Graco Inc.

GL-33 Grease Injectors  High Performance Injectors

Accurate, reliable lubrication for every lube point on your machine

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Choose durable, long-lasting Graco injectors to perform your lubrication automatically
and minimize downtime and maintenance costs. Graco's GL-33 grease injector systems are easy to design, fast to set up and allow you to add or subtract lube points without having to redesign your lubrication system.

  • Seven outlet fitting sizes available
  • Convenient front-mounted visual indicator pin
  • One-Piece, Machined Body provides exceptional durablity
  • Longer lasting seal design for trouble-free performance
  • Precision-honed components for reliable operation in challenging environments
  • Adjustable output volume from .001–.003 cubic inches (0.02–0.05 cm3)
  • Operating pressures from 1200-3500 psi (83-241 bar) for optimal performance with up to NLGI #2 grease
  • Offered both as a stand-alone injector and replacement injector for manifold systems, allowing you to custom fit the injectors to your applications

GL-33 Grease and GL-42 Oil Injectors
U.S.
Metric
Oil Models
Maximum Operating Pressure
1000 psi
6.89 MPa, 68.9 bar
Minimum Operating Pressure
750 psi
5.17 MPa, 51.7 bar
Suggested Operating Pressure
850 psi
5.86 MPa, 58.6 bar
Reset Pressure
150 psi
1.03 MPa, 10.3 bar
Output Volume per Cycle
adjustable: 0.001 - 0.003 in.³
adjustable: 0.016 - 0.049 cc
Wetted Parts
carbon steel, stainless steel, fluoroelastomer
carbon steel, stainless steel, fluoroelastomer
Recommended Fluids
Minimum SAE 10 weight oil*
Minimum SAE 10 weight oil*
Grease Models
Maximum Operating Pressure
3500 psi
24 MPa, 241 bar
Minimum Operating Pressure
1200 psi
8.3 MPa, 83 bar
Suggested Operating Pressure
1500 psi
10.3 MPa, 103.4 bar
Reset Pressure
200 psi
1.4 MPa, 14 bar
Output Volume per Cycle
adjustable: 0.001 - 0.003 in.³
adjustable: 0.016 - 0.049 cc
Wetted Parts
carbon steel, stainless steel, fluoroelastomer
carbon steel, stainless steel, fluoroelastomer
Recommended Fluids
Grease N.L.G.I. grades #000 - #2*
Grease N.L.G.I. grades #000 - #2*
*Only use fluids appropriate for your application, automatic dispensing and the equipment’s operating temperature. Consult with machine and lube manufacturer for details