The GRACO 188176 SEAL, PISTON, 25:1 is a nylon piston seal designed for use in GRACO air-powered pumps, specifically for sealing the piston within the pump assembly. Its primary function is to ensure reliable sealing and smooth operation of the piston in high-pressure fluid handling equipment.

Key Features:

• Piston Seal
• 25:1
• Nylon
• GRACO air-powered pumps (e.g., Glutton series)
• Durable nylon construction for long service life
• Designed for reliable sealing in high-pressure environments
• Ease of maintenance and replacement

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

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the equipment.
• Clean all parts and inspect for wear or damage before installation
• Lubricate o-rings and seals as recommended in the manual
• Ensure the flat side of the retaining plate faces the piston seal during assembly
• Secure with appropriate screws and washers
• Follow torque specifications for housing and cap assembly
• Regularly inspect seals for wear and replace as needed
• Keep components clean and free from debris
• Use only recommended lubricants and replacement parts