American Lube 3:1 Oil Pump

Reliable Design - Thunder pumps feature a patented, ice-free air motor contained in a rugged housing that is designed to withstand the harsh¬est working environments. ARO is so confident in this design that it is backed by a 5-year warranty.

Lube-Free Air Motor - The air valves and the piston are pre-lubri¬cated. Thunder pumps do not require an air line lubricator.

No Mechanical Assist - Thunder’s patented valve design uses no trip rods, push pins, or springs. Instead of one mechanical pilot valve in the air motor, Thunder has two independent 3-way spool valves which work together to change the direction of the pump piston.

In-Line Service - Thunder 3:1 pumps can be serviced in the tank or drum using just a standard wrench.

Fewer Parts - Thunder pumps are constructed with 50% fewer parts than the majority of comparable pumps. Fewer parts means less prob¬lems.

Cost-Effective Design - Most competitive pumps are too costly to repair after their warranty expires. Thunder’s revolutionary design, inex¬pensive rebuild kits, and field serviceability all add up to a pump that has the lowest cost of ownership in the lubrication equipment market.

Automatic Transmission Fluid

Gear Oil

Hydraulic Oil

Motor Oil

Synthetic Oil

Ratio . . . . . . . . . . . . . . . . . . . . . . . . . 3:1

Double-acting . . . . . . . . . . . . . . . . .Yes

Air Motor Diameter . . . . . . . . . . . . . . 2"

Stroke . . . . . . . . . . . . . . . . . . . . . . . . . 3"

Air Inlet . . . . . . . . . . . . . . . . . . . 1/4"(F)

Fluid Outlet . . . . . . . . . . . . . . . . 1/2"(F)

Fluid Inlet (stub) . . . . . . . . . . . . 3/4"(F)

Free Flow Rating . . . . . . . . . . . .9 GPM

Working Flow Rating . . . . . . . .6 GPM

Air Inlet Pressure . . . . . . . . . .0-150 PSI

Cycles Per Gallon . . . . . . . . . . . . . . .37

Noise Level @ 100 PSI . . . . . . . . 80 db

Gracco Fire-Ball 425 (3:1)
Air-Operated Piston Pump

The pump of choice for your most demanding high volume applications!

The Fire-Ball 3:1 is perfect for fluid oil transfer in high volume and longer distance applications such as truck shop service fleet facilities and in-plant applications.

• Corrosion-resistant design utilizes liquid salt nitriding, nickel plating, stainless steel, aluminum and chrome on key components for longer life
• Few moving parts in the air motor assembly means less downtime and low repair cost
• Displacement rods have minimal wear due to a proprietary Graco manufacturing process
• Large air porting design provides efficient use of compressed air supply for continuous pump operation without icing

American Lube
1/2"-2" Diaphragm Pumps