Sime
Sime Expansion Vessel 5183730
10 litre rectangular expansion vessel for Sime boilers, manufacturer part number 5183730.
At a glance
- Also known as 2048039
£113.90
£94.92 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 5183730 is a 10 litre rectangular expansion vessel used in Sime gas boilers. It absorbs the expansion of water as the heating system warms, limiting the pressure rise inside the sealed circuit. It is listed for the Murelle Advanced HE 40, Edea and Brava Slim HE 40 ranges.
Signs this part needs replacing
- Boiler pressure rises sharply when the heating is running and drops again once cold
- The pressure relief valve discharges water during heating cycles
- System pressure is repeatedly lost and needs frequent topping up
- The pressure gauge reads high with the system cold
- Water, or no air pressure, is found at the vessel's air valve
Before you order
- Confirm your boiler model and GC number against the fitment list
- Check the existing vessel's capacity and shape — this part is 10 litres and rectangular
- Verify the part number 5183730 on the existing component or in the manufacturer's parts list
- Confirm the system charge pressure before fitting
Compliance
| Alternative numbers | 2048039 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME BRAVA SLIM HE 40 R E - 8112268 | — | — | — | |
| SIME BRAVA SLIM HE 40 R I - 8112267 | — | — | — | |
| SIME EDEA 35 T - 8116912 | 41-283-65 | 41-283-65 | — | — |
| SIME EDEA 40 - 8116902 | 47-283-92 | 47-283-92 | — | — |
| SIME MURELLE ADVANCED HE 40 Erp - 8114226 | 47-283-54 | 47-283-54 | — | — |
| SIME MURELLE ADVANCED HE40 - 8112226 | 47-283-54 | 47-283-54 | — | — |
| SIME SIME MURELLE ADVANCED HE40 | — | — | — |
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.
SIME appliance manual — BRAVA SLIM HE 40 R E - 8112268, BRAVA SLIM HE 40 R I - 8112267
manualmanualSIME appliance manual — EDEA 35 T - 8116912 (GC 41-283-65)
manualmanualSIME appliance manual — EDEA 40 - 8116902 (GC 47-283-92)
manualmanualSIME appliance manual — MURELLE ADVANCED HE 40 Erp - 8114226 (GC 47-283-54)
manualmanualSIME appliance manual — MURELLE ADVANCED HE40 - 8112226 (GC 47-283-54)
manualNo technical questions yet for this part.
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