The GRACO Fire-Ball® 425 Series is a high-capacity grease pump designed for demanding, high-volume lubrication applications. It features a robust cast aluminum air motor housing and is engineered for long pipe runs and multiple dispensing points. The pump is intended for use in industrial and vehicle service environments where reliable, high-volume grease delivery is required.

Key Features:

• Grease pump
• Fire-Ball® 425 Series 75:1, 120 lb. (54 kg) capacity
• Thick cast aluminum air motor housing, corrosion-resistant components (liquid salt nitriding, nickel plating, stainless steel, aluminum, chrome)
• Air operating range: 40–100 psi (2.8–7 bar, 0.3–0.7 MPa)
• Designed for use with NLGI #1 grease and compatible with multiple dispense points
• Large air motor for high power and long pipe runs
• Fewer moving parts for reduced downtime and lower repair costs
• Non-metallic poppet valves for superior sealing in dirty air environments
• In-line pump design maximizes seal life
• Corrosion-resistant construction for extended service life

Applications:
Ideal for high-volume grease dispensing in industrial, mining, agricultural, and vehicle service applications where multiple dispensing points or long pipe runs are required.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing systems.
• Ensure the pump is mounted securely on a stable surface
• Connect air supply within the specified pressure range (40–100 psi)
• Use recommended grease types (NLGI #1)
• Regularly inspect and maintain seals and valves for optimal performance
• Follow manufacturer guidelines for installation and maintenance
• Perform routine maintenance checks to prevent downtime
• Keep the air supply clean and dry to protect internal components
• Replace worn or damaged parts with genuine GRACO components