Glow-worm
Glow-worm 3 Way Valve Assembly 0020018574
Three-way valve assembly for Glow-worm Energy 35 Store and Xtramax HE boilers, part number 0020018574.
At a glance
- Also known as 1337511
£338.80
£282.33 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 Glow-worm 3 Way Valve Assembly (part number 0020018574) is a diverter valve used in Glow-worm gas boilers. It directs water between the heating circuit and the domestic hot water circuit according to demand. It is listed for the Energy 35 Store and Xtramax HE appliance families.
Signs this part needs replacing
- No domestic hot water while the heating continues to work
- Heating circuit warming when only hot water is selected
- Radiators failing to heat when heating is demanded
- Valve body leaking from the spindle or seals
- Actuator head failing to move the valve between positions
Before you order
- Confirm your boiler model and, where shown, the GC number against the fitment list above.
- Check the existing valve's part number to confirm 0020018574 is the correct unit.
- Establish whether the fault lies with the valve body, the actuator head, or the wiring before replacing the assembly.
- Isolate the appliance and drain the relevant circuit before fitting.
Compliance
| Barcode / EAN | 3532041200448 |
|---|---|
| Alternative numbers | 1337511 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM ENERGY 35 STORE | — | — | — | |
| GLOWWORM ENERGY 35 STORE | 47-019-37 | 47-019-37 | — | — |
| GLOWWORM XTRAMAX HE | 47-047-29 | 47-047-29 | — | — |
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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