The GRACO 225773 is a pneumatic grease pump designed for industrial use, constructed primarily from durable cast aluminum and corrosion-resistant materials. It is intended for reliable, accurate dispensing of non-corrosive and non-abrasive greases and lubricants in professional settings.

Key Features:

• Pneumatic grease pump
• Fire-Ball® 300 Series 50:1, 35/50 lb. (16 to 23 kg) pail
• Thick cast aluminum air motor housing, corrosion-resistant components (liquid salt nitriding, nickel plating, stainless steel, aluminum, chrome)
• Maximum air working pressure: 140 psi (0.97 MPa); Maximum working pressure: 5,000 psi (35 MPa)
• Non-corrosive and non-abrasive greases and lubricants
• 3-inch differential air motor for smooth pumping
• Double-acting pump design for reliable fluid flow and accurate dispense
• Fewer moving parts for reduced downtime and low repair cost
• In-line pump design maximizes seal life
• Displacement rods with minimal wear due to proprietary manufacturing
• Non-metallic poppet valves for superior sealing, even in dirty air environments
• Large air porting design reduces icing and ensures efficient compressed air use
• Corrosion-resistant design for longer life

Applications:
Industrial grease dispensing, vehicle service, maintenance, and lubrication applications where reliable, high-pressure grease delivery is required.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and safety, and helps maintain warranty and performance standards.
• Use a 3/8 in (9.5 mm) air regulator (part 109075), which must be ordered separately
• Ensure all connections are secure and use compatible fittings (NPT threads)
• Follow all safety instructions in the manual to prevent unsafe operating conditions, component rupture, or injury
• Regularly inspect and maintain the pump to extend its service life