Oberdorfer N11500-S5 Bronze Gear Pump €“ 1.25€³ Viton Lip Seal
The Oberdorfer N11500-S5 is a premium bronze pedestal-style gear pump engineered for exceptional reliability and durability. Featuring corrosion-resistant bronze housings and gears with a sturdy 303 stainless steel shaft, this pump handles clean fluids including water, oil, and light chemical solutions with ease. Designed as a positive-displacement rotary gear pump, each revolution delivers consistent flow proportional to shaft speed, making it ideal for industrial and marine applications that demand precise fluid transfer.
Equipped with a Viton (FKM) lip seal, the N11500-S5 enhances sealing performance while reducing friction and wear. Its self-priming capabilities can lift up to 20€¯feet on the suction side for versatile installation options. The self-lubricating carbon-graphite bearings support long service life and low maintenance, while the 1.25€³ FNPT inlet and outlet ports ensure strong compatibility with standard piping systems. Whether youre replacing worn equipment or upgrading to a robust gear pump, the N11500-S5 delivers dependable performance in demanding environments.
Key Features
- Bronze corrosion-resistant castings for long life
- 1.25€³ NPT inlet and discharge ports
- Viton (FKM) lip seal for superior chemical resistance
- 303 stainless steel shaft and fasteners
- Self-lubricating carbon-graphite bearings
- Positive displacement rotary gear design
- Self-priming up to 20€¯ft suction lift
- Pedestal mount, bare shaft pump (motor not included)
Applications
- Industrial fluid transfer and circulation
- Water service, oil systems, and mild chemical pumping
- Marine fluid handling and auxiliary systems
- HVAC and chiller systems
- Sprinkler and irrigation setups
- Replacement pump end for OEM equipment
Specifications
- Model: Oberdorfer N11500-S5
- Pump Type: Bronze pedestal gear pump
- Port Sizes: 1.25€³ FNPT inlet & discharge
- Seal: Viton (FKM) lip seal
- Max Flow: approx. 60€¯GPM (varies with speed)
- Self-Priming: Yes (up to 20€¯ft suction)
- Shaft: 303 stainless steel
- Bearings: carbon-graphite, self-lubricating
- Construction: Bronze gears and housing
- Duty: Continuous on lubricating liquids
FAQ
Q: What does the part number N11500-S5 represent?
A: It denotes a bronze pedestal gear pump variant with Viton (FKM) lip seal and 1.25€³ ports, optimized for industrial fluid handling.
Q: Can the N11500-S5 handle viscous liquids?
A: It performs best with clean, lubricating fluids; viscous or abrasive liquids may reduce performance and service life.
Q: Is a motor included with this pump?
A: No €” this model is sold as a bare shaft pump end only ready for motor or engine coupling.
Q: What is the maximum suction lift?
A: Up to approximately 20€¯feet when properly primed.
Q: Is the pump suitable for marine or industrial use?
A: Yes €” its bronze construction and self-priming design make it versatile for both marine and industrial applications.
CLRMarine
