The GRACO 563229 is a rupture-to-atmosphere indicator designed for use in high-pressure lubrication systems. It is constructed to provide visual indication and pump protection by venting lubricant to the atmosphere when system pressure exceeds a predetermined threshold. The part is typically used with GRACO MH, MSP, and MXP divider valve series in applications where lube system pressures exceed 2,500 psi. Material is not specified in available sources, but it is a factory stock component for GRACO equipment.

Key Features:

• Rupture-to-Atmosphere Indicator
• 563229 (509-499-625)
• 2800 ± 20% PSI
• GRACO MH, MSP, MXP divider valve series
• Visual indication of excessive system pressure
• Pump protection by venting lubricant to atmosphere
• Memory function for locating blockages
• Easy to reset and maintain
• Reliable operation in high-pressure environments

Applications:
Used in lubrication systems where pressures exceed 2,500 psi, particularly with GRACO MH, MSP, and MXP divider valve series. Commonly found in industrial, mining, and agricultural equipment requiring robust pump protection and system monitoring.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of the lubrication system.
• Install using 1/8" NPT with O-ring seal for secure fit
• Tighten to 5 ft-lbs torque as recommended by GRACO
• Ensure system is depressurized before installation or maintenance
• Replace rupture disc and reset indicator pin after activation
• Regularly inspect for signs of wear or damage