Glow-worm
Glow-worm Filling Cock S1007000
Glow-worm filling cock, part S1007000, for GW series appliances; a filling device used to pressurise the heating system from the mains supply.
At a glance
- Part type: Filling devices
£16.02
£13.35 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 filling cock, part number S1007000, is a filling device fitted to Glow-worm GW series appliances. It forms part of the filling loop arrangement and controls the flow of mains cold water into the heating circuit when the system is topped up or repressurised. The part is listed by the manufacturer under filling devices and filling loops.
Signs this part needs replacing
- The system will not hold pressure, or pressure drops steadily after topping up.
- Water weeps or drips from the filling cock body or spindle when the valve is closed.
- The handle is stiff, seized or will not shut off fully.
- System pressure continues to rise after the filling loop has been closed.
- Scale or corrosion is visible around the valve seating or connection points.
Before you order
- Confirm the appliance model and GC number against the compatibility list, as several GW variants use different filling arrangements.
- Check the previous part numbers listed below against the number on the existing component before ordering.
- Inspect the sealing washers and connections on the filling loop, as these are commonly disturbed during replacement.
Mechanical
| Part type | Filling Loops |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | S1007000 |
|---|---|
| GC number | E91-992 |
| GPC classification | Valves/Fittings - Water and Gas |
| Alternative numbers | FILLING-COCK, 1007000, 2000801907, 801907, S10070 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM GLOWWORM GW 23C | — | — | — | |
| GLOWWORM GLOWWORM GW 24CI | — | — | — | |
| GLOWWORM GLOWWORM GW 30CI | — | — | — | |
| GLOWWORM GLOWWORM GW 30CI PLUS | — | — | — | |
| GLOWWORM GLOWWORM GW 35CI | — | — | — | |
| GLOWWORM GW 23C | 47-047-18 | 47-047-18 | — | — |
| GLOWWORM GW 24Ci | 47-047-19 | 47-047-19 | — | — |
| GLOWWORM GW 30Ci | 47-047-20 | 47-047-20 | — | — |
| GLOWWORM GW 30Ci PLUS | 47-047-22 | 47-047-22 | — | — |
| GLOWWORM GW 35Ci | 47-047-28 | 47-047-28 | — | — |
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.
GLOWWORM appliance manual — GW 23C (GC 47-047-18)
manualmanualGLOWWORM appliance manual — GW 24Ci (GC 47-047-19)
manualmanualGLOWWORM appliance manual — GW 30Ci (GC 47-047-20)
manualmanualGLOWWORM appliance manual — GW 30Ci PLUS (GC 47-047-22)
manualmanualGLOWWORM appliance manual — GW 35Ci (GC 47-047-28)
manualmanualGLOWWORM appliance manual — ULTRACOM 2 24CXi (GC 47-019-10)
manualmanualGLOWWORM appliance manual — ULTRACOM 2 30CXi (GC 47-019-11)
manualmanualGLOWWORM appliance manual — ULTRACOM 2 35CXi (GC 47-019-12)
manualmanualGLOWWORM appliance manual — XTRAMAX HE (GC 47-047-29)
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