Sime
Sime Expansion Vessel 5139130
8 litre expansion vessel with a 3/8 inch male connection, manufactured by Sime for use in its boiler range.
At a glance
- Also known as EXPANSION-VESSEL-L9---38-M, 8921943, N6714
£109.88
£91.57 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 5139130 is an 8 litre expansion vessel with a 3/8 inch male connection, manufactured by Sime for its domestic boiler range. It absorbs the increase in water volume as the system heats up, limiting pressure rise and protecting components such as the pressure relief valve. It is fitted across a number of Sime Ecomfort, Format, Climit, Metropolis and Formel appliances.
Signs this part needs replacing
- Boiler pressure rises quickly when the heating is on and drops when it cools
- Water discharging from the pressure relief valve
- System pressure needs topping up frequently
- Water or air escaping from the vessel's air valve
- Vessel feels heavy or sounds full of water when tapped
Before you order
- Confirm your appliance model and, where shown, the GC number against the fitment list
- Check the connection size and thread on the existing vessel — this part has a 3/8 inch male connection
- Check the physical size of the vessel and the space available within the appliance
- Confirm the part number 5139130 matches the vessel being replaced
Compliance
| Alternative numbers | EXPANSION-VESSEL-L9---38-M, 8921943, N6714 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME CLIMIT GG M 28 BF MET - 8105461 | — | — | — | |
| SIME CLIMIT GG M 28 OF MET - 8105551 | — | — | — | |
| SIME CLIMIT GGF 28 BF MET - 8104668 | — | — | — | |
| SIME CLIMIT GGF 28 OF MET - 8104606 | — | — | — | |
| SIME ECOMFORT 25HE | 47-283-06 | 47-283-06 | — | — |
| SIME ECOMFORT 30HE | 47-719-25 | 47-719-25 | — | — |
| SIME ECOMFORT 35HE | 47-283-09 | 47-283-09 | — | — |
| SIME ECOMFORT PLUS 25HE - 8104012 | 47-283-13 | 47-283-13 | — | — |
| SIME ECOMFORT PLUS 25HE SYSTEM - 8104013 | 41-283-10 | 41-283-10 | — | — |
| SIME ECOMFORT PLUS 30 HE - 8104011 | 47-283-14 | 47-283-14 | — | — |
Showing 10 of 49 compatible appliances.
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 — ECOMFORT 25HE (GC 47-283-06), ECOMFORT 30HE (GC 47-719-25), ECOMFORT 35HE (GC 47-283-09), ECOMFORT SYSTEM 25HE (GC 41-283-04)
manualmanualSIME appliance manual — ECOMFORT PLUS 25HE - 8104012 (GC 47-283-13), ECOMFORT PLUS 25HE SYSTEM - 8104013 (GC 41-283-10), ECOMFORT PLUS 30 HE - 8104011 (GC 47-283-14)
manualmanualSIME appliance manual — FORMAT 100B LPG - 8105403 (GC 47-283-08), FORMAT 100B NATURAL GAS - 8105402 (GC 47-283-08)
manualmanualSIME appliance manual — FORMAT 100C - 8098456 (GC 47-719-13), FORMAT 100C LPG - 8098455 (GC 47-719-13), FORMAT 110C (GC 47-719-21)
manualmanualSIME appliance manual — FORMAT SYSTEM 30 NATURAL GAS - 8098472 (GC 41-719-16)
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