The GRACO 563205 is a double ball check valve designed for use in high-pressure lubrication and hydraulic systems. It is constructed from stainless steel and is intended to ensure reliable, one-way flow control within GRACO pump equipment.

Key Features:

• Double Ball Check Valve, Twin Tandem
• 509-356-100 (also referenced as 563205), 1/4" NPTF (M) x 1/4" NPTF (M)
• Stainless steel
• Nominal cracking pressure: 45 PSI; Maximum working pressure: 10,000 PSI
• Designed for use with GRACO pump equipment and compatible with high-pressure lubrication and hydraulic systems
• Double ball design for enhanced reliability and leak prevention
• Twin tandem configuration for robust flow control
• Stainless steel construction for durability and corrosion resistance
• High-pressure capability suitable for demanding industrial environments

Applications:
Used in high-pressure lubrication and hydraulic systems, particularly within GRACO pump equipment, to ensure one-way flow and prevent backflow.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and compatibility with GRACO equipment.
• Ensure threads are clean and undamaged before installation
• Use appropriate thread sealant or tape as recommended by GRACO
• Tighten to the manufacturer’s specified torque to prevent leaks and ensure proper sealing
• Regularly inspect for wear or damage and replace as needed to maintain system integrity