Glow-worm
Glow-worm Flow Limiter 05429900
12 litre/min flow limiter for Glow-worm and Saunier Duval combi boilers, supplied as a pack of five.
£93.47
£77.89 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 05429900 is a 12 litre/min flow limiter used in Glow-worm and Saunier Duval combi boilers. It restricts the domestic hot water flow rate through the appliance so the draw-off stays within the boiler's design capacity and the plate heat exchanger can hold a stable temperature. It is supplied as a pack of five.
Signs this part needs replacing
- Hot water flow rate at the tap is noticeably higher or lower than the rated 12 L/min
- Hot water temperature fluctuates or runs unstable during draw-off
- Boiler cycles or cuts out while hot water is being drawn
- Scale or debris is visible in the limiter when it is removed
- Water weeps from around the flow limiter housing
Before you order
- Confirm your appliance model against the fit list above
- Check the existing flow limiter is rated at 12 L/min
- Inspect the housing and seals for damage before refitting
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM ENERGY 35C | 47-019-26 | 47-019-26 | — | — |
| GLOWWORM ENERGY 35C | — | — | — | |
| GLOWWORM ENERGY7 35C | 47-019-62 | 47-019-62 | — | — |
| GLOWWORM HOME 35C | 47-019-31 | 47-019-31 | — | — |
| GLOWWORM HOME 35C | — | — | — | |
| GLOWWORM SUSTAIN 35C | — | — | — | |
| GLOWWORM SUSTAIN 35C | 47-019-34 | 47-019-34 | — | — |
| GLOWWORM ULTIMATE 2 35C | 47-019-36 | 47-019-36 | — | — |
| GLOWWORM ULTIMATE 3 35C | 47-019-57 | 47-019-57 | — | — |
| SAUNIER DUVAL SAUNIER DUVAL 623 COMBI | — | — | — |
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.
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