
Micropump 81980 Pumphead
Micropump 81980 GJ-N21.PF1S.A magnetic drive gear pumphead with PPS carbon fiber/PTFE gears, 316 stainless steel base and shaft, 1/8-inch FNPT ports and 5500 RPM max speed.
The Micropump 81980 GJ-N21.PF1S.A Pumphead is a compact GJ Series magnetic drive gear-pump end developed for high-precision fluid-handling applications.
This exact configuration uses PPS carbon-fiber/PTFE-filled gears with a 316 stainless-steel base and shaft. The GJ Series uses cavity-style positive-displacement technology to provide smooth, pulseless liquid delivery.
Micropump 81980 Specifications
- Manufacturer: Micropump
- Part Number: 81980
- Model: GJ-N21.PF1S.A
- Series: GJ
- Product Type: Magnetic Drive Gear Pumphead
- Gear Material: PPS, Carbon Fiber / PTFE Filled
- Base Material: 316 Stainless Steel
- Shaft Material: 316 Stainless Steel
- Inlet: 1/8-27 FNPT Side Port
- Outlet: 1/8-27 FNPT Side Port
- Maximum Speed: 5500 RPM
- Maximum System Pressure: 300 PSI
- Maximum Listed Temperature: 130°F
N21 Displacement Class
The GJ N21 gear set is the smallest standard GJ displacement class at approximately 0.316 mL/rev, making it suitable for precise low-flow applications when paired with an appropriate drive and operating speed.
Key Features
- Compact GJ Series magnetic-drive pumphead
- Precision positive-displacement operation
- PPS gear construction
- 316 stainless-steel base and shaft
- 1/8-inch FNPT side ports
- 300 PSI maximum system-pressure class
Selection Notes
Verify pump drive compatibility, fluid compatibility and the required GJ-N21 operating point before installation.
| Brand | Micropump |
|---|---|
| Product Type | Pump |
| Max Temperature | 130?F |
| Max Pressure | 300 psi |
| Speed | 5500 rpm |
| Micropump Series | GJ |
