Ravenheat
Ravenheat 8 Litre Expansion Vessel 3/8 Inch 0004VAS11011/0
8 litre diaphragm expansion vessel with a 3/8 inch connection for Ravenheat Low NOx gas boilers.
At a glance
- Also known as 1841343
£106.66
£88.88 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 Ravenheat 8 litre expansion vessel (part 0004VAS11011/0) is a diaphragm expansion vessel with a 3/8 inch connection, used on Ravenheat Low NOx gas boilers. It absorbs the expansion of water as the sealed heating circuit heats up, limiting the pressure rise across the system. It is listed for the Ravenheat CSI and HE Low NOx appliance families.
Signs this part needs replacing
- Boiler pressure rises sharply when the heating is running and drops again once cold
- Water discharging from the pressure relief valve
- System pressure needs topping up frequently
- Water or corrosion visible around the vessel connection
- Knocking or banging from the boiler as it heats up
Before you order
- Confirm your appliance model and GC number against the fitment list above
- Check the existing vessel connection is 3/8 inch
- Check the capacity required is 8 litre
- Verify part number 0004VAS11011/0 against the manufacturer's parts list for your boiler
Compliance
| GC number | H61-687 |
|---|---|
| Barcode / EAN | 5060022143357 |
| Alternative numbers | 1841343 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| RAVENHEAT CSI 120 LOW NOX LPG | 47-581-38 | 47-581-38 | — | — |
| RAVENHEAT CSI 120 LOW NOX NATURAL GAS | 47-581-37 | 47-581-37 | — | — |
| RAVENHEAT CSI 120 T LOW NOX LPG | 47-581-38 | 47-581-38 | — | — |
| RAVENHEAT CSI 120 T LOW NOX NATURAL GAS | 47-581-39 | 47-581-39 | — | — |
| RAVENHEAT CSI 150 LOW NOX LPG | — | — | — | |
| RAVENHEAT CSI 150 LOW NOX NATURAL GAS | — | — | — | |
| RAVENHEAT CSI 150 T LOW NOX LPG | 47-581-42 | 47-581-42 | — | — |
| RAVENHEAT CSI 150 T LOW NOX NATURAL GAS | 47-581-40 | 47-581-40 | — | — |
| RAVENHEAT HE 120N (T) LOW NOX | — | — | — | |
| RAVENHEAT HE 120N LOW NOX | — | — | — |
Showing 10 of 18 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.
RAVENHEAT appliance manual — CSI 120 LOW NOX LPG (GC 47-581-38), CSI 120 LOW NOX NATURAL GAS (GC 47-581-37), CSI 120 T LOW NOX LPG (GC 47-581-38), CSI 120 T LOW NOX NATURAL GAS (GC 47-581-39), CSI 150 LOW NOX LPG, CSI 150 LOW NOX NATURAL GAS, CSI 150 T LOW NOX LPG (GC 47-581-42), CSI 150 T LOW NOX NATURAL GAS (GC 47-581-40)
manualmanualRAVENHEAT appliance manual — HE 120N (T) LOW NOX, HE 120N LOW NOX, HE 150N (T) LOW NOX, HE 150N LOW NOX
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