Products

External Gear Pumps
Series GJ

Backed by a tradition of engineering and technological expertise, the Series GJ from Micropump delivers exceptional pumping performance for any high precision application. These compact, magnetically driven gear pumps feature a cavity style design with PTFE seals to ensure leak-free performance. With benefits like chemical resistance, abrasive fluids pumping and smooth, pulseless delivery, Series GJ pumps are available with a wide range of options, as well as in standard and OEM configurations.

Small Size
Leak-Free
Smooth, Pulseless Delivery
Chemically Resistant
Easy to Service
Proven Reliability
Advanced Pump Technology
Wide Range of Options
OEM Configurations
Enhanced Efficiency

Drive Options
Coming Soon

Documents	Model	PDF
Product Datasheet	Series GJ	857KB
Service Sheet P/N 5027	GJ-P25	95KB
Service Sheet P/N 5469	GJ-N21	96kB
Service Sheet P/N 5470	GJ-N23	106KB
Service Sheet P/N 5477	GJ-N21	93kB
Service Sheet P/N 5838	GJ-N25	95KB
Service Sheet P/N 6001	GJ-N23	88kB
Service Sheet P/N 6452	GJ-N21	90KB
Technical Specifications		135KB
Installation, Operation and Warranty Information P/N 7046		363KB

This data sheet is available to download as an Adobe PDF document.

Product Code

Prefix:
O/C = Order Code
S/K = Service Kit

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Performance Summary

Flow Rate
at 3450 rpm 3.2 L/min			0.85 gpm
Displacement
Gear Set	N21	N23	N25
ml/rev	0.316	0.64	0.91
Maximum Differential Pressure
5.6 Bar			80 psi
Maximum System Pressure
21 Bar			300 psi
Temperature Range
-46 to 121° C			-50 to 250° F
Viscosity Range
0.2 to 2500 cps
Maximum Speed
10,000 rpm

Pump Construction

Magnetic Drive Gear Pump
Cavity Style
Two Helical, Shafted Gears
Sleeve Bushings
PTFE Gaskets and Seals

Wetted Materials

Base Materials

316 Stainless Steel
Alloy 20
Titanium
Hastelloy C-276®
Hastelloy B-2®
Ceramics (Zirconia)

Gears

PPS
PEEK
PTFE
Nickel-Carbide

Static Seals

PTFE

Magnets

Driven & Driving
- Ferrite
- Rare Earth

Product Enhancements

Internal Bypass
Deck Ports
Tri-Clamp Fittings
Carbon Bushings

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SPECS FOR YOU?
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