Sime
Sime Expansion Vessel Nut 1/2 Inch 6146330
A 1/2 inch nut for the expansion vessel connection on Sime gas boilers, part number 6146330.
At a glance
- Also known as 2040566
Showing prices
£3.83
£3.19 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
A 1/2 inch nut for the expansion vessel connection, manufactured by Sime. It secures the expansion vessel to the boiler's hydraulic circuit on Sime gas boilers. Supplied under part number 6146330.
Signs this part needs replacing
- Corrosion or rust on the nut or its threads
- Weeping or visible water at the expansion vessel connection
- Rounded or damaged hex flats that prevent correct tightening
- Cross-threaded or stripped threads on the nut
- System pressure loss traced to the expansion vessel connection
Before you order
- Confirm your boiler model against the fitment list above
- Check the thread size and condition of the expansion vessel connection
- Isolate and drain the boiler before removing the existing nut
Compliance
| Alternative numbers | 2040566 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIME FORMAT 25 OF C MET - 8092923 | — | — | — | |
| SIME FORMAT 25 OF GPL - 8092918 | — | — | — | |
| SIME FORMAT 25 OF MET - 8092906 | — | — | — | |
| SIME FORMAT 25BF GPL - 8092970 | — | — | — | |
| SIME FORMAT 25BF MET - 8092969 | — | — | — | |
| SIME FORMAT 25BF TS GPL - 8092981 | — | — | — | |
| SIME FORMAT 25BF TS MET - 8092980 | — | — | — | |
| SIME FORMAT 30BF GPL - 8092961 | — | — | — | |
| SIME FORMAT 30BF TS GPL - 8092983 | — | — | — | |
| SIME FRIENDLY FORMAT 100E - 8092962 | 47-719-09 | 47-719-09 | — | — |
Showing 10 of 40 compatible appliances.
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.
manual
SIME appliance manual — FRIENDLY FORMAT 100E - 8092962 (GC 47-719-09), FRIENDLY FORMAT 80 TECHNYL - 8092974 (GC 47-719-20), FRIENDLY FORMAT 80E TECHNYL - 8092973 (GC 47-719-19)
manualmanualSIME appliance manual — METROPOLIS DGT 25 BF GPL - 8107901, METROPOLIS DGT 25 BF LPG - 8107910, METROPOLIS DGT 25 BF MET - 8107900, METROPOLIS DGT 25 BF NG - 8107911, METROPOLIS DGT 25 OF GPL - 8107801
manualmanualSIME appliance manual — SUPER 105 MKII - 8093563 (GC 47-719-15), SUPER 90 MKII - 8093560 (GC 47-719-14)
manualNo technical questions yet for this part.
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