The GRACO 557391 is a threaded outlet plug designed for use with Trabon® MX Divider Valves. It is constructed from alloy steel and serves as a secure connection point for lubrication lines, ensuring reliable flow and sealing within GRACO lubrication systems.

Key Features:

• Outlet Plug
• 1/4 inch (6.4 mm) NPT
• Alloy Steel
• Trabon® MX Divider Valves
• Threaded connection for secure fit
• Durable alloy steel construction
• Designed for reliable sealing and flow in lubrication systems

Applications:
Used in automatic lubrication systems for in-plant machinery and equipment requiring precise and reliable lubrication delivery.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of the lubrication system.
• Ensure threads are clean and free of debris before installation
• Apply appropriate thread sealant if required by the application
• Tighten to recommended torque specifications to prevent leaks and ensure a secure fit
• Regularly inspect for leaks or wear
• Replace if damaged or if leaks are detected
• Follow manufacturer guidelines for maintenance intervals