The GRACO 188177 SEAL, PISTON, 4:1 is a nylon piston seal designed for use in GRACO air-powered pumps, such as the Glutton series. Its primary function is to provide a reliable seal between the piston and pump housing, ensuring efficient and leak-free operation in fluid transfer applications.

Key Features:

• Piston Seal
• 4:1 (ratio not further specified in available documentation; may refer to pump ratio or seal size)
• Nylon
• Compatible with GRACO air-powered pumps, including Glutton series
• Durable nylon construction for wear resistance
• Designed for easy replacement and maintenance
• Reliable sealing performance in demanding industrial environments

Applications:
Used in GRACO air-powered pumps for transferring waterborne and solvent-based paints, catalysts, and other industrial fluids. Suitable for professional and industrial use.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the equipment.
• Refer to the specific GRACO pump manual for detailed installation instructions
• Ensure all mating surfaces are clean and free of debris before installation
• Apply appropriate lubrication to the seal and surrounding components as recommended in the manual
• Follow torque specifications for any fasteners involved in the assembly
• Regularly inspect seals for wear or damage
• Replace seals at recommended intervals or when leaks are detected
• Use only GRACO-approved lubricants and replacement parts