The GRACO 107228 is a U-cup packing made from buna-N (nitrile rubber), designed to provide a reliable seal within GRACO pump assemblies. It is intended to prevent fluid leakage and maintain optimal performance in various GRACO fluid handling equipment.

Key Features:

• U-cup packing
• Buna-N (nitrile rubber)
• Compatible with select GRACO pump models (see documentation for specific models)
• Provides a reliable seal to prevent fluid leakage
• Designed for easy installation and maintenance
• Supports optimal pump performance and longevity

Applications:
Used in GRACO pump assemblies for sealing and preventing fluid leakage in fluid transfer and lubrication systems.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, performance, and equipment longevity.
• Ensure the lips of the U-cup packing face the correct direction (typically up or down depending on the pump model—consult the manual for specific orientation)
• Leave the packing nut loose until the displacement rod is installed
• Tighten the packing nut just enough to prevent leaking; overtightening can damage the packing
• Insert the displacement rod from the top of the outlet housing to prevent shearing of the packings