The GRACO 563053 is a soft seat single ball check valve designed for use in GRACO pumps and fluid handling systems. It features a stainless steel (SST) body and a Viton ball, providing reliable sealing and resistance to harsh chemicals. Its primary function is to prevent reverse flow and ensure unidirectional fluid movement within GRACO equipment.

Key Features:

• Check Valve
• 9/16-20 SAE
• Stainless Steel (SST) Body, Viton Ball
• Maximum Working Pressure: 75 psi (5 bar); Maximum Cracking Pressure: 43 psi (0.31 MPa); Burst Pressure: 7500 psi (noted on some listings, but likely refers to a different specification or is a typographical error—typical check valves do not have such high burst pressures; confirm with manufacturer for intended use)
• Designed for GRACO pumps and compatible with systems using 9/16-20 SAE fittings
• Soft seat for optimum sealing against reverse flow
• Single ball design for reliable operation
• Tapered outlet end to help identify flow direction
• Durable construction for long service life

Applications:
Used in GRACO pumps and fluid handling systems where prevention of reverse flow and reliable sealing are required, such as in lubrication, paint, and chemical transfer applications.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of your equipment.
• Ensure the valve is installed in the correct orientation (tapered end indicates flow direction)
• Use appropriate tools to avoid damaging threads
• Inspect for leaks after installation
• Regularly check for wear and replace as needed to maintain system integrity