2R181C-5BQ4 - Webster - Two Stage Pump

The Webster 2R181C-5BQ4 is a two-stage fuel oil transfer pump from the R Series, designed for reliable performance in heating and fuel transfer systems.

🔧 Technical Specifications

• Model: 2R181C-5BQ4
• Series: R Series
• Pump Type: Two-stage
• Flow Rate: 15 GPH @ 80 PSI
• Speed: 1725 RPM
• Rotation / Nozzle Port: Counterclockwise (CCW) from shaft end / Left side
• Maximum Pressure: 180 PSI
• Factory Set Pressure: 20 PSI
• Inlet/Outlet Ports: 1/4" NPTF
• Nozzle Port: 1/8" NPTF (side location)
• Vacuum Inlet: 15" Hg
• Shaft: 7/16" diameter x 3.69" extension, stepped to 5/16" at coupling end
• Mounting: Flange mount
• Filter: Self-cleaning rotary filter
• Seal Type: Double lip seals for reduced friction and leak protection  

⚙️ Key Features

• Self-Cleaning Rotary Filter: Reduces maintenance by preventing clogging.
• Two-Stage Operation: Enhances priming and lift, ideal for systems with long pipe runs or elevation differences.
• Durable Construction: Built for long service life in demanding environments.
• Factory Set for Two-Pipe Operation: With built-in pressure regulator and return ports.

This pump is commonly used in Webster SPM-15 series oil transfer pump sets.