Alpha
Alpha Diverter Valve Body 1.5721
Diverter valve body 1.5721 for the Alpha Flowsmart 50 wall hung gas boiler.
At a glance
- Appliance family: Flowsmart 50 wall hung
- Also known as DIVERTER-VALVE-BODY, 1258531
£160.24
£133.53 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 Alpha 1.5721 is a diverter valve body for the Alpha Flowsmart 50 wall hung gas boiler. It forms part of the hydraulic circuit and directs water flow between central heating and domestic hot water demand. The valve body is the component operated by the diverter actuator.
Signs this part needs replacing
- No hot water while the boiler still fires for central heating
- Domestic hot water runs lukewarm or fluctuates in temperature
- Boiler fails to switch between heating and hot water modes
- Water leaking from around the valve body
- Heating runs when hot water is drawn, indicating a sticking valve
Before you order
- Confirm your appliance is an Alpha Flowsmart 50 wall hung boiler
- Check the part number 1.5721 against the valve body fitted to the appliance
- Establish whether the fault lies with the valve body or the diverter actuator before ordering
- Isolate the power and water supply before fitting
Compliance
| Alternative numbers | DIVERTER-VALVE-BODY, 15721, 1258531 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA WALL HUNG FLOWSMART 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 technical questions yet for this part.
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