Webster M34DK-3, Single Stage Pump

The Webster M34DK-3 is a single-stage fuel oil pump designed for efficient fuel transfer and pressure regulation. Here are the key technical details:

• Model Number: M34DK-3
• Speed: 3450 RPM
• Rotation/Nozzle Location: Clockwise (CW) from shaft end
• Capacity: 3 GPH (Gallons Per Hour)
• Pressure Range: Factory set at 100 PSI, adjustable up to 150 PSI
• Porting:
  • 1/8” NPTF side location nozzle port
  • Top located gauge port
  • 1/4” NPTF with 2 inlets and bottom return
• Shaft: 5/16” diameter x 1.65” extension from mounting face with keyless “D” drive
• Seal: Double lip type Buna N
• Mounting: Two bolt flange
• Filter: Self-cleaning rotary type internal filter (external filter recommended)
• Weight: Approximately 4 lbs 2 oz (shipped oil-filled)
• Maximum Inlet Vacuum: 10” Hg for single-stage models

This pump is suitable for handling #1, #2 fuel oil or kerosene and is designed to maintain its 3 GPH fire size at pressures up to 150 PSI throughout its service life