The GRACO 172391 SPACER, PISTON is a component designed for use within GRACO Fast-Flo pump assemblies. It is typically made from PTFE (polytetrafluoroethylene), a material known for its chemical resistance and durability. The spacer is used to maintain proper alignment and spacing of piston components within the pump, ensuring smooth operation and reducing wear on moving parts.

Key Features:

• Piston Spacer
• PTFE (polytetrafluoroethylene)
• Compatible with GRACO Fast-Flo pump models (e.g., 215953, 215956)
• Chemical resistance due to PTFE construction
• Designed for durability and long service life
• Helps maintain proper piston alignment and spacing
• Reduces wear on pump components

Applications:
Used in GRACO Fast-Flo pump assemblies for various industrial and maintenance applications, including lubrication and fluid transfer in mining, agriculture, and manufacturing environments.

Installation Notes:

• Using genuine GRACO parts ensures optimal pump performance, reliability, and safety. Non-genuine parts may compromise equipment integrity and void warranties.
• Ensure all pump components are clean and free from debris before installation
• Follow the equipment manual for specific installation procedures
• Check for proper alignment of the piston and spacer during assembly
• Torque fasteners to manufacturer specifications (e.g., 31–33 N•m as referenced in related manuals)
• Inspect for leaks and proper operation after installation
• Regularly inspect the spacer and surrounding components for wear or damage
• Replace the spacer as part of routine maintenance or if signs of degradation are observed
• Use only recommended lubricants and cleaning agents compatible with PTFE