238108 – Fireball 425 6:1 Oil Pump



Fire-Ball® 425 Series 6:1 Universal Size Oil Pump

Part Number: 238108

With a large 4.25 inch (107.9 mm) air motor to supply the power you need for long pipe runs and higher volume dispensing, the Fire-Ball 425 delivers field-proven durability for multiple fluid types and exceptional cost savings that are hard to beat!

The Fire-Ball 425 is the pump of choice for your most demanding high volume applications – an ideal choice for applications such as truck fleet service facilities and in-plant applications where multiple dispenses happen at the same time.

  • Durable – Thick cast aluminum air motor housing offers unmatched durability.
  • Fewer Repairs – Fewer moving parts in the air motor assembly means less downtime and low repair cost.
  • Extended Seal Life – In-line pump design aligns the air motor piston and fluid piston rods to maximize seal life.
  • Reduce Downtime – Displacement rods have minimal wear due to a proprietary Graco manufacturing process.
  • Superior Sealing – Non-metallic poppet valves offer positive sealing performance, even with contaminated “dirty” air environments for long life without repair.
  • Reduced Icing – Large air porting design provides efficient use of compressed air supply for continuous pump operation and reduced icing.
  • Corrosion-Resistant – Corrosion-resistant design utilizes liquid salt nitriding, nickel plating, stainless steel, aluminum and chrome on key components for longer life.

Technical Specifications


Air Inlet Size (in) 0.5
Air Inlet Thread Gender Female
Air Inlet Thread Type NPT
Air Motor Effective Diameter (in) 4.25
Application Industrial
Compatible Material Oil
Construction Steel, Polyurethane, Aluminum, Nitrile
Cycles Per Gallon 12
Fluid Inlet Size (in) 1-1/2
Fluid Inlet Thread Gender Female
Fluid Inlet Thread Type NPT
Fluid Outlet Size (in) 3/4
Fluid Outlet Thread Gender Female
Fluid Outlet Thread Type NPT
For Use With Petroleum- and synthetic-based oils (motor, gear and ATF)
Maximum Air Inlet Pressure (psi) 180
Maximum Continuous Cycle Rate (CPM) 66
Maximum Intermittent Cycle Rate (CPM) 66
Maximum Working Pressure (MPa) 7.6
Maximum Working Pressure (psi) 1100
Model Fire-Ball
Power Type Pneumatic
Pump Ratio 6:1
Series 425
Sound Pressure Level (dB(A)) 79.5
Type Pneumatic Piston Pump
Weight (lb) 35