The GRACO 17Z673 is a backup ring made from Buna-N (Nitrile) rubber, designed to support and protect O-rings in GRACO equipment, particularly in sanitary pump assemblies. Its primary function is to prevent extrusion and damage to the O-ring under pressure, ensuring reliable sealing and extending the service life of the sealing system.

Key Features:

• Backup Ring
• 340 (likely referencing AS568-340 size or similar, but not explicitly stated in available data)
• Buna-N (Nitrile) rubber
• Designed for use in GRACO sanitary pump assemblies and compatible with O-rings of similar size and application
• Supports and protects O-rings from extrusion
• Enhances sealing reliability
• Extends service life of sealing components
• Easy to install and maintain

Applications:
Used in GRACO sanitary pumps and other equipment where O-ring backup is required to maintain seal integrity under pressure.

Installation Notes:

• Using genuine GRACO backup rings ensures proper fit, performance, and longevity of the sealing system, reducing the risk of leaks and equipment downtime.
• Inspect the backup ring for damage before installation
• Ensure the O-ring and backup ring are clean and free from debris
• Install the backup ring adjacent to the O-ring in the correct orientation as specified in the equipment manual
• Lubricate as recommended by GRACO for easier installation and optimal performance
• Replace backup rings during routine maintenance or whenever O-rings are replaced
• Use only genuine GRACO parts for critical sealing applications