Sime
Sime Pressure Relief Valve 6040208
Pressure relief valve 6040208 for selected Sime Dewy and Murelle gas boilers.
At a glance
- Also known as 2042278
Showing prices
£31.14
£25.95 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Sime 6040208 is a pressure relief valve for Sime gas boilers. It is used in the heating circuit to release excess pressure and protect the appliance from over-pressurisation. It is listed for use across selected Sime Dewy and Murelle models.
Signs this part needs replacing
- Water leaking from the pressure relief discharge pipe when the system is not over-pressurised.
- Boiler pressure repeatedly drops after topping up.
- System pressure rises during heating and does not settle.
- The valve does not reseat or continues to weep after operation.
- Visible scale, debris or corrosion around the valve outlet.
Before you order
- Check the boiler model against the fitment list above.
- Confirm the existing part number is 6040208 where visible.
- Check the valve connection and system pressure before fitting.
- Gas boiler work must be carried out by a competent person.
Compliance
| Alternative numbers | 2042278 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME DEWY 30/130 HE FS - 8101905 | — | — | — | |
| SIME MURELLE EV HE 25-55 - 8102750 | — | — | — | |
| SIME MURELLE EV HE 30-55 - 8102752 | — | — | — | |
| SIME MURELLE HE 25/55 BF - 8102720 | — | — | — | |
| SIME MURELLE HE 30/55 BF - 8102722 | — | — | — | |
| SIME SIME DEWY 30/130 HE FS | — | — | — |
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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 technical questions yet for this part.
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