.
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