Navien
Navien Gas Orifice NG 4.8/6.05 Part 20030523A
Natural gas orifice for Navien NPE-AWE and NPE-SWE CE-24 series condensing boilers, marked 4.8/6.05.
£4.08
£3.40 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 ORIFICE; GAS, NG, , 4.8_ 6.05 is a natural gas orifice supplied by Navien for use in its NPE-AWE and NPE-SWE CE-24 series condensing boilers. The orifice meters the gas flow into the burner, so its bore size directly governs the gas rate and the resulting combustion characteristics of the appliance. It carries the sizing reference 4.8 / 6.05 as stated in the product description.
Signs this part needs replacing
- Combustion readings outside the appliance's stated tolerances, such as an incorrect CO/CO2 ratio or unstable flame signal
- Burner failing to light reliably, or lighting and then dropping out shortly after ignition
- Visible sooting, discolouration or blackening around the burner or heat exchanger
- Sooting or debris blocking the orifice bore, restricting gas flow
- The orifice has been removed for service and the bore is damaged, scored or enlarged
Before you order
- Confirm the appliance model and gas type, as the orifice is specific to natural gas applications
- Check the sizing reference on the existing orifice against the 4.8 / 6.05 stated for this part
- Verify the boiler is a Navien NPE-AWE CE-24A or NPE-SWE CE-24S before ordering
- Gas-carrying components should be fitted and commissioned by a competent, registered engineer
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| NAVIEN NPE-AWE CE-24A - (Serial Number 5093) | — | — | — | |
| NAVIEN NPE-AWE CE-24A - (Serial Number 5093) | — | — | — | |
| NAVIEN NPE-SWE CE-24S - (Serial Number 5094) | — | — | — | |
| NAVIEN NPE-SWE CE-24S - (Serial Number 5094) | — | — | — |
Documents & drawings
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