Oberdorfer N11HDM Bronze Gear Pump €“ 1-1/4" Ports, 60 GPM
The Oberdorfer N11HDM gear pump is a high-performance bronze positive displacement pump designed for reliable fluid transfer across a wide range of industrial and commercial applications. Built with precision-machined bronze gears and a stainless steel shaft, the N11HDM delivers consistent flow rates up to 60 GPM while maintaining durability in demanding environments. Its mechanical Buna (NBR) seal ensures dependable sealing performance for water, oils, and compatible chemicals.
Engineered for efficiency, the N11HDM operates as a self-priming gear pump capable of handling suction lifts up to 20 feet, making it ideal for systems where consistent fluid movement is critical. The pumps robust carbon graphite bearings provide long service life with minimal maintenance, while the outboard ball bearing support enhances stability during operation.
Whether used in fuel transfer, water circulation, or industrial processing systems, the Oberdorfer N11HDM stands out for its reliability, versatility, and proven performance. Designed as a pedestal-style pump end, it allows flexible integration into custom drive systems, making it a trusted choice across multiple industries.
Key Features
- Bronze construction for corrosion resistance
- Stainless steel shaft for durability
- Buna (NBR) mechanical seal for reliable sealing
- Self-priming up to 20 ft suction lift
- Positive displacement design for consistent flow
- Outboard ball bearing support
- Carbon graphite bearings for long life
- Handles viscosities up to 50,000 SSU
Applications
- Diesel fuel transfer systems
- Oil and lubricant circulation
- Water and wastewater handling
- HVAC and cooling systems
- Irrigation and sprinkler systems
- Industrial fluid processing
- Municipal water systems
- Effluent sampling and fluid transfer
Specifications
- Model: N11HDM
- Flow Rate: Up to 60 GPM
- Port Size: 1-1/4" NPT inlet and outlet
- Max Pressure: Up to 150 PSI (oil)
- Material: Bronze housing and gears
- Shaft Material: Stainless Steel
- Seal Type: Mechanical (Buna/NBR)
- Max Speed: 1750 RPM
- Pump Type: Rotary Gear / Positive Displacement
- Configuration: Pedestal (no motor)
FAQs
1. What type of fluids can the N11HDM pump handle?
It is designed for clean, non-abrasive fluids such as water, oils, diesel fuel, and mild chemicals within a compatible pH range.
2. Is the Oberdorfer N11HDM suitable for continuous duty?
Yes, when properly installed and operated within recommended pressure and speed limits, it is suitable for continuous operation.
3. Does the N11HDM include a motor?
No, this model is a pedestal pump end only and requires an external motor or drive system.
4. Can this pump handle viscous liquids?
Yes, but higher viscosity fluids require reduced operating speeds to maintain performance and longevity.
5. What maintenance is required for the N11HDM?
Routine inspection, proper alignment, and ensuring clean fluid operation will maximize lifespan and performance.
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