Sime
Sime Non Return Valve 1in 6238302
Sime 1 inch non-return valve, part 6238302, for Super FOUR and Super FOUR Revised gas boilers.
At a glance
- Also known as NON-RETURN-VALVE-1, 2041222
£34.93
£29.11 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 6238302 is a 1 inch non-return valve used on Sime gas boilers. It allows flow in one direction only and prevents reverse circulation through the pipework. It is listed for the Sime Super FOUR and Super FOUR Revised appliance families.
Signs this part needs replacing
- Water passes back through the valve in the wrong direction
- System pressure drops when the boiler is not running
- Radiators heat unevenly because of reverse circulation
- The valve no longer seats and backflow is audible
- Vibration or noise from the valve during operation
Before you order
- Confirm the appliance is a Sime Super FOUR or Super FOUR Revised
- Check the model number against the fit list above
- Verify the connection size is 1 inch
- Check the orientation of the existing valve before removal
Compliance
| Alternative numbers | NON-RETURN-VALVE-1, 2041222 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME SIME SUPER FOUR | — | — | — | |
| SIME SIME SUPER FOUR REVISED | — | — | — | |
| SIME SUPER FOUR - 8091605 | 47-719-04 | 47-719-04 | — | — |
| SIME SUPER FOUR REVISED - 8091607 | 47-719-04 | 47-719-04 | — | — |
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.
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