The GRACO 223591 STUD, PISTON ASSY is a piston valve assembly component designed for use in GRACO air-operated double diaphragm pumps and similar equipment. It is typically constructed from stainless steel for durability and corrosion resistance. Its primary function is to facilitate the movement and sealing of the piston within the pump, ensuring reliable fluid transfer in industrial applications.

Key Features:

• Piston Valve Stud Assembly
• Stainless steel (commonly used for this part number)
• Compatible with GRACO air-operated double diaphragm pumps and similar models (e.g., GRACO 23:1 Monark series)
• Durable stainless steel construction for long service life
• Designed for easy replacement and maintenance
• Reliable sealing and piston movement within the pump

Applications:
Used in industrial fluid transfer applications, including lubrication, chemical processing, and material handling. Suitable for use in mining, agriculture, and other heavy-duty environments.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and longevity of the equipment. Non-genuine parts may compromise pump reliability and void warranties.
• Follow the manufacturer’s instructions for disassembly and reassembly of the piston valve assembly.
• Ensure all packings and seals are installed in the correct orientation and sequence as specified in the manual.
• Lubricate components as recommended before installation.
• Torque fasteners to the manufacturer’s specified values to prevent leaks and ensure proper operation.
• Inspect for wear or damage before installation and replace if necessary.
• Regularly inspect and maintain piston valve assemblies to prevent downtime.
• Use only recommended lubricants and replacement parts.
• Keep detailed records of maintenance and part replacements.