The GRACO 104749 RING, BACKUP is a replacement backup ring designed for use in GRACO equipment. Its material is not specified in available sources, but similar GRACO backup rings are commonly made from PTFE (polytetrafluoroethylene). The part is intended to provide sealing and support within GRACO proportioning pumps or related systems, helping to prevent leaks and maintain operational integrity.

Key Features:

• Backup Ring
• Designed for use with GRACO equipment, particularly proportioning pumps
• Provides sealing and support within pump assemblies
• Helps prevent leaks and maintain system integrity
• Replacement part for maintenance and repair

Applications:
Used in GRACO proportioning pumps and related fluid handling systems for sealing and backup support.

Installation Notes:

• Using genuine GRACO backup rings ensures proper fit, performance, and longevity of the equipment, reducing the risk of leaks and downtime.
• Always refer to the specific equipment manual for installation instructions
• Ensure the system is depressurized before replacing the backup ring
• Inspect the mating surfaces for wear or damage before installation
• Use appropriate tools to avoid damaging the backup ring during installation