The GRACO G15B73 is a Merkur Bellows piston pump package designed for air-assisted airless spray applications. It features a 15:1 ratio, U-Cup seal, cart mount, fluid filter, hoses, and a PerformAA 15 spray gun. The pump is constructed from 300 series stainless steel for durability and is intended for use with moisture-sensitive and shear-sensitive materials, including UV coatings and waterborne paints.

Key Features:

• Air-assisted airless piston pump package
• G15B73 (15:1 ratio)
• 300 series stainless steel
• Maximum fluid working pressure: 1500 psi (10.3 MPa, 103 bar); Maximum inlet air pressure: 100 psi (7 bar)
• Designed for use with moisture-sensitive and shear-sensitive materials, including UV coatings and waterborne paints
• Low maintenance with no seals exposed to the atmosphere
• Eliminates conventional throat seals for high reliability
• Easy-to-flush lower design for fast color changes and reduced material waste
• Simple air motor design with minimal parts for reduced repair time
• Reliable air valve for smooth and rapid changeover
• Cart mount for stable installation
• Includes fluid filter and hoses for integrated operation
• Compatible with PerformAA 15 spray gun

Applications:
Ideal for industrial and manufacturing environments requiring reliable, low-maintenance fluid delivery for moisture-sensitive or shear-sensitive coatings, such as UV coatings and waterborne paints. Suitable for applications where fast color changes and minimal downtime are important.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing equipment. Non-genuine parts may compromise system integrity and void warranties.
• Ensure all connections are secure and leak-free before operation
• Mount the pump securely on the provided cart for stability
• Use the included fluid filter to protect the pump and spray gun from contaminants
• Follow the manufacturer’s guidelines for hose routing and connection
• Regularly inspect and maintain seals and filters as recommended
• Flush the pump lower after each color change to reduce material waste and downtime
• Inspect and replace seals and filters according to the maintenance schedule
• Monitor air and fluid pressures to ensure safe and efficient operation
• Consult the manual for detailed maintenance procedures and troubleshooting