Glow-worm
Glow-worm Water Quantity Limiter 05430300
Water quantity limiter, part 05430300, for a range of Glow-worm gas boilers including Betacom, Compact, Easicom, Energy and Sustain models.
£37.63
£31.36 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 water quantity limiter is a Glow-worm component supplied under part number 05430300. It regulates the volume of water passing through the domestic hot water circuit on a range of Glow-worm gas boilers, keeping flow within the design limit for the appliance. It is fitted at the cold water inlet side of the DHW circuit.
Signs this part needs replacing
- Domestic hot water flow noticeably lower than the appliance's rated output
- Flow rate that varies or drops away as the tap is run
- Scale or debris build-up restricting the limiter
- Water weeping from the limiter body or its connections
- Inconsistent hot water delivery across outlets
Before you order
- Confirm your boiler model against the fit list above
- Check the GC number on the appliance data badge where one is listed
- Verify the existing part number 05430300 before ordering
- Inspect the inlet assembly for scale or debris that may also need clearing
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM BETACOM 3 30C | 47-019-42 | 47-019-42 | — | — |
| GLOWWORM BETACOM 4 30C | 47-019-53 | 47-019-53 | — | — |
| GLOWWORM COMPACT 28C | — | — | — | |
| GLOWWORM COMPACT 28C P | — | — | — | |
| GLOWWORM EASICOM 2 28C | — | — | — | |
| GLOWWORM EASICOM 2 28C | 47-019-23 | 47-019-23 | — | — |
| GLOWWORM EASICOM 3 28C | 47-019-51 | 47-019-51 | — | — |
| GLOWWORM ENERGY 2 30C (P-GB) | — | — | — | |
| GLOWWORM ENERGY 30C | 47-019-25 | 47-019-25 | — | — |
| GLOWWORM ENERGY 30C | — | — | — |
Showing 10 of 16 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.
GLOWWORM appliance manual — BETACOM 3 30C (GC 47-019-42)
manualmanualGLOWWORM appliance manual — BETACOM 4 30C (GC 47-019-53)
manualmanualGLOWWORM appliance manual — EASICOM 2 28C (GC 47-019-23)
manualmanualGLOWWORM appliance manual — EASICOM 3 28C (GC 47-019-51)
manualmanualGLOWWORM appliance manual — ENERGY 30C (GC 47-019-25)
manualmanualGLOWWORM appliance manual — ESSENTIAL 28C (GC 47-019-28)
manualNo technical questions yet for this part.
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