Buderus
Buderus Gas Valve CG20 63039789
Buderus CG20 gas valve, part number 63039789, for Gb312-200 series boilers.
At a glance
- Appliance family: Gb312-200
- Also known as 2241742
£872.60
£727.17 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 Buderus GAS VALVE CG20 is a gas valve assembly used in Buderus Gb312-200 series appliances. It regulates the supply of gas to the burner in line with the appliance's demand, and is identified by Buderus part number 63039789. The valve is rated for use on 200kW input appliances within this range.
Signs this part needs replacing
- The burner fails to light, or lights and then drops out shortly after ignition
- Gas pressure at the burner cannot be set or held steady during commissioning
- Flame supervision faults or lockouts recurring despite correct electrode and lead condition
- Visible soiling, corrosion or damage around the valve body or its gas ways
- Audible gas passing at the valve when the appliance is not calling for heat
Before you order
- Confirm the appliance model and version against the fit list above, as the valve differs between G20 and G25 variants
- Match the Buderus part number 63039789 shown on the existing valve or the appliance documentation
- Check the boiler's gas type and rated input, since this valve is specified for 200kW appliances
- Verify that any fault is at the valve rather than the gas train, wiring or ignition components before ordering
Compliance
| Barcode / EAN | 4010009944720 |
|---|---|
| Alternative numbers | 2241742 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BUDERUS GB312-200, G20 BE V2 - 7747007571 | — | — | — | |
| BUDERUS GB312-200, G20 V2 - 7747005630 | — | — | — | |
| BUDERUS GB312-200, G25 NL V2 - 7747005638 | — | — | — | |
| BUDERUS GB312-200, G25 V2 - 7747005634 | — | — | — |
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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