The GRACO 557432 is a replacement rupture disk designed for use in GRACO equipment. It is a safety component typically made from engineered materials (exact material not specified), intended to protect systems by rupturing at a predetermined pressure, thereby preventing equipment damage or failure.

Key Features:

• Rupture Disk
• 11/16 in
• Maximum Working Pressure: 1175 psi (81 bar, 8096 kPa)
• Designed for use with GRACO equipment requiring a 11/16 in, 1175 psi rupture disk
• Acts as a safety device to protect equipment from overpressure
• Used in conjunction with system pressure switch to warn of faults
• Easy to replace, supports system reliability and maintenance

Applications:
Used in industrial lubrication and fluid handling systems where overpressure protection is required. Commonly installed in GRACO Reactor machines and similar equipment to safeguard against system faults and blocked lines.

Installation Notes:

• Using genuine GRACO replacement parts ensures proper fit, function, and safety in critical applications.
• Replace the rupture disk as part of regular maintenance or after a fault is detected
• Ensure the system is depressurized before installation
• Follow equipment manual instructions for correct installation and alignment
• Regularly inspect rupture disks for signs of wear or damage
• Replace immediately if a fault is indicated by the system pressure switch
• Use only GRACO-approved replacement parts for optimal performance and safety