The GRACO 18A838 is a Posipak seal designed for use in GRACO fluid handling systems. It is constructed from UHM (Ultra High Molecular weight polyethylene or similar high-performance material, though 'B' and 'UHM' may refer to specific grades or proprietary blends), providing durability and resistance to wear. This seal is intended to create a reliable barrier between components, preventing leaks and maintaining system integrity in demanding industrial environments.

Key Features:

• Seal, Posipak
• 3/4 inch inner diameter (ID) x 1 inch outer diameter (OD)
• UHM (Ultra High Molecular weight polyethylene or similar high-performance material; 'B' may indicate a specific grade or blend)
• Robust construction for longevity and reliability
• Designed for easy installation and maintenance
• Suitable for demanding industrial environments

Applications:
Used in GRACO fluid handling systems to prevent leaks and maintain pressure, suitable for industrial lubrication, maintenance, and fluid transfer applications.

Installation Notes:

• Using genuine GRACO parts ensures optimal fit, performance, and system reliability.
• Ensure the system is depressurized before installation
• Clean mating surfaces thoroughly before fitting the seal
• Follow GRACO equipment manual instructions for specific installation procedures
• Inspect seals regularly for wear or damage
• Replace seals during routine maintenance to prevent leaks and downtime
• Use only genuine GRACO replacement parts for best results