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 Instruction Sheet
p/n 5469 rev G 		GJ-N21
(PTFE A/B-mount) 		232 KB
Service Instruction Sheet
p/n 5477 rev D 		GJ-N21
(PTFE C-mount)		 219 KB
Service Instruction Sheet
p/n 6452 rev E 		GJ-N21
(PPS A/B mount) 		209 KB
Service Instruction Sheet
p/n 5470 rev F
GJ-N23
(PTFE)
197 KB
Service Instruction Sheet
p/n 6001 rev D
GJ-N23
(PPS A/B mount)
196 KB
Service Instruction Sheet
p/n 5838 rev E
GJ-N25
 228 KB
Service Instruction Sheet
p/n L21300 rev F
GJ-N27
 212 KB
Service Instruction Sheet
p/n 5027 rev C
GJ-P25
109 KB
Technical Specifications   534 KB
Installation, Operation and Warranty Manual
p/n 7046 		  363 KB

 

This data sheet is available to download as an Adobe PDF document.
Product Code
Prefix:
O/C = Order Code
S/K = Service Kit

 

G J –            
Performance Summary
Flow Rate  
at 3450 rpm
3.2 L/min		 0.85 gpm
Displacement  
Gear Set   N21 N23 N25 N27
ml/rev   0.316 0.64 0.91 1.23
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®
  • Gears
    • PPS
    • PEEK
    • PTFE
  • Static Seals
    • PTFE
    • Viton®
Magnets
  • Driven & Driving
    • Ferrite
    • Rare Earth
Product Enhancements
  • Internal Bypass
  • Deck Ports
  • Tri-Clamp Fittings

 

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SPECS FOR YOU?
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