Hamworthy
Hamworthy Automatic Air Vent 1/2 Inch 573407091
Automatic air vent with 1/2 inch connection for Hamworthy Milborne 501 and 502 wall hung condensing boilers.
At a glance
- Also known as 2064622
£54.08
£45.07 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
This is a Hamworthy automatic air vent with a 1/2 inch connection, supplied as a spare part for the Milborne range of wall hung condensing boilers. The vent is fitted to the appliance to release trapped air from the water circuit automatically, helping to keep the system free of airlocks and maintaining stable circulation through the boiler. It is the component listed under Hamworthy part number 573407091 for the Milborne 501 and 502 models.
Signs this part needs replacing
- Water weeping or dripping from the vent body or its connection
- Visible corrosion or scale build-up around the vent and nearby pipework
- Air continuing to circulate in the system, causing noise or poor heat distribution despite venting
- The vent no longer releasing air when the system is filled or bled
Before you order
- Confirm the boiler model is a Hamworthy Milborne 501 or 502, as listed in the fitment information
- Check the connection on the existing vent measures 1/2 inch
- Verify the Hamworthy part number 573407091 matches the number on the part being replaced
- Isolate the appliance and drain down as required before removing the existing vent
Compliance
| Alternative numbers | 2064622 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| HAMWORTHY HAMWORTHY SPARE PARTS | — | — | — | |
| HAMWORTHY MILBORNE 501 WALL HUNG CONDENSING | — | — | — | |
| HAMWORTHY MILBORNE 502 WALL HUNG CONDENSING | — | — | — |
Documents & drawings
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