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OBN991 | Bronze Gear Pump Buna Lip Seal | (N991)

Art. No.: ob_obn991

Key Features:

Material: Bronze housing, stainless steel shaft
Port Size: 1/4" NPT
Seal Type: Buna (NBR) lip seal (standard); FKM, PTFE, and mechanical seals optional
Max Pressure: 150 PSI (lubricants), 100 PSI (non-lubricants)
Max Speed: 1750 RPM
Temperature Range: Up to 212°F with NBR seal (higher with optional seals)
Bearings: Carbon graphite, self-lubricating
Mounting: Close-coupled for direct motor attachment
Suction Lift: Up to 20 feet
Drive Options: Compatible with AC and DC motors; adapter kits available

Lead times temporarily extended to 20 weeks.

$471.00

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The OBN991 is a bronze close-coupled rotary gear pump designed for compact and reliable fluid transfer in industrial, marine, and OEM applications. Featuring 1/4" NPT ports and a Buna (NBR) lip seal, this positive displacement pump ensures consistent flow and pressure with excellent corrosion resistance.

Constructed with bronze housing, stainless steel shaft, and carbon graphite bearings, the OBN991 is optimized for long service life and quiet operation. Its compact design allows for easy integration with a variety of motor frames, making it ideal for space-constrained installations.

Recommended Applications:
Ideal for transferring oils, lubricants, and compatible chemicals in marine, industrial, and OEM systems requiring compact, corrosion-resistant, and pressure-stable performance. Not recommended for abrasive or solid-laden fluids.

Recommended Parts

Repair Kit N991 991 Less Gasket | (OB10640)

OBN991 | Bronze Gear Pump Buna Lip Seal | (N991)

OBN991 | Bronze Gear Pump Buna Lip Seal | (N991)

$471.00