Glow-worm
Glow-worm Gas Cock S1007800
Gas cock isolation valve S1007800 for Glow-worm GW series and Xtramax HE boilers, superseding codes 801940 and 2000801940.
At a glance
- Part type: gas cock (gas isolation valve)
- Gas work must be carried out by a Gas Safe registered engineer
£42.02
£35.02 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 gas cock is a gas isolation valve used on Glow-worm GW series and Xtramax HE boilers. It sits on the gas supply to the appliance and allows the gas feed to be shut off for servicing, tightness testing or component replacement. This valve carries the manufacturer part number S1007800.
Signs this part needs replacing
- A gas smell around the valve body or its connections
- The spindle is stiff, seized or will not turn through its full travel
- The valve passes gas when it should be closed, so the supply cannot be isolated
- Visible corrosion, cracking or damage to the valve body
- Weeping or staining at the valve joints after servicing
Before you order
- Confirm the boiler model and GC number against the fitment list above
- Check the part number marked on the existing valve matches S1007800
- Confirm whether the fitted valve carries an earlier code (801940 or 2000801940) before ordering
- Gas work must be carried out by a Gas Safe registered engineer
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM GLOWWORM GW 18SI | — | — | — | |
| GLOWWORM GLOWWORM GW 23C | — | — | — | |
| GLOWWORM GLOWWORM GW 24CI | — | — | — | |
| GLOWWORM GLOWWORM GW 30CI | — | — | — | |
| GLOWWORM GLOWWORM GW 30CI PLUS | — | — | — | |
| GLOWWORM GLOWWORM GW 30SI | — | — | — | |
| GLOWWORM GW 18SXi | 41-047-72 | 41-047-72 | — | — |
| GLOWWORM GW 18Si | 41-047-61 | 41-047-61 | — | — |
| GLOWWORM GW 23C | 47-047-18 | 47-047-18 | — | — |
| GLOWWORM GW 24CXi | 47-047-23 | 47-047-23 | — | — |
Showing 10 of 17 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 — GW 18SXi (GC 41-047-72)
manualmanualGLOWWORM appliance manual — GW 18Si (GC 41-047-61)
manualmanualGLOWWORM appliance manual — GW 23C (GC 47-047-18)
manualmanualGLOWWORM appliance manual — GW 24CXi (GC 47-047-23)
manualmanualGLOWWORM appliance manual — GW 24Ci (GC 47-047-19)
manualmanualGLOWWORM appliance manual — GW 30CXi (GC 47-047-24)
manualmanualGLOWWORM appliance manual — GW 30Ci (GC 47-047-20)
manualmanualGLOWWORM appliance manual — GW 30SXi (GC 41-047-62)
manualmanualGLOWWORM appliance manual — GW 30Si (GC 41-047-70)
manualmanualGLOWWORM appliance manual — GW 38CXi (GC 47-047-27)
manualmanualGLOWWORM appliance manual — XTRAMAX HE (GC 47-047-29)
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