The GRACO 25R647 is a mechanical low shear fluid back pressure regulator designed to control upstream fluid pressure in paint circulation systems. Constructed from stainless steel (SST) with high-wear, sanitary inlet/outlet connections, it is engineered to minimize paint shear and degradation, ensuring consistent finish quality in industrial finishing applications.

Key Features:

• Mechanical (Spring) Back Pressure Regulator
• 25R647
• Stainless Steel (SST), High Wear, Sanitary Inlet/Outlet
• 5–25 gpm (19–95 lpm)
• Up to 300 psi (Max)
• Compatible with GRACO fluid circulation systems and similar industrial finishing equipment
• Low shear flow path geometry minimizes paint degradation
• High-wear, sanitary construction for durability and easy cleaning
• Best-in-class performance maintains constant pressure with changing flow rates
• Ultralife series ceramic coated seat and flow directors for increased wear resistance and service life
• Reliable mechanical (spring) operation for consistent pressure control

Applications:
Used in industrial paint circulation systems to maintain consistent upstream pressure, minimize paint shear, and ensure uniform finish quality in automotive, aerospace, and general manufacturing finishing processes.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with existing systems.
• Ensure proper alignment of inlet and outlet connections
• Follow manufacturer’s torque specifications for sanitary fittings
• Inspect and clean regulator components regularly to prevent contamination and maintain performance
• Verify system pressure and flow rates before and after installation
• Regularly inspect for wear and replace components as needed
• Use only compatible fluids and cleaning agents
• Consult the equipment manual for specific installation and maintenance procedures