VO28D-4DO20 - Webster - VO28D-4DO20, Single Stage Pump

The Webster VO28D‑4DO20 Single Stage Fuel Pump is a high‑capacity oil pump from Webster’s V Series, engineered for commercial and industrial oil‑fired heating systems requiring high fuel flow with stable pressure regulation. Operating at 1725 RPM, this single‑stage pump delivers up to 115 GPH, making it ideal for large burners, boilers, and furnaces where volume and reliability are critical.

Designed with counter‑clockwise rotation and left‑hand nozzle configuration (CCW/L), the VO28D‑4DO20 supports flexible installation while maintaining smooth, consistent fuel delivery. Its single‑stage design provides efficient transfer for systems that do not require the added lift of a two‑stage pump, reducing complexity while maintaining performance.

The V Series is known for low mechanical noise, robust construction, and long service life in demanding heating environments. This model is rated for up to 190 PSI, offering dependable pressure control for high‑output burners. Built for use with No. 2 fuel oil and lighter fuels, the VO28D‑4DO20 is a trusted solution for professional HVAC technicians working on large‑scale heating applications.