Graco Inc.

GL-1 Series Grease Injectors  Single Line Parallel Systems

High volume output at high pressures for the most demanding applications

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Custom fit your system with Graco's adjustable GL-1 series grease injectors. Designed to meet the needs of each lube point, these precision-honed systems provide years of reliable operation in the harshest operating environments.

Choose between the standard GL-1 or GL-1 HCP (High Corrosion Protection) models or for heavier duty applications that require higher output select between the GL-1 X or GL-1 XL.  

GL1 Injector Specs
Hauler_GL-1_Rear_view
  • The GL-1, GL-1 HCP, GL-1 X, and GL-1 XL injectors are offered both as a stand-alone and a replacement injector for manifold systems for easy customization to a variety of applications
  • Includes an adjustable hex head nut to make adjusting the ouput simple.
  • No vent holes and fully enclosed press fittings to prevent leaking lubricant
  • Convenient top-mounted cycle pin indicator for quick confirmation that the injector is functioning properly
  • Rugged, single piece uni-body design built for the harshest environments

GL-1 Injectors
Maximum operating pressure
3500 psi
241 bar24 MPa
Suggested operating pressure
2500 psi
172 bar 17 MPa
Reset pressure
600 psi
41 bar 4.1 MPa
Output volume per cycle
adjustable: 0.008 to 0.08 in³
adjustable: 0.008 to 0.08 in³
Wetted parts
carbon steel, stainless steel, copper, fluoroelastomer
carbon steel, stainless steel, copper, fluoroelastomer
Recommended fluids
N.L.G.I. #2 grease down to 32°F
N.L.G.I. #2 grease down to 0°C

GL-1 HCP (High Corrosion Protection) Injectors
Maximum operating pressure
3500 psi
24.1 MPa, 241 bar
Suggested operating pressure
2500 psi
17.2 MPa, 172 bar
Reset pressure
600 psi
4.1 MPa, 41 bar
Output volume per cycle
adjustable: 0.008 to 0.08 cubic inches
adjustable: 0.008 to 0.08 cubic inches
Wetted parts
carbon steel, stainless steel, fluoroelastomer
carbon steel, stainless steel, fluoroelastomer
Recommended fluids
N.L.G.I. #2 grease down to 32°F
N.L.G.I. #2 grease down to 0°C