The GRACO 108639 is a PTFE (polytetrafluoroethylene) ball, designed as a replacement part for use within GRACO air-operated diaphragm pumps. PTFE is chosen for its chemical resistance and durability, making this ball suitable for handling a wide range of fluids in industrial applications.

Key Features:

• PTFE Ball
• PTFE (polytetrafluoroethylene)
• Compatible with GRACO air-operated diaphragm pumps, such as Husky 515/716 HD models
• Chemical resistance
• Durability
• Low friction
• Smooth operation within pump valve assemblies

Applications:
Used as a replacement part in GRACO air-operated diaphragm pumps for transferring various fluids in industrial, mining, and agricultural settings.

Installation Notes:

• Using genuine GRACO parts ensures optimal pump performance, reliability, and longevity.
• Refer to the specific pump manual for detailed installation instructions.
• Ensure the pump is depressurized and isolated from fluid and air supplies before replacing the ball.
• Inspect the valve seat and other related components for wear or damage during replacement.
• Use appropriate tools and follow torque specifications as outlined in the manual.
• Regularly inspect PTFE balls and valve seats for wear or damage.
• Replace worn or damaged balls promptly to maintain pump efficiency and prevent leaks.
• Follow the recommended maintenance schedule in the equipment manual.