The GRACO 190015 is a piston seal made from PTFE (polytetrafluoroethylene), designed for use in GRACO pumps and supply units to ensure effective sealing between moving parts, preventing leaks and maintaining operational integrity.

Key Features:

• Piston Seal
• PTFE (polytetrafluoroethylene)
• Used on Model 237945 only (as per some manuals); may be compatible with other GRACO equipment as referenced in parts lists
• High chemical resistance due to PTFE construction
• Designed for reliable sealing in dynamic applications
• Ease of maintenance and replacement

Applications:
Used in GRACO pumps and supply units, particularly in equipment requiring robust sealing solutions for high-pressure or chemically aggressive environments. Commonly found in lubrication, paint, and adhesive dispensing systems.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, longevity, and safety of equipment. Non-genuine parts may compromise seal integrity and equipment reliability.
• Lubricate the piston seal before installation to reduce friction and wear.
• Ensure the piston and seat are clean and free of debris before fitting the seal.
• Follow the equipment manual for specific installation procedures and torque specifications.
• Regularly inspect the seal for wear and replace as needed to prevent leaks and maintain system efficiency.