
Baxi
Baxi Safety Valve 7753899
Safety valve, part 7753899, for Baxi Assure HP40, HP50, HP55 and HP60 appliances.
At a glance
- Appliance family: Baxi Assure HP heat pump range
- Also known as 8909163
£144.80
£120.67 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 7753899 is a safety valve used across the Baxi Assure HP range of heat pump appliances. It forms part of the appliance's pressure protection arrangement, opening to relieve excess pressure within the system. It is supplied as a single component for service and repair work.
Signs this part needs replacing
- Water weeping or discharging from the valve outlet when the system is at normal operating pressure
- The valve failing to reseat after it has opened, leaving a continuous drip
- Visible scale, corrosion or debris around the valve seat or outlet
- Pressure continuing to rise despite the valve being present in the circuit
- The valve lever or spindle feeling stiff, seized or not returning freely
Before you order
- Confirm the appliance model against the fitment list above, as the valve is listed for specific Assure HP and HP40 variants
- Check the part number on the existing valve or the manufacturer's parts list for your appliance
- Verify the system has been depressurised and drained before removal of the old valve
- Inspect the valve outlet pipework for blockage or scale that may have caused the original fault
Compliance
| Alternative numbers | 8909163 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI ASSURE HP50-11-1PHMB | — | — | — | |
| BAXI ASSURE HP50-11-3PHMB | — | — | — | |
| BAXI ASSURE HP50-13-1PHMB | — | — | — | |
| BAXI ASSURE HP50-13-3PHMB | — | — | — | |
| BAXI ASSURE HP55-11-1-PHMB | — | — | — | |
| BAXI ASSURE HP55-11-3-PHMB | — | — | — | |
| BAXI ASSURE HP55-13-1-PHMB | — | — | — | |
| BAXI ASSURE HP55-13-3-PHMB | — | — | — | |
| BAXI ASSURE HP55-4-1-PHMB | — | — | — | |
| BAXI ASSURE HP55-6-1-PHMB | — | — | — |
Showing 10 of 22 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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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