Baxi
Baxi Insert Check Valve 7854154
Baxi insert check valve with seal, part number 7854154, for Aquaheat HD/HWI and HI/HWI appliances.
At a glance
- Also known as 1129408
£35.29
£29.41 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 Baxi 7854154 is an insert check valve supplied with its seal. It fits within the pipework of Baxi Aquaheat HD/HWI and HI/HWI appliances, where it prevents reverse flow through the water circuit. The valve is a serviceable internal component and is replaced as a unit when it no longer seals or seats correctly.
Signs this part needs replacing
- No flow or noticeably reduced flow through the affected circuit
- Water passing in the wrong direction, indicating the valve is not seating
- Scale, debris or a perished seal preventing the valve from closing
- Persistent flow noise or vibration at the valve position
- Water weeping from the valve or its seal
Before you order
- Confirm the appliance model against the fit list above
- Check the existing valve and seal for damage or debris before ordering
- Verify the part number 7854154 matches the component being replaced
- Confirm the seal is required, as it is supplied with this valve
Compliance
| Alternative numbers | 1129408 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI AQUAHEAT HD/HWI 12/50 | — | — | — | |
| BAXI AQUAHEAT HD/HWI 12/50 WITH HEAT METER & MERCURIUS | — | — | — | |
| BAXI AQUAHEAT HI/ HWI - 4/50 | — | — | — | |
| BAXI AQUAHEAT HI/HWI - 14/50 | — | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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