Worcester Bosch
Worcester Bosch Isolation Valve 77161922230
Worcester Bosch isolation valve, part 77161922230, for Greenstar oil and Highflow combi appliances; isolates the water circuit during servicing.
At a glance
- Part type: Isolation valve
- Appliance family: Greenstar oil and Highflow combi
- Also known as 1011551
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£15.94
£13.28 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 Worcester Bosch isolation valve, part number 77161922230, is a service valve used within the water circuit of Worcester Bosch heating appliances. It allows the flow through a section of pipework to be shut off so that components can be serviced, drained or replaced without emptying the whole system. The valve is supplied as a Worcester Bosch spare and is listed against both oil-fired Greenstar models and Highflow combi appliances.
Signs this part needs replacing
- Water weeping from the valve body or around the spindle
- The valve will not shut off fully when turned, so the circuit cannot be isolated
- A stiff or seized handle that will not move through its full travel
- Damp staining or limescale tracking around the valve connection
- Dripping from the valve after it has been operated during a service
Before you order
- Check the GC number and appliance serial plate against the compatibility list to confirm the valve suits your model.
- Quote alternative part number 1011551 when cross-referencing an older stock listing.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Isolation valve |
|---|
Compliance
| Manufacturer part number (MPN) | 77161922230 |
|---|---|
| GC number | E01-726 |
| Barcode / EAN | 4010009741794 |
| GPC classification | Valves/Fittings - Water and Gas |
| Alternative numbers | 1011551 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 12/18 OOO GB OIL | — | — | — | |
| WORCESTER GREENSTAR 18/25 OOO GB OIL | — | — | — | |
| WORCESTER HIGHFLOW 400 BF COMBI LPG | 47-311-22 | 47-311-22 | — | — |
| WORCESTER HIGHFLOW 400 BF COMBI NG | 47-311-19 | 47-311-19 | — | — |
| WORCESTER HIGHFLOW 400 ELECTRONIC BF NG | 47-311-62 | 47-311-62 | — | — |
| WORCESTER HIGHFLOW 400 ELECTRONIC FSN NG | 47-311-61 | 47-311-61 | — | — |
| WORCESTER HIGHFLOW 400 ELECTRONIC FSP NG | 47-311-64 | 47-311-64 | — | — |
| WORCESTER HIGHFLOW 400 ELECTRONIC OF NG | 47-311-63 | 47-311-63 | — | — |
| WORCESTER HIGHFLOW 400 OF COMBI LPG | 47-311-23 | 47-311-23 | — | — |
| WORCESTER HIGHFLOW 400 OF COMBI NG | 47-311-20 | 47-311-20 | — | — |
Showing 10 of 22 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.
WORCESTER appliance manual — HIGHFLOW 400 BF COMBI LPG (GC 47-311-22), HIGHFLOW 400 BF COMBI NG (GC 47-311-19)
manualmanualWORCESTER appliance manual — HIGHFLOW 400 ELECTRONIC BF NG (GC 47-311-62), HIGHFLOW 400 ELECTRONIC FSP NG (GC 47-311-64), HIGHFLOW 400 ELECTRONIC OF NG (GC 47-311-63), HIGHFLOW 400 OF COMBI LPG (GC 47-311-23), HIGHFLOW 400 OF COMBI NG (GC 47-311-20)
manualmanualWORCESTER appliance manual — HIGHFLOW 400 ELECTRONIC FSN NG (GC 47-311-61)
manualmanualWORCESTER appliance manual — HIGHFLOW 400 RSF COMBI LPG (GC 47-311-21), HIGHFLOW 400 RSF COMBI NG (GC 47-311-18)
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