The GRACO 556936 is a spring for the check valve used in high pressure (HP) pumps. It is a critical component designed to ensure proper sealing and reliable operation of the check valve within GRACO high pressure lubrication systems. The material is not explicitly specified in available sources, but it is typically made from high-grade steel or similar durable material for longevity and consistent performance in demanding environments.

Key Features:

• Spring, Check Valve
• HP Pump (High Pressure Pump)
• Compatible with GRACO high pressure pump assemblies, including models like HP-50
• Ensures reliable sealing of the check valve
• Critical for maintaining system pressure and preventing backflow
• Designed for durability and consistent performance in high pressure environments
• Ease of maintenance: replaceable component within the check valve assembly

Applications:
Used in GRACO high pressure lubrication systems, such as the HP-50 lubricator, for industrial lubrication applications in mining, manufacturing, and other heavy-duty environments.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety of the lubrication system. Non-genuine parts may compromise system integrity and lead to equipment failure.
• Always follow the equipment manual for installation procedures
• Ensure the system is depressurized before replacing the spring or check valve
• Inspect the spring and valve seat for wear or damage during maintenance
• Use appropriate tools and safety equipment when servicing high pressure systems