Description
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 errortypical 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






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