The GRACO 563228 is a rupture-to-atmosphere indicator designed for use in high-pressure lubrication systems. It is constructed to provide visual indication and protection by venting lubricant to the atmosphere when system pressure exceeds a predetermined threshold. This part is typically used in conjunction with GRACO MH, MSP, and MXP divider valve series to safeguard pumps and systems from excessive pressure caused by lube line blockages. The indicator is compatible with oil-based lubricants and is intended for industrial lubrication applications where pressures may exceed 2,500 psi.

Key Features:

• Rupture-to-Atmosphere Indicator
• 1/8-27 NPTF
• 2800 psi (193 bar) ± 20%
• GRACO MH, MSP, MXP divider valve series; oil-based lubricants
• Visual indication of excessive system pressure
• Protects pumps and systems from overpressure
• Replaceable disc for easy maintenance
• Reliable operation in high-pressure environments

Applications:
Used in industrial lubrication systems, particularly where lube system pressures exceed 2,500 psi. Commonly installed in in-plant machinery, compressor equipment, and other high-pressure lubrication applications.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, function, and safety in high-pressure lubrication systems. Non-genuine parts may not meet required specifications and could compromise system integrity.
• Ensure the system is depressurized before installation or maintenance
• Tighten the disc to 5 ft-lbs as specified by GRACO
• Regularly inspect the indicator for signs of rupture or wear
• Replace the disc and reset the pin manually after a rupture event
• Follow manufacturer guidelines for installation and maintenance
• Use only compatible lubricants and replacement parts
• Keep spare discs on hand for quick replacement