Elson
Elson Automatic Air Vent 3/8 Inch 24200121
Automatic air vent with a 3/8 inch BSP connection, Elson part 24200121 for CB-1Z and CB-2Z wall mounted heat interface units.
£34.80
£29.00 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 Elson automatic air vent with a 3/8 inch BSP connection is a system component that continuously releases trapped air from the water circuit without manual intervention. It is listed by the manufacturer under part number 24200121 and is used on Elson wall mounted heat interface units. Its function is to prevent air locking and the associated circulation and noise problems in sealed heating and hot water circuits.
Signs this part needs replacing
- Water weeping or dripping from the vent body or cap
- Persistent air noise or gurgling in the circuit despite the vent being fitted
- Radiators or the heat interface unit requiring repeated manual venting
- Rising or unstable system pressure caused by air not being released
- Corrosion or scale build-up around the vent outlet
Before you order
- Confirm the connection size on the existing vent is 3/8 inch BSP
- Check the appliance model against the fit list above before ordering
- Isolate the appliance and allow the circuit to cool and depressurise before removal
- Check the sealing face and washer condition on the port where the vent screws in
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ELSON CB-1Z WALL MOUNTED 1 ZONE HEAT INTERFACE UNIT | — | — | — | |
| ELSON CB-1Z- DC WALL MOUNTED 1 ZONE HEAT INTERFACE UNIT | — | — | — | |
| ELSON CB-2Z WALL MOUNTED 2 ZONE HEAT INTERFACE UNIT | — | — | — | |
| ELSON CB-2Z- DC WALL MOUNTED 2 ZONE HEAT INTERFACE UNIT | — | — | — | |
| ELSON ELSON WATER HEATERS | — | — | — | |
| HEATRAE SADIA HEATRAE SADIA PRODUCTS | — | — | — |
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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