Webster - Oil Pump, Single Stage, M34DM-3 Bio

Webster M34DM-3 single-stage Bio fuel unit, 3450 RPM.

Engineered for efficient pumping of bio fuel, the M34DM-3 retains the features of the M34DK-3 – faster fuel cut-off and improved priming on single-pipe installations – with a thickened cleaner blade and all BUNA-N elastomers replaced with VITON for extended life. It easily replaces a standard M34D or A2VA residential pump.

Features

• Side-located bleed port plug assembly – bleed the unit or change the bypass plug without removing the burner
• Thickened rotary cleaner blade for more robust cleaning action
• VITON shaft seal and VITON seals throughout
• Keyless "D" drive shaft
• Maintains 3 GPH fire size at up to 150 PSI throughout its design life

Product Details

• Model: M34DM-3
• Brand: Webster
• Series: M Series
• Type: Single Stage Bio Fuel Unit
• Fuels: #1, #2 fuel oil, kerosene, B5–B100 biodiesel
• Firing Capacity: Up to 3 GPH fire size @ 100–150 PSI
• Gear Capacity: 25 GPH @ 100–150 PSI
• Pressure: Factory set 100 PSI, adjustable to 150 PSI
• Speed: 3450 RPM
• Rotation (viewed from shaft end): Clockwise, nozzle port right (D Style)
• Porting: 1/8" NPTF side nozzle port; 1/8" NPTF top gauge port; 1/4" NPTF inlets and return
• Shaft: 5/16" dia. x 1.65" extension, keyless "D" drive
• Mounting: Two-bolt flange
• Max. Inlet Vacuum: 10" Hg
• Max. Inlet Pressure: 3 PSIG (NFPA 31)
• Weight: 4 lbs 2 oz (shipped oil-filled)