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OBN4000RS3 | Bronze Pedestal Gear Pump, Relief, Buna | (N4000)

Art. No.: ob_obn4000rs3

Key Features:

Material: Bronze housing, stainless steel shaft
Port Size: 1/2" NPT
Seal Type: Buna (NBR) lip seal
Relief Valve: Built-in, factory set at 50 PSI
Max Pressure: 150 PSI (lubricants), 100 PSI (non-lubricants)
Max Speed: 1750 RPM
Temperature Range: -40°F to 212°F
Bearings: Carbon graphite, self-lubricating
Mounting: Pedestal base, flexible coupling or pulley drive

Lead times temporarily extended to 32 weeks.

$823.41

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The OBN4000RS3 is a bronze pedestal-mounted rotary gear pump designed for reliable fluid transfer in industrial and marine applications. Featuring 1/2" NPT ports and a built-in relief valve (factory set at 50 PSI), this positive displacement pump delivers consistent flow and pressure protection. It includes a Buna (NBR) lip seal, stainless steel shaft, and self-lubricating carbon bearings for long service life.

The pump is capable of suction lifts up to 20 feet and operates across a wide temperature range from -40°F to 212°F. It is ideal for clean, lubricating fluids compatible with bronze and stainless steel.

Recommended Applications:
Ideal for transferring lubricants, oils, and compatible chemicals in marine, industrial, and OEM systems requiring robust, pressure-protected performance.

Recommended Parts

Repair Kit N4000, 4000, R, S3 | (OB11387)

OBN4000RS3 | Bronze Pedestal Gear Pump, Relief, Buna | (N4000)

OBN4000RS3 | Bronze Pedestal Gear Pump, Relief, Buna | (N4000)

$823.41