Glow-worm
Glow-worm Olive Adaptor Reducer S204185
Glow-worm S204185 olive adaptor reducer for use on older Economy, Fuelsaver and Express gas boiler ranges.
At a glance
- Part type: olive adaptor reducer
- Also known as 1333861
Showing prices
£10.04
£8.37 ex. VAT · VAT at 20%
Available to order · 1 working day
Available to order · 1 working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Glow-worm S204185 is an olive adaptor reducer used on a number of older Glow-worm gas boiler ranges. It forms part of the gas or water connection where a pipe size step-down is required at the joint. It is listed by the manufacturer under miscellaneous gas boiler spares.
Signs this part needs replacing
- A weeping or damp joint at the pipe connection after the boiler has run
- A detectable gas smell around the connection on gas-side applications
- Visible corrosion, pitting or flattening on the existing olive
- The olive has been disturbed or reused during a service or repair and no longer seals
- The pipe does not seat correctly because the adaptor reducer is damaged or distorted
Before you order
- Confirm your boiler model and, where applicable, the serial number against the fit list
- Check the GC number on the appliance data badge where one is quoted for your model
- Verify the pipe and olive sizes required at the joint against the manufacturer's parts list
- Confirm how many adaptor reducers are needed for the connection being worked on
Compliance
| GC number | 312-799 |
|---|---|
| Barcode / EAN | 4024074501184 |
| Alternative numbers | 1333861 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM ECOMOMY 80FF - SERIAL NUMBER 3037 | — | — | — | |
| GLOWWORM ECONOMY 24 & ECONOMY 24BF PLUS | 41-313-90 | 41-313-90 | — | — |
| GLOWWORM ECONOMY 24FF | 41-313-90 | 41-313-90 | — | — |
| GLOWWORM ECONOMY 30 & ECONOMY 30BF PLUS | 41-319-01 | 41-319-01 | — | — |
| GLOWWORM ECONOMY 30F | 41-319-05 | 41-319-05 | — | — |
| GLOWWORM ECONOMY 40 & ECONOMY 40BF PLUS | 41-319-02 | 41-319-02 | — | — |
| GLOWWORM ECONOMY 40FF - SERIAL NUMBER 14451 | 41-319-06 | 41-319-06 | — | — |
| GLOWWORM ECONOMY 50 & ECONOMY 50BF PLUS | 41-319-03 | 41-319-03 | — | — |
| GLOWWORM ECONOMY 50FF - SERIAL NUMBER 14255 | 41-319-07 | 41-319-07 | — | — |
| GLOWWORM ECONOMY 60 & ECONOMY 60BF PLUS | 41-319-04 | 41-319-04 | — | — |
Showing 10 of 78 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
GLOWWORM appliance manual — ECONOMY 30 & ECONOMY 30BF PLUS (GC 41-319-01)
manualmanualGLOWWORM appliance manual — ECONOMY 30F (GC 41-319-05)
manualmanualGLOWWORM appliance manual — ECONOMY 40 & ECONOMY 40BF PLUS (GC 41-319-02)
manualmanualGLOWWORM appliance manual — ECONOMY 50 & ECONOMY 50BF PLUS (GC 41-319-03)
manualmanualGLOWWORM appliance manual — ECONOMY PLUS 24F (GC 41-319-21)
manualmanualGLOWWORM appliance manual — ECONOMY PLUS 40F (GC 41-319-30), ECONOMY PLUS 50F (GC 41-319-31)
manualmanualGLOWWORM appliance manual — ECONOMY PLUS 60F (GC 41-319-63)
manualmanualGLOWWORM appliance manual — ECONOMY PLUS 80F (GC 41-319-64)
manualmanualGLOWWORM appliance manual — EXPRESS 100 (GC 47-313-06)
manualmanualGLOWWORM appliance manual — EXPRESS 100 BOILER - SIT CONTROLS
manualmanualGLOWWORM appliance manual — EXPRESS 80 (GC 47-313-04)
manualmanualGLOWWORM appliance manual — FUELSAVER 30 R MKII & ECONOMY PLUS 30C (GC 41-313-77)
manualmanualGLOWWORM appliance manual — FUELSAVER 40 R MKII & ECONOMY PLUS 40C (GC 41-313-78)
manualmanualGLOWWORM appliance manual — FUELSAVER 50R MKII & ECONOMY PLUS 50 C (GC 41-313-79)
manualmanualGLOWWORM appliance manual — FUELSAVER 60 BF MKII (GC 41-313-10), FUELSAVER 75 BF MKII (GC 41-313-11)
manualmanualGLOWWORM appliance manual — FUELSAVER COMPLHEAT 30 (GC 41-319-14)
manualmanualGLOWWORM appliance manual — FUELSAVER COMPLHEAT 40 (GC 41-319-20), FUELSAVER COMPLHEAT 55 (GC 41-319-19)
manualmanualGLOWWORM appliance manual — FUELSAVER COMPLHEAT 65 (GC 41-319-21), FUELSAVER COMPLHEAT 80 (GC 41-319-18)
manualmanualGLOWWORM appliance manual — FUELSAVER UFB 30B (GC 41-319-32), FUELSAVER UFB 40B (GC 41-319-33), FUELSAVER UFB 50B (GC 41-319-34)
manualmanualGLOWWORM appliance manual — FUELSAVER UFB 60B (GC 41-319-35), FUELSAVER UFB 75B (GC 41-319-36)
manualmanualGLOWWORM appliance manual — MICRON 100FF (GC 41-047-22)
manualmanualGLOWWORM appliance manual — MICRON 120FF (GC 41-047-23)
manualmanualGLOWWORM appliance manual — SWIFTFLOW 100 - HONEYWELL CONTROLS (GC 47-313-08)
manualmanualGLOWWORM appliance manual — SWIFTFLOW 100 - SIT CONTROLS (GC 47-313-07)
manualmanualGLOWWORM appliance manual — SWIFTFLOW 75 - HONEYWELL CONTROLS (GC 47-313-14), SWIFTFLOW 75 - SIT CONTROLS (GC 47-313-15)
manualmanualGLOWWORM appliance manual — SWIFTFLOW 80 - HONEYWELL CONTROLS (GC 47-313-10)
manualmanualGLOWWORM appliance manual — SWIFTFLOW 80 - SIT CONTROLS (GC 47-313-09)
manualmanualGLOWWORM appliance manual — ULTIMATE 100FF (GC 41-319-61)
manualmanualGLOWWORM appliance manual — ULTIMATE 120FF (GC 41-319-75)
manualmanualGLOWWORM appliance manual — ULTIMATE 30BF (GC 41-319-51)
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