Sime
Sime Rectangle Expansion Vessel 10 Litre 3/8 Inch Male 5183720
Rectangle expansion vessel, 10 litre, 3/8 inch male connection, for Sime Avant, Dewy and Planet Aquaquick boilers.
At a glance
- Also known as 2042016
£107.87
£89.89 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 Sime rectangle expansion vessel is a 10 litre sealed-system vessel with a 3/8 inch male connection, manufactured by Sime under part number 5183720. It absorbs the expansion of heated water within the heating circuit, limiting pressure rise and protecting the boiler and system components. It is used across a range of Sime gas boilers, including the Avant, Dewy and Planet Aquaquick families.
Signs this part needs replacing
- System pressure drops repeatedly and needs frequent topping up.
- Boiler pressure rises sharply once the system is hot.
- Water discharges from the vessel's air charge valve or schrader point.
- The vessel feels heavy or waterlogged when the system is drained.
- Visible corrosion or weeping at the vessel body or connection.
Before you order
- Confirm your appliance model against the fit list above.
- Check the connection size and thread on the existing vessel before removal.
- Check the available space and mounting arrangement for a rectangle vessel of this capacity.
- Confirm the system volume is suited to a 10 litre vessel.
Compliance
| Alternative numbers | 2042016 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME AVANT 30/130 TS MET - 8091621 | — | — | — | |
| SIME DEWY 30/130 HE FS - 8101905 | — | — | — | |
| SIME DEWY 30/130 WM - 8101900 | 47-293-05 | 47-293-05 | — | — |
| SIME DEWY HE 30/50 WM - 3830011 | 47-719-23 | 47-719-23 | — | — |
| SIME PLANET AQUAQUICK 30 PLUS GPL - 8102028 | — | — | — | |
| SIME PLANET AQUAQUICK 30 PLUS MET - 8102027 | — | — | — | |
| SIME PLANET AQUAQUICK 30BF GPL - 8102003 | — | — | — | |
| SIME PLANET AQUAQUICK 30TS GPL - 8102013 | — | — | — | |
| SIME PLANET DEWY 30/50BF MET - 8102700 | — | — | — | |
| SIME SIME AVANT 30/130 TS | — | — | — |
Showing 10 of 13 compatible appliances.
Documents & drawings
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