The GRACO 15M530 is a compression spring assembly designed for use as a check valve spring in GRACO airless sprayers and mix manifolds. It is engineered to provide precise preload and reliable sealing under high fluid pressures. The spring is typically constructed from high-grade steel and is intended to ensure consistent valve operation and prevent backflow in sprayer systems.

Key Features:

• Compression spring
• 15M530
• Sustains spring rates for fluid pressures up to 4,000 psi (275 bar)
• Designed for GRACO airless sprayers and mix manifolds, including models referenced in GRACO technical manuals
• Precise preload for consistent valve operation
• Durable construction with over one million actuations before 5% load loss
• Engineered for rigorous service and long cycle life

Applications:
Used in GRACO airless sprayers and mix manifolds to maintain check valve function, prevent backflow, and ensure reliable sealing under high pressure in industrial and professional spray applications.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the equipment. Non-genuine parts may compromise system integrity and void warranties.
• Always follow GRACO equipment manuals for installation procedures
• Ensure the system is depressurized before replacing or installing the spring
• Inspect the spring and related components for wear or damage before installation
• Use appropriate tools and safety equipment during installation
• Regularly inspect the spring and check valve assembly for signs of wear or fatigue
• Replace the spring as part of routine maintenance or if performance issues arise
• Keep the system clean and free of debris to prevent premature wear