Graco Inc.

Manzel GBL 7500 

Compressor Lubrication Pump

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Graco offers three vigorously tested models engineered for long-life and maximum flexibility for easy system integration. Each model has been improved to perform in best-practice applications for a durable solution that is hard to beat. Product offering includes Suction, Gravity, Pressure and Alarm pumps.

  • Mechanically driven from camshaft in reservoir. 
  • Adjustable from 1 to 27 drops per stroke and develop pressures up to 7,500 psi.
  • Rugged construction for high quality performance and durability with easy to adjust pump output.
  • 1/4" NPT inlet to improve flow in high viscosity, cold environments.
  • Double Ball Outlet Check reduces ball travel.
  • Improved o-ring seals to eliminate leak paths.
  • Patent pending Built-in-Socket spreads force evenly over piston tip to avoid bending and wear for long piston and rocker life. 
  • Ball bearing roller has superior rotation to help protect camshaft from damage. Larger diameter roller spreads load pressure to reduce wear and improve pump life. 

Suction, Gravity Pressure Fed Box Lubricator Pump or Shaft Rotation Alarm Pump
Temperature Rating
-20°F to 140F°
-29°C to 60°C
Wetted Parts
carbon steel, stainless steel, aluminum, PTFE, Fluoroelastomer, pyrex
carbon steel, stainless steel, aluminum, PTFE, Fluoroelastomer, pyrex
See instruction manual.
See instruction manual.
Maximum Working Pressure
All 3/16" Piston Models
7500 psi
51.7 MPa, 517 bar
All 1/4" Piston Models
6000 psi
41.4 MPa, 414 bar
All 3/8" Piston Models
3500 psi
24.1 MPa, 241 bar
Alarm Pump*
1.4 PMa, 14 bar
Inlet Size
Gravity Fed Models
1/8" - 27 NPTF
1/8" - 27 NPTF
Pressure Fed Models
1/4" - 18 NPTF
1/4" - 18 NPTF
Outlet Size (Suction, Gravity, Pressure Fed Models)
1/8" - 27 NPTF
1/8" - 27 NPTF
Suction Models
2.6 lbs
1.18 kg
Gravity Models
2.7 lbs
1.22 kg
Pressure Models
2.7 lbs
1.22 kg
Alarm Pump
4.8 lbs
2.18 kg
* Sensor output will open at 100-200 psi (0.68 MPa, 6.89 bar).