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OBN991-F41 | Bronze Gear Pump and Motor Unit, 1/3Hp 1Ph 115V 1725 Rpm | (N991)

Art. No.: ob_obn991-f41

Key Features:

Pump Material: Bronze housing and gears, stainless steel shaft
Port Size: 1/4" NPT
Seal Type: Buna (NBR) lip seal (standard); mechanical seals optional
Motor: 1/3 HP, 1-phase, 115V, 1725 RPM
Max Pressure: 150 PSI (lubricants), 100 PSI (non-lubricants)
Max Speed: 1750 RPM
Temperature Range: Consult factory for seal-specific limits
Bearings: Carbon graphite, self-lubricating
Mounting: Close-coupled motor unit
Suction Lift: Up to 20 feet (when primed)
Flow Rate: Approx. 1.8 GPM at 50 PSI

Lead times temporarily extended to 32 weeks.

$1,234.57

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The OBN991-F41 is a compact, close-coupled bronze rotary gear pump system powered by a 1/3 HP, single-phase 115V motor operating at 1725 RPM. Designed for OEM, marine, and light industrial applications, this unit delivers reliable, consistent fluid transfer with excellent corrosion resistance.

The N991 pump features a bronze housing and gears, stainless steel shaft, and carbon graphite bearings for long-lasting, quiet operation. It includes a Buna (NBR) lip seal as standard and is ideal for clean, non-abrasive fluids compatible with bronze.

Recommended Applications:
Ideal for transferring oils, lubricants, and compatible chemicals in compact systems requiring corrosion-resistant, pressure-stable performance. Suitable for marine cooling, fuel transfer, and light industrial fluid handling.

Recommended Parts

Repair Kit N991 991 Less Gasket | (OB10640)

OBN991-F41 | Bronze Gear Pump and Motor Unit, 1/3Hp 1Ph 115V 1725 Rpm | (N991)

OBN991-F41 | Bronze Gear Pump and Motor Unit, 1/3Hp 1Ph 115V 1725 Rpm | (N991)

$1,234.57