RG4D Two-Stage Oil Burner

The RG4D is the larger two-stage light-oil burner Zhongli Weiye stocks and services as a compatible assembly, the top of this Gulliver-style range for boilers and ovens that need the most oil capacity on a high/low cycle. Its forced-draught fan and two-stage oil train follow the same commissioning routine as the smaller RG2D and RG3D, so a plant scaling up stays on familiar ground. We size the RG4D to the boiler's oil input and confirm the flange before supply. It is supplied as a compatible assembly, not a branded original. The RG4D closes out the top of the two-stage oil-burner range, the unit plants specify when no smaller RG step covers the boiler's peak oil input. Keeping it in the same Gulliver family means the site standardises on one oil-burner service skill across every capacity, from the RG2D up to the RG4D. On the bench the RG4D is the largest Gulliver oil body, rated around 150 to 350 kW on light oil with the same single-phase 230 V control box, so it is specified when a site has outgrown both the RG2D and RG3D and needs the top step. Its nozzle set spans the 3.0 to 6.0 USgal/h band. The head carries a heavier fan wheel and a larger air damper than the RG3D, giving the static pressure bigger boilers need at the burner throat. Because the RG4D sits at the ceiling of the family, most orders are capacity-upgrade replacements rather than first fitments.

Why buyers choose it

• The RG4D is a two-stage light-oil burner stocked and serviced by Zhongli Weiye as a compatible assembly, the larger Gulliver-style oil burner in this range.
• Fitment: Specified on light-oil boilers that need the top of the two-stage oil-burner range.